cambridgeip nanoformulation: patenting trends in nanoparticles

© 2010 CambridgeIP Ltd. All rights reserved

Recent Patenting Trends in NanoParticle Manufacturing

Nanoformulation 2010

Stockholm, 11/06/2010

11th June 10

Ilian Iliev, CEO and co founder of CambridgeIPQuentin Tannock, Chairman and Co Founder of CambridgeIPKarishma Jain, Associate Consultant

© 2010 CambridgeIP Ltd. All rights reserved.

Contents

• CambridgeIP background

• Patent landscaping – a primer

• Patenting in Nanotech broadly

• Patenting in Nanoparticle Manufacturing

2


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Contents





4

© 2010 CambridgeIP Ltd. All rights reserved.5 © 2009. CambridgeIP. All rights

reserved

A reminder: why Patent Landscaping is necessary

Patents can be a highly reliable source of information about an industry

• Patents as data are structured, comparable, objective and information rich

• Information on technology, inventors, linkages to other fields…

But… there are major challenges related to

• Defining your technology space

• Identifying relevant patents

• Interpreting the results

Akin to finding multiple needles in multiple haystacks

A simple search for ‘silicon device’ returns 671,882 patents! Where do you begin?


Multiple patents protect a single product or process

6

Canister

Actuation System

Valves and Mouthpiece

© 2010 CambridgeIP. All rights reserved


Discovery of networks and knowledge flows

7 © 2010 CambridgeIP Ltd. All rights reserved

Case Study:Plastic Logic,Cambridge University Spin-off

Blue: InventorRed: OwnerSize: Quantity

0

50

100

150

200

250

300

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400

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60

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Pate

nts

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Pate

nts

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earl

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Number of Patents: Annual and Cumulative

Number of New Applications Cumulative

© 2010


Contents





8

© 2010 CambridgeIP Ltd. All rights reserved.9

Nano-context: Key Conclusions from Previous Research (1)

Patent trends research indicates that nanotechnology:• Is a cross-cutting technology applicable to multiple market sectors

• Has high levels of public development and support , compared to the average in other fields

• Global development and application

– US is a leader in terms of volume of patent filings , and is highly diversified

– Nanobiotechnology dominates European patent filings

– Nanoelectronics dominates Japan activity

Source: EPO (2007)


CambridgeIP research reveals:• Higher inter-relation between patents in nano-field

– Higher patent forward citation rates for patents relative to forward citation rates observed elsewhere

– Rising strength of China: Rise in China patenting rates (accompanied by acquisitions of companies and technologies by Chinese companies)

– Russia: Russian nanotechnology developments are often be overlooked in the English speaking world. Many clients have little or no exposure to patent and non-patent literature in Cyrillic. The role of RusNano?

• Patenting rates slow down from 2004 in some nanotechnology sub-spaces, in part driven by:

– Delays in patentn filings (perhaps due to „time to market‟ and other considerations)

– Fewer nano patents granted: Increased sophistication and rigor of the nano-patent examination process

– Lower levels of VC investment: end of the honeymoon?

• Multiple & varied technology areas with inter-dependencies and growing number of applications

10

Nano-context: Key Conclusions from Previous Research (2)

1996: A relatively small number of

IPCs is associated with the

nanotechnology field

2006: An „explosion‟ of activity across an ever-increasing array of industrial applications: no single „core area can be discerned: indicative of a „raft‟ or a „platform‟ technology entering maturity


Industry Example: Photovoltaics patents and nano-related patents

PV and Wind are the most highly patent low-carbon energy fields

The key patent holders differ between PV overall and nano-PV

Number of patents by year

Photovoltaic Space and subspaces

0

1 00

2 00

3 00

4 00

5 00

6 00

7 00

8 00

9 00

1976

1978

1980

1982

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

2004

2006

Nanotech Related Amorphous Silicon Cd Te CIS & CIGS Dy e Sensitized

Source: Chatham House – CambridgeIP (2009) ‘Who Owns Our Low-Carbon Future?’Full report available for download from CambridgeIP’s website: www.cambridgeip.com

Report was co-authored with Bernice Lee and Felix Preston of Chatham House

Assignee Patent # Assignee Patent # Assignee Patent #

SHARP 608 UNIVERSITY CALIFORNIA 42 SANYO 57

CANON 561 NANOSOLAR INC 41 CANON 49

SANYO 483 KONARKA TECHNOLOGIES INC 40 KANEGAFUCHI KAGAKU KOGYO KK 36

MITSUBISHI 416 GENERAL ELECTRIC CO 34 FUJI ELECTRIC CO LTD 33

MATSUSHITA ELECTRIC 359 SAMSUNG ELECTRONICS CO LTD 30 ENERGY CONVERSION DEVICES INC 28

FUJI ELECTRIC CO LTD 258 WILLIAM MARSH RICE UNIVERSITY 26 HITACHI 23

HITACHI 223 CANON 24 GUARDIAN INDUSTRIES 22

MERCK PATENT GMBH 198 DUPONT 22 SHARP 22

KYOCERA CORPORATION 190 SONY CORP 21 MITSUBISHI 21

KANEGAFUCHI KAGAKU KOGYO KK 184 NANOSYS INC 19 SIEMENS 18

Nanotech RelatedOVERALL Amorphous Silicon

Assignee Patent # Assignee Patent # Assignee Patent #

SHARP 608 UNIVERSITY CALIFORNIA 42 SANYO 57

CANON 561 NANOSOLAR INC 41 CANON 49

SANYO 483 KONARKA TECHNOLOGIES INC 40 KANEGAFUCHI KAGAKU KOGYO KK 36

MITSUBISHI 416 GENERAL ELECTRIC CO 34 FUJI ELECTRIC CO LTD 33

MATSUSHITA ELECTRIC 359 SAMSUNG ELECTRONICS CO LTD 30 ENERGY CONVERSION DEVICES INC 28

FUJI ELECTRIC CO LTD 258 WILLIAM MARSH RICE UNIVERSITY 26 HITACHI 23

HITACHI 223 CANON 24 GUARDIAN INDUSTRIES 22

MERCK PATENT GMBH 198 DUPONT 22 SHARP 22

KYOCERA CORPORATION 190 SONY CORP 21 MITSUBISHI 21

KANEGAFUCHI KAGAKU KOGYO KK 184 NANOSYS INC 19 SIEMENS 18

Nanotech RelatedOVERALL Amorphous Silicon


Contents





12


Nanoparticle manufacturing background

Nanotechnology has cross-sectoral application

A number of challenges before its full commercial potential is realised:

• Lack of large scale manufacturing techniques

• Challenge on cost effective production

• Health/safety concerns

• Very long time to market for nano-products

• Unclear regulatory framework – affecting investment decisions into R&D and manufacturing capacity

13


14

Patent Study Methodology

We undertook patent research into key nano-particle manufacturing techniques and identified patents of interest emerging over the last 5 years

• Using expert interviews and our patent data mining we built a technology matrix covering:

– 15 manufacturing methods

– 14 industry applications

• We conducted a semi-automated and expert-validated analysis of the space and identified example patents

• In the next slides we show some of our results

• Further research is available on request


Nano-Technology Manufacturing Methods

Method Detail Type

Deposition techniques

To settle nanoparticles from a bulk material onto a pre-existing surface

Top Down

Mechanical Production of nanoparticles using physical mechanism

Top Down

Wet chemistry Nanoparticles used in chemical organic solution

Bottom Up

Gas phase synthesis Nanoparticles being produced in gas phase using various technologies

Bottom Up

Production in liquid carbon dioxide

Liquid CO2 infused with nanoparticles for coating/cleaning purposes

Bottom Up

Use of scaffolds (polymer)

Use of a mould to build nanoparticles Bottom Up

Creating nanoscale devices by using larger, externally-controlled materials, directing their formation

Using small molecular components, building them up into more complex assemblies


Technology Matrix: Bio related Fields

16

NanoParticles Manufacturing

Techniques

drug delivery/

(re)

Formulation

Medicine –

diagnostics

scaffolds for

tissue

engineering

Cosmetics


lithography xvacuum coating

spray coating

Mechanical

ball milling xplanetary grinding x

Wet chemistry

Sol-Gel Processing x x x xHydrothermal synthesis x x xmicroemulsion processing x x x xnanoemulsion processing x x x xSonochemical processing x x x x

Gas phase synthesis

plasma vaporization

chemical vapour synthesis

laser ablation

Production in liquid CO2 x x x x

Use of scaffolds (polymer) x x x x

Bo

tto

m U

pTo

p D

ow

n


Technology Matrix:Environment related Fields

17

Key area of concern for climate change policy


Techniques

fuel cells Photovoltaics construction

and concrete

air purification water

purification


lithography x x x xvacuum coating x x x xspray coating x x x x

Mechanical

ball milling x xplanetary grinding x x

Wet chemistry

Sol-Gel Processing x x x xHydrothermal synthesis x x xmicroemulsion processing x x xnanoemulsion processing x x xSonochemical processing x x x

Gas phase synthesis

plasma vaporization xchemical vapour synthesis xlaser ablation x

Production in liquid CO2 x x x x

Use of scaffolds (polymer) x x

Bo

tto

m U

pTo

p D

ow

n


Technology Matrix:Industry related Fields

18


Techniques

automotive aerospace lubricants for

industrial

components

paints, smart

coatings

catalysis electronics


lithography x x x x x xvacuum coating x x x x x xspray coating x x x x X x

Mechanical

ball milling x x x x xplanetary grinding x x x x x

Wet chemistry

Sol-Gel Processing x x x x xHydrothermal synthesis x x x x x xmicroemulsion processing x x x x xnanoemulsion processing x x x x xSonochemical processing x x x x x

Gas phase synthesis

plasma vaporization x x x x xchemical vapour synthesis x x x x xlaser ablation x x x x x

Production in liquid CO2 x x x x x x

Use of scaffolds (polymer) x x x x x x

Bo

tto

m U

pTo

p D

ow

n


Contents


• Technology Field Definition

• Patent Examples

• Appendices

19


CN101602508

Method for preparing monodisperse nano silicon dioxide spherical particle hydrosol and application thereof

Assignee: UNIV ZHEJIANG SCIENCE & TECH [CN]

Inventor: JIANJUN CHEN [CN]; NAIYAN WANG [CN]; LINHUI GAO [CN]; ZHAO WANG [CN]

Publication Date: 2009-12-16

Abstract: The invention discloses a method for preparing monodisperse nano silicon

dioxide spherical particle hydrosol and application thereof. The method adopts a sol-gel method and comprises the following steps: using ammonia as a catalyst for the hydrolysis of ethyl orthosilicate, and using ethanol as a solvent to prepare nano SiO2 particles, namely adopting a method for preparing the SiO2 particles through a st ber method so as to obtain a suspension of the SiO2 particles dispersed in the ethanol solvent; adopting a heating and blasting process to volatize most of the ethanol in the suspension so as to obtain a nano silicon dioxide particle slurry; and adding an aqueous solution of alkamine into the slurry to finally prepare a nano SiO2 hydrosol, wherein the volatized ethanol can be reused after being collected. The hydrosol is applied to modified water-based external wall coatings, water-based fire-retardant coatings and water-based woodwork coatings. The nano silicon dioxide does not exist in the form of powder to avoid agglomeration of nano particles and improve the dispersity of the nano particles in the water-based coatings, thereby improving the performances of weatherability, washability, storage stability and the like of the coatings.


Example Patent: Sol-Gel

20

aerospace paints, smart

coatings

construction

and concrete


CN101602596

Lithium tantalate nano powder and preparation method thereof

Assignee: UNIV CHINA GEOSCIENCES WUHAN [CN]

Inventor: JIANHUI HU [CN]; YANGAI LIU [CN]; MINGHAO FANG [CN]; ZHANXING SUN [CN]; CHAOHUI HUANG [CN]


Abstract: The invention relates to lithium tantalate nano powder

and a preparation method thereof, and belongs to the technical field of functional ceramic powder. The lithium tantalate nano powder is prepared by a sol-gel method. Ta2O5 and Li2CO3 as main raw materials and citric acid (CA) as a complexing agent react to form a stable metal-citric acid complex compound which is used as a tantalum source and a lithium source; an ethylene glycol (EG) esterifying agent is added into the metal-citric acid complex compound to form a polymer network with the citric acid; tantalum ions and lithium ions are evenly dispersed in the network to form stable polymer precursor sol; and the polymer precursor sol is dried and calcined to form LiTaO3 nano powder with good dispersion property. Because the Ta2O5 is used as an initial raw material of the tantalum, the cost is low; and the experimental device requirement is low, the process is simple, and the operation is convenient.



21

Cosmetics Medicine –

diagnostics

automotive aerospace electronics


MX2009007013

PROCESSES FOR THE HYDROTHERMAL PRODUCTION OF TITANIUM DIOXIDE.

Assignee: DU PONT [US]

Inventor: CORBIN DAVID RICHARD [US]; HUTCHENSON KEITH W; LI SHENG; TORARDI CARMINE; MCCARRON EUGENE MICHAEL


Abstract: The present invention provides hydrothermal

processes for the production of titanium dioxide from titanyl hydroxide. The use of specific crystallization directors, or additives, can promote the formation of rutile, anatase, or brookite. Variation of process operating parameters can lead to either pigmentary-sized or nano-sized rutile.


Example Patent: Hydrothermal

drug delivery/

(re)

Formulation

Medicine –

diagnostics

catalysis automotive aerospace paints, smart

coatings

electronics

22


KR20080096023

METHOD OF PREPARING LITHIUM TITANATE NANOPARTICLES UNDER SONOCHEMICAL CONDITION

Assignee: SAMSUNG ELECTRONICS CO LTD [KR]; UNIV CHUNG ANG IND [KR]; SEOUL NAT UNIV IND FOUNDATION [KR]

Inventor: SHIM IL WUN [KR]; KWAK HO YOUNG [KR]; LEE SEUNG SOO [KR]; BYUN KI TAEK [KR]; PARK JONG PIL [KR]; KIM SIN KYU [KR]


Abstract: A manufacturing method of lithium titanate nano particle is provided to

raise a composition and a purity of the lithium titanate by using the precursor manufactured by coating the lithium hydroxide which is reactant onto a surface of titanium dioxide. The lithium titanate nano particle can be mass-produced by heat-treating in the more mild condition in a short time. Furthermore, the lithium titanate nano particle manufactured from the manufacturing method is usefully used as the lithium secondary battery cathode material. A lithium titanate nano particle is manufactured by manufacturing precursor manufactured by coating the lithium hydroxide onto a surface of the titanium dioxide, and heat-treating the precursor at the low temperature less than 500deg.C for the short time in the alcohol solution by performing the sonochemical reaction under the multiplexer sound wave luminescence condition. The alcohol solution contains a titanium dioxide(TiO2) and a lithium hydroxide(LiOH).


Example Patent: Sonochemical

automotive electronics

23


US20090022995

IN-SITU NANOPARTICLE FORMATION IN POLYMER CLEARCOATS

Assignee: University of Kentucky, Institute for Sustainable Manufacturing (?)

Inventor: GRAHAM USCHI URSULA M [US]; KHATRI RAJESH [US]; DAVIS BURT H [US]


Abstract: Methods and compositions for forming a transparent

clear coat characterized by a desired property, such as a color effect, resistance to UV light-induced degradation and/or scratch resistance, on a substrate are detailed according to embodiments of the present invention. Particular compositions and methods for producing a transparent clear coat layer include nanoparticles formed in-situ during curing of a transparent clear coat. Curable clear coat compositions are described according to embodiments of the present invention which include one or more substantially dissolved nanoparticle precursors.


Example Patent: Spray Coating

24

automotive aerospace paints, smart

coatings


WO2009011981

METHOD OF FORMING STABLE FUNCTIONALIZED NANOPARTICLES

Assignee: UNIV TULANE [US]; MITCHELL BRIAN S [US]; FINK MARK J [US]; HEINTZ

ANDREW S [US]

Inventor: MITCHELL BRIAN S [US]; FINK MARK J [US]; HEINTZ ANDREW S [US]


Abstract: A novel top-down procedure for synthesis of stable

passivated nanoparticles uses a one-step mechanochemical process to form and passivate the nanoparticles. High-energy ball milling (HEBM) can advantageously be used to mechanically reduce the size of material to nanoparticles. When the reduction of size occurs in a reactive medium, the passivation of the nanoparticles occurs as the nanoparticles are formed. This results in stable passivated silicon nanoparticles. This procedure can be used, for example in the synthesis of stable alkyl- or alkenyl-passivated silicon and germanium nanoparticles. The covalent bonds between the silicon or germanium and the carbon in the reactive medium create very stable nanoparticles.


Example Patent: Ball Milling

25

catalysis fuel cells


KR20090074360

POROUS NANOCARBON MANUFACTURING METHOD USING BALL MILLING

Assignee: LEE IN SOON [KR]

Inventor: LEE IN SOON [KR]; PARK TAE HEE [KR]


Abstract: A method for manufacturing porous nano carbon

through ball milling is provided to control the maximum speed of a motor of a ball mill based on the sizes of containers. A method for manufacturing porous nano carbon through ball milling comprises the following steps of: putting 10g-10kg of natural graphite or processed artificial graphite with the size of 10mum -20cm in a ball mill's container; and settling a ball with the size of 8-150mm and the weight of 400g-450kg in the ball mill's container. The size of the ball depends on the weight of carbon inputted. The container has 98mm of height and 90mm of inner diameter. The processing speeds of the ball mill have rotation speed of 32000rpm and revolution speed of 1200rpm.


Example Patent: Ball Milling

fuel cells

26


EP1867386

Method for the production of nanoparticles

Assignee: Applied Materials, Inc (?)

Inventor: WENDLING THOMAS


Abstract: The present invention relates to methods for the

production of nanoparticles which may be optionally coated. In particular, the present invention relates to methods for the production of nanoparticles characterized in that precursors are subjected to substantially the same amount of activation energy in the activation zone at a predetermined concentration of precursors and at a predetermined time of exposure to the activation energy. Furthermore, the present invention relates to nanoparticles produced by the methods according to the present invention. Finally, the present invention concerns a device for producing nanoparticles according to the method of the present invention. The activation energy is selected from the group of RF plasma, MW plasma, IR plasma, thermal plasma, heat, photon absorption, plasma by electric discharge or radioactive radiation or sonar energy.


Example Patent: Chemical Vapour Synthesis

27


coatings

fuel cells electronics

Large Scale Manufacturing


US2010044646

Supercritical fluid process for producing nano graphene platelets

Assignee: Angstron Materials, Inc. (?)

Inventor: ZHAMU ARUNA [US]; JANG BOR Z [US]


Abstract: The present invention provides a process for producing

pristine or non-oxidized nano graphene platelets (NGPs) that are highly conductive. The process comprises: (i) subjecting a graphitic material to a supercritical fluid at a first temperature and a first pressure for a first period of time in a pressure vessel and then (ii) rapidly depressurizing the fluid at a fluid release rate sufficient for effecting exfoliation of the graphitic material to obtain the NGP material. Conductive NGPs can be used as a conductive additive in transparent electrodes for solar cells or flat panel displays (e.g., to replace expensive indium-tin oxide), battery and supercapacitor electrodes, and nanocomposite for electromagnetic wave interference (EMI) shielding and static charge dissipation, etc.


Example Patent: Production in Liquid CO2

Medicine –

diagnostics

automotive aerospace Photovoltaics air

purification

electronics

28


US2010035062

MANUFACTURING METHODS OF MAGNESIUM-VANADIUM COMPOSITE OXIDE NANOPARTICLE AND MAGNESIUM-VANADIUM COMPOSITE OXIDE NANOPARTICLE MANUFACTURED BY THE SAME

Assignee: Schaefer School of Engineering & Science (?)

Inventor: LIM CHUL TACK [KR]; CHOI CHANG HWAN [KR]; CHUN BYOUNG JIN [KR]; YANG JIN HYUCK [KR]


Abstract: Provided are manufacturing methods of a magnesium-

vanadium composite oxide nanoparticle that make it possible to manufacture a composite oxide of several tens of nanometers in size containing two kinds of metals, and also to accurately design and manufacture a product material having a desired ratio between the metals, and a magnesium-vanadium composite oxide nanoparticle manufactured by the manufacturing methods. In the manufacturing method, a solution containing a magnesium salt and a vanadium salt is prepared. An organic polymer having nano-sized pores is dipped in the prepared solution, and is then heated until the organic polymer is calcined, thereby manufacturing a magnesium-vanadium composite oxide nanoparticle.


Example Patent: Use of Scaffolds

29

Photovoltaics Fuel Cells electronics

coatngs


New EU regulation may require cosmetics manufacturers to list any nanoparticles contained in products marketed within the European Union

• Approved on November 2009 by the Council of the European Union• All ingredients present in the product in the form of nanomaterials should be clearly indicated in the list of ingredients


Toxicology

30

The ruling defines nanomaterial as 'an insoluble or biopersistant and intentionally manufactured material with one or more external dimensions, or an internal structure, on the scale from 1 to 100 nm'.

1,160 L’Oréal patents including ‘nano’

© 2010 CambridgeIP Ltd. All rights reserved.© 2010 CambridgeIP Ltd. All rights reserved.

Nanotoxicology: A Large Network

31

Own 3 patents on Cell Nanotoxicology(See next Slide)

Pioneers in the preventionNow working with the EC

Specialized Magazine

A Network of Universities and Institutes

Database

http://icon.rice.edu/


WO2007094870

TOXICOLOGY AND CELLULAR EFFECT OF MANUFACTURED NANOMATERIALS

Assignee: UNIV CALIFORNIA

Inventor: CHEN FANQING [US]


Abstract: The increasing use of nanotechnology in consumer

products and medical applications underlies the importance of understanding its potential toxic effects to people and the environment. Herein are described methods and assays to predict and evaluate the cellular effects of nanomaterial exposure. We have performed whole genome expression array analysis and high content image analysis-based phenotypic measurements on human skin fibroblast cell populations exposed to multiwall carbon nano-onions (MWCNOs), multiwall carbon nanotubes (MWCNTs), and semiconductor nanocrystals. Here we demonstrate that exposing cells to nanomaterials at cytotoxic doses induces cell cycle arrest and increases apoptosis/necrosis, activates genes involved in cellular transport, metabolism, cell cycle regulation, and stress response.; Certain nanomaterials induce genes indicative of a strong immune and inflammatory response within skin fibroblasts. Furthermore, the described MWCNOs can be used as a therapeutic in the treatment of cancer due to its cytotoxicity.


Example Patent: Toxicology

Nanotoxicity

32


Contents

• Project Background and Definitions

• Technology Matrix

• Patent Examples

• Conclusion

33


Patterns noticed in initial searches:

• Most nanoparticle manufacturing patents primarily target a specific material or class of materials rather than an application

• The application patents typically tend to be for formulations involving several components, and methods for manufacturing them

• Many of the recent patents are from key emerging market locations including China and Russia

• Many of the patents are about the manufacturing method and the nanoparticles: indicative of early stage of development of process


Volume/Quality Requirements for Nanoparticle Manufacturing

We know some of the volume/quality requirements for nanoparticle manufacturing

The key question will be which are the technologies that become adopted/accepted in each of these fields

As the technology matures, the different industry field requirements will determin industrial R&D

Volume Requirements

Quality

Requir

em

ents

HighLow

Low

High

Cement/ Construction

Cosmetics

Scaffolds for tissue engineering

Drug formulations/delivery

Aerospace

Medical Diagnostics

Catalysis

Photovoltaic

Paints/coatings

Industrial lubricants

Automotive

Fuel Cells

Air purification

Water purification

Experimental applications


36 © 2010 Cambridge Intellectual Property Ltd. All rights reserved.

…and finally…

Please contact Ilian Iliev for a copy of the results and any other questions you may have:

[email protected]+44 77 863 73965

Thank You !Ilian Iliev

(CEO and Co Founder)

[email protected]

GSM: +44-077-863-73965

Tel: +44-1223-370-098

Corporate Office

Cambridge Intellectual Property LtdSheraton HouseCastle Park, CambridgeCB3 OAX United KingdomUK: +44 (0) 1223 370 098Fax: +44 (0) 1223 370 040

Internet Resources

Website: www.cambridgeip.comBlog: www.cambridgeip.com/blog

Sign-up for our Free Newsletteron our Home Page

Quentin Tannock

(Chairman and Co Founder)

[email protected]

GSM: +44-077-862-10305

Tel: +44-1223-370-098

mailto:[email protected]





WO2007109244

NOVEL NANOPARTICLES FOR DELIVERY OF ACTIVE AGENTS

Assignee: MOREHOUSE SCHOOL OF MEDICINE [US]; LILLARD JAMES W [US]; SINGH RAJESH [US]; SINGH SHAILESH [US]

Inventor: LILLARD JAMES W [US]; SINGH RAJESH [US]; SINGH SHAILESH [US]


Abstract: Milled nanoparticles comprising a biolgically active

agent, at least one biopolymer and a coating containing at least one coating which is a polymer or ligand are produced using milling and coating techniques which have not previously been used for these applications


Example Patent: Planetary grinding

37

Cosmetics drug

reformulation /

reconstitution

drug delivery Medicine –

diagnostics


CN101597035

Method for preparing nano vanadium nitride electrode material

Assignee: UNIV SICHUAN [CN]

Inventor: HENG LIU [CN]; LING LU [CN]


Abstract: The invention relates to a method for preparing a nano

vanadium nitride electrode material for a super capacitor. The method comprises the following steps: using analytically pure vanadium pentoxide as an initial raw material, preparing a precursor of nano vanadium nitride by a sol-gel method, filtering sol of V2O5, refrigerating the precursor for 20 to 30 hours at the temperature of between 20 DEG C below zero and 50 DEG C below zero in a refrigerator, then putting the precursor into a refrigeration dryer, and refrigerating and drying the precursor for 20 to 30 hours; and performing nitriding and reducing reaction on the precursor for 1 to 3 hours at the temperature of between 550 and 800 DEG C under the atmosphere of ammonia gas to obtain nano-scale vanadium nitride granules. The method is simple to operate, and can prepare the spherical vanadium nitride granules of about 12 nanometers; and the vanadium nitride granules used as the electrode material for the super capacitor have specific capacity of 398 to 608 F/g.



38

electronics


US20050287308

Method for producing nanoparticles and nanostructured films

Assignee: UNIV TEXAS

Inventor: BECKER MICHAEL F [US]; KETO JOHN W [US]; KOVAR DESIDERIO [US]


Abstract: A method for producing composite, shelled, alloy and

compound nanoparticles as well as nanostructured films of composite, shelled, alloy and compound nanoparticles by using laser ablation of microparticles is disclosed.


Example Patent: Laser Ablation

39

aerospace lubricants for

industrial

components

paints, smart

coatings


CN1915811

Method for preparing Nano carbon white from fly ash based on gas phase sol gel method

Assignee: UNIV JIANGSU [CN]

Inventor: NI LIANG JIANG [CN]


Abstract: This invention relates to a sol-gel method for

preparing nanoscale white carbon black from fly ashes, NaF and concentrated H2SO4. The method comprises: (1) dissolving fly ashes in HNO3, and sintering at a high temperature to obtain SiO2; (2) dropping concentrated H2SO4 onto SiO2 and SiF4 to generate SiF4 gas, introducing SiF4 gas into solution of sodium dodecyl sulfate, Sodium dodecyl sulfonate and cetyltrimethyl ammonium bromide, hydrolyzing to obtain sol and then gel, and calcining to obtain nanoscale white carbon black. The obtained nanoscale white carbon black has diameters of about 20nm, and a specific surface area of 58-631 m2/g. Besides, the nanoscale white carbon black is semi-transparent white, and has such advantages as high purity, no obvious aggregation, high dispersibility and high activity. The method has such advantages as mild reaction conditions, easy control of the techniques and simple process.


Example Patent: Gas Phase Solid Gel

40


coatings

construction

and concrete


WO2008072239

FORMATION OF NANOMETRIC CORE-SHELL PARTICLES HAVING A METAL OXIDE SHELL

Assignee: SOL GEL TECHNOLOGIES LTD (Israel)

Inventor: TOLEDANO OFER [IL]; SERTCHOOK HANAN [IL]; ABU-REZIQ RAED [IL]; BAR-SIMANTOV HAIM [IL]; SHAPIRO LEORA [IL]


Abstract: A process for preparing nanocapsules having a core-

shell structure, comprising: (a) preparing an oil-in-water emulsion by emulsification of an oily phase that comprises a core material, in an aqueous phase, under high shear forces, wherein one or both of the oily phase, and the aqueous phase comprises a sol-gel precursor; (b) subjecting the emulsion obtained in (a) to a high pressure homogenization to obtain a nano-emulsion; and (c) applying conditions for hydrolyzing and polycondensing the sol-gel precursor to obtain nanocapsules having a metal oxide shell encapsulating the core material, said nanocapsules have a particle size distribution of: d10 = 10-80 nm, d50 = 30-200 nm, and d90 = 70-500 nm, in diameter. The invention also relate to nanocapsules having the above particle size distribution and to composition comprising the nanocapsules.



drug delivery/

(re)

Formulation

paints, smart

coatings

41

cambridgeip nanoformulation: patenting trends in nanoparticles

Business

patent landscaping

patents cumulative40

multiple patents

industry patents

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