Patent library

Intellectual property rights represent an essential competitive advantage for companies in the pharmaceutical and medical device sector. Today, more than 100 international patents list Chempilots staff as inventors or contributors on patents owned by our customers.

Chempilots has a long and broad experience in generating patentable techniques and applications. In particular, we are able to develop and engineer inventions and describing these appropriately. As a result, we have filed patents in conjunction with the majority of our customers.

We also have experience in analyzing and challenging prior art to assist in the evaluation of patentability, freedom to operate, and possible infringement

The following patent list covers the main patents that include significant contributions from Chempilots:

Public. No.

Title

Pub. date

Client

US2009244479

Tinted silicone ophthalmic devices, processes and polymers used in the preparation of same 

01-10-2009

Johnson & Johnson Vision Care, Inc

US2009111905

Process for forming random (meth)acrylate containing prepolymers  

30-04-2009

Johnson & Johnson Vision Care, Inc

US2009092538

Methods for forming stabilized metal salt particles

 

09-04-2009

Johnson & Johnson Vision Care, Inc

US2008179770

Ophthalmic lens mold having vent portion around a circumference 

31-07-2008

Johnson & Johnson Vision Care, Inc

US20060036052

Low polydispersity poly-hema compositions

16-02-2006

Johnson & Johnson Vision Care, Inc

WO05077547

A method for dispensing viscous materials

25-08-2005

Johnson & Johnson Vision Care, Inc

US6846892

Low polydispersity poly-HEMA compositions

25-01-2005

Johnson & Johnson Vision Care, Inc

US2005004345

Solvents useful in the preparation of polymers containing hydrophilic and hydrophobic monomers

06-01-2005

Johnson & Johnson Vision Care, Inc

US2004189981

Inspection of ophthalmic lenses using absorption

30-09-2004

Johnson & Johnson Vision Care, Inc

US2004141150

Hybrid multifocal contact lenses

22-07-2004

Johnson & Johnson Vision Care, Inc

US6765083

Solvents useful in the preparation of polymers containing hydrophilic and hydrophobic monomers

20-07-2004

Johnson & Johnson Vision Care, Inc

US2004119174

Method for forming ophthalmic lenses using reusable molds

24-06-2004

Johnson & Johnson Vision Care, Inc

KR20040044018

Polyacrylamide hydrogel and use thereof as injectable and implantable endo-prosthesis  

27-05-2004

Contura S.A.

US6610220

Process of manufacturing contact lenses with measured exposure to oxygen

26-08-2003

Johnson & Johnson Vision Care, Inc

WO03018641

Temperature controlled process for preparation of homogeneous polymers

06-03-2003

Contura S.A.

US6511617

Consolidated contact lens molding

28-01-2003

Johnson & Johnson Vision Care, Inc

US2003000028

Colorants for use in tinted contact lenses and methods for their production

02-01-2003

Johnson & Johnson Vision Care, Inc

USRE037558

Packaging arrangement for contact lenses

26-02-2002

Johnson & Johnson Vision Care, Inc

WO0216453A1

Polyacrylamide hydrogel and its use as an  endoprosthesis

26-02-2002

Contura S.A.

USRE037432

Automated apparatus and method for preparing contact lenses for inspection and packaging

06-11-2001

Johnson & Johnson Vision Care, Inc

US6241918

Process of manufacturing contact lenses in ambient environment

05-06-2001

Johnson & Johnson Vision Care, Inc

US6220845

Mold clamping and precure of a polymerizable hydrogel

24-04-2001

Johnson & Johnson Vision Care, Inc

US6207086

Method and apparatus for washing or hydration of ophthalmic devices

27-03-2001

Johnson & Johnson Vision Care, Inc

US6071112

Automated method and apparatus for single sided hydration of soft contact lenses in package carriers

06-06-2000

Johnson & Johnson Vision Care, Inc

US6071440

Contact lens production line pallet system

06-06-2000

Johnson & Johnson Vision Care, Inc

US6039899

Consolidated contact lens molding

21-03-2000

Johnson & Johnson Vision Care, Inc

USRE036302

Chamber for hydrating contact lenses

14-09-1999

Johnson & Johnson Vision Products, Inc

US5935492

Method and apparatus for demolding ophthalmic contact lenses

10-08-1999

Johnson & Johnson Vision Products, Inc

US5914074

Mold clamping and precure of a polymerizable hydrogel

22-06-1999

Johnson & Johnson Vision Products, Inc

US5849209

Mold material made with additives

15-12-1998

Johnson & Johnson Vision Products, Inc

US5850107

Mold separation method and apparatus

15-12-1998

Johnson & Johnson Vision Products, Inc

US5836323

Automated method and apparatus for hydrating soft contact lenses

17-11-1998

Johnson & Johnson Vision Products, Inc

US5837314

Method and apparatus for applying a surfactant to mold surfaces

17-11-1998

Johnson & Johnson Vision Products, Inc

US5804107

Consolidated contact lens molding

08-09-1998

Johnson & Johnson Vision Products, Inc

US5762081

Automated apparatus for hydrating soft contact lenses

09-06-1998

Johnson & Johnson Vision Products, Inc

US5756144

Medical instrument with a hydrophilic, low-friction coating and method of preparation

26-05-1998

Meadox Medicals, Inc., Oakland, NJ

US5753150

Low oxygen molding of soft contact lenses

19-05-1998

Johnson & Johnson Vision Products, Inc

US5706634

Contact lens transfer device

13-01-1998

Johnson & Johnson Vision Products, Inc

US5690866

Automated method for hydrating soft contact lenses

25-11-1997

Johnson & Johnson Vision Products, Inc

US5690865

Mold material with additives

25-11-1997

Johnson & Johnson Vision Products, Inc

US5675962

Automated apparatus and method for preparing contact lenses for inspection and packaging

14-10-1997

Johnson & Johnson Vision Products, Inc

US5658602

Method and apparatus for contact lens mold filling and assembly

19-08-1997

Johnson & Johnson Vision Products, Inc

US5656208

Method and apparatus for contact lens mold filling and assembly

12-08-1997

Johnson & Johnson Vision Products, Inc

US5649410

Post-hydration method and apparatus for transporting, inspecting and packaging contact lenses

22-07-1997

Johnson & Johnson Vision Products, Inc

US5639510

Method for applying a surfactant to mold surfaces

17-06-1997

Johnson & Johnson Vision Products, Inc

WO9720876

Rapid-foaming foam for prefabricared system building

12-06-1997

Rathor AG

US5620087

Printed label structure for packaging arrangements

15-04-1997

Johnson & Johnson Vision Products, Inc

US5618560

Controlled release erodible composition

08-04-1997

BM Research A/S

US5597519

Ultraviolet cycling oven for polymerization of contact lenses

28-01-1997

Johnson & Johnson Vision Products, Inc

US5578331

Automated apparatus for preparing contact lenses for inspection and packaging

26-11-1996

Johnson & Johnson Vision Products, Inc

US5558847

Process for recovering aluminium and fluorine from fluorine containing waste materials

24-09-1996

Wolff & Kaaber A/S

US5542978

Apparatus for applying a surfactant to mold surfaces

06-08-1996

Johnson & Johnson Vision Products, Inc

US5540410

Mold halves and molding assembly for making contact lenses

30-07-1996

Johnson & Johnson Vision Products, Inc

US5476111

Apparatus for hydrating soft contact lenses

19-12-1995

Johnson & Johnson Vision Products, Inc

US5416131

Article with a coating having friction-reducing properties in wet condition as well as a method for the production of such a coated article

16-05-1995

UnoPlast A/S

USD0358025

Contact lens package

09-05-1995

Johnson & Johnson Vision Products, Inc

WO9506405

Fishing equipment

09-03-1995

Carlsen Net A/S

US5226935

Air humidification apparatus

13-07-1993

Skandinavisk Miljo System A/S

US5108690:

Mat for supporting a person in an upright position and process for obtaining a resilient article having a static module which is stable over a long period

28-04-1993

Cellastic A/S

US5114240

Method and a device for preparing a mixture of a solid and a liquid component

19-05-1992

Wolff & Kaaber A/S

US5080839

Process for hydrating soft contact lenses

14-01-1992

Johnson & Johnson Vision Products, Inc

US5039459

Method of forming shaped hydrogel articles including contact lenses

13-08-1991

Johnson & Johnson Vision Products, Inc

WO9013355A1

Method and device for preparing a mixture of a solid and a liquid component

15-11-1990

Wolff & Kaaber A/S

WO9005162A1:

Article having a low-friction surface coating, Method and composition for preparimg said article,

17-05-1990

UnoPlast A/S

WO9003193A1

Bone cement

05-04-1990

Wolff & Kaaber A/S

US4910259:

Bone cement

20-02-1990

Wolff & Kaaber A/S

US4889664

Method of forming shaped hydrogel articles including contact lenses

26-12-1989

Johnson & Johnson Vision Products, Inc

WO8909066A1

Controlled release composition

05-10-1989

Bukh Meditec A/S 

US3440219

Polymerisation process

22-04-1989

Johns Manville Corp

US5888258

Grinding aid material, method of producing it, use of it, and abrasive material containing it

30-03-1989

Wolff & Kaaber A/S

US4680336

Method of forming shaped hydrogel articles

14-07-1987

Johnson & Johnson Vision Products, Inc

US4680336

Method of forming shaped hydrogel articles

14-07-1987

Vistakon, Inc

EP0064381B1

Soft contact lenses and manufacture thereof

16-02-1987

Mia-Lens Production A/S

US4640489

Mold for making contact lenses, either the male or female mold sections being relatively more flexible

03-02-1987

Mia-Lens Production A/S

USD281505

Molding frame for lenses

08-04-1986

Mia Lens Production A/S

US4565348

Mold for making contact lenses, the male mold member being more flexible than the female mold member

21-01-1986

Mia-Lens Production A/S

USD0281505

Molding frame for lenses

26-11-1985

 

US4495313

Preparation of hydrogel for soft contact lens with water displaceable boric acid ester

22-01-1985

Mia Lens Production A/S

US4376867

Chemical process

15-03-1983

None

US4291088

Foam products from furfuryl alcohol-amino-formaldehyde

12-09-1981

Koninklijke Emballage Industrie Van Leer BV

US4273887

Process for preparation of foams by condensation reactions

16-06-1981

Koninklijke Emballage Industrie Van Leer BV

US4258705

Magnetic system for use in sealing body openings

31-03-1981

Coloplast A/S

US4231369

Sealing material for ostomy devices

04-11-1980

Coloplast International A/S

US4132683

Process of preparing polyfuran foams

02-01-1979

Koninklijke Emballage Industrie Van Leer BV

US4118188

Process for improving the bulkiness or texturation of synthetic multifilament textile materials

02-10-1978

Ultrasona AG, Zurich, Switzerland

US4016111

Non-burning, class 1 rating, foams and a method of producing same

05-04-1977

Koninklijke Emballage Industrie Van Leer BV

US3975318

Polyfuran foams and a method of preparing same

17-08-1976

Wolff & Kaaber

US3975319

Polyfuran foams and a method of preparing same

17-04-1976

Wolff & Kaaber

US3919127

Polyfuran foams and a method of preparing same

11-11-1975

Wolff & Kaaber

US3637540

Polyurethanes from fatty acids and their production

25-02-1972

 

US3637539

Polyurethanes prepared from glyceride reaction products

25-01-1972

 

US3496123

Method for the production of highly porous or finely cellular polystyrene

22-04-1969

Johns Manville Corp

EP0072095A1

Production of sodium salicylate

16-02-1983

Jansen, Gert
Wolff, Per

WO8909066A1

Controlled release composition

05-10-1989

Bukh Meditec A/S

WO9104015A1

Controlled release composition

04-04-1991

Bukh Meditec A/S

WO9522962A1

Controlled release composition

31-08-1995

Bukh Meditec A/S

DE1729151A1

Verfahren zum Herstellen von Spritzgussartikeln aus Polyurethan

08-07-1971

Eggers-Lura,  Andrea Emilo Aldo Maria, 
Wolff & Kaaber

 

 

Patent library

More than 100 international patents list Chempilots staff as inventors or contributors on patents owned by our customers.