Chung-Heng Cheng

Person

San Jose, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Methods and compositions for topical delivery of retinoic acid
- Patent number 5,955,109
- Issue date Sep 21, 1999
- Advanced Polymer Systems, Inc.
- Richard Won
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Methods and compositions for topical delivery of benzoyl peroxide
- Patent number 5,879,716
- Issue date Mar 9, 1999
- Advanced Polymer Systems, Inc.
- Martin A. Katz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Methods and compositions for flavoring orally-delivered products
- Patent number 5,458,890
- Issue date Oct 17, 1995
- Advanced Polymer Systems, Inc.
- John H. Williford
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Fabric impregnated with functional substances for controlled release
- Patent number 5,156,843
- Issue date Oct 20, 1992
- Advanced Polymer Systems, Inc.
- Helen C. Leong
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Porous particles in preparations involving immiscible phases
- Patent number 5,135,740
- Issue date Aug 4, 1992
- Advanced Polymer Systems, Inc.
- Martin Katz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Clinical and personal care articles enhanced by lubricants and adju...
- Patent number 5,073,365
- Issue date Dec 17, 1991
- Advanced Polymer Systems
- Martin Katz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Perfluoro (Imidoylamidine) diamidines
- Patent number 4,567,301
- Issue date Jan 28, 1986
- The United States of America as represented by the Administrator, National Ae...
- Robert W. Rosser
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparing perfluorotriazine elastomers and precursors t...
- Patent number 4,434,106
- Issue date Feb 28, 1984
- The United States of America as represented by the administrator of the Natio...
- Robert W. Rosser
- C07 - ORGANIC CHEMISTRY

Chung-Heng Cheng

Person

Patents Grantslast 30 patents

Methods and compositions for topical delivery of retinoic acid

Methods and compositions for topical delivery of benzoyl peroxide

Methods and compositions for flavoring orally-delivered products

Fabric impregnated with functional substances for controlled release

Porous particles in preparations involving immiscible phases

Clinical and personal care articles enhanced by lubricants and adju...

Perfluoro (Imidoylamidine) diamidines

Process for preparing perfluorotriazine elastomers and precursors t...