Patrick Chen

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Edison, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Balanced charge polymer and hydrophilic contact lens manufactured t...
- Patent number 5,391,669
- Issue date Feb 21, 1995
- Hydron Limited
- Jiri Sulc
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Balanced charge polymer and hydrophilic contact lens manufactured t...
- Patent number 5,270,415
- Issue date Dec 14, 1993
- Allergan Inc.
- Jiri Sulc
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of molding a colored contact lens
- Patent number 5,034,166
- Issue date Jul 23, 1991
- Allergan, Inc.
- David L. Rawlings
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL