Otto-Christian Geyer

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Wetzlar, DE

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Patents Grantslast 30 patents

Information Patent Grant
Optically clear silicone compositions
- Patent number 5,077,335
- Issue date Dec 31, 1991
- Bayer Aktiengesellschaft
- Peter Schwabe
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Hydrophilic copolymers, the use thereof as biomedical materials and...
- Patent number 4,866,148
- Issue date Sep 12, 1989
- Bayer Aktiengesellschaft
- Otto-Christian Geyer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Optical contact objects
- Patent number 4,703,097
- Issue date Oct 27, 1987
- Bayer Aktiengesellschaft
- Frank Wingler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Use of polymer alloys based on cellulose esters in contact ophthalm...
- Patent number 4,533,397
- Issue date Aug 6, 1985
- Bayer Aktiengesellschaft
- Frank Wingler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Contact lenses of methyl methacrylate copolymers
- Patent number 4,384,097
- Issue date May 17, 1983
- Bayer Aktiengesellschaft
- Frank Wingler
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...