Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5491091 | Contact lens disinfecting system | Helmut Singer | 1996-02-13 |
| 5316700 | Method and apparatus for removing excess lens forming material | Paul J. Soye | 1994-05-31 |
| RE33477 | Ultraviolet absorbing hydrophilic corneal contact lenses | — | 1990-12-04 |
| 4963159 | Hydrophilic colored contact lens | Kenneth W. Narducy, Richard L. Jahnke | 1990-10-16 |
| 4857072 | Hydrophilic colored contact lenses | Kenneth W. Narducy, Richard L. Jahnke | 1989-08-15 |
| 4668240 | Pigment colored contact lenses and method for making same | — | 1987-05-26 |
| 4549794 | Hydrophilic bifocal contact lens | Malcolm G. Townsley | 1985-10-29 |
| RE31422 | Hydrophilic polymers and contact lenses of high water content | Chah M. Shen | 1983-10-18 |
| 4405773 | Hydrophylic contact lenses and methods for making same | Chah M. Shen | 1983-09-20 |
| 4390676 | Ultraviolet absorbing lenses | — | 1983-06-28 |
| 4312725 | Contact lenses of high gas permeability and method | Chah M. Shen | 1982-01-26 |
| 4304895 | Ultraviolet absorbing corneal contact lenses | — | 1981-12-08 |
| 4228269 | Contact lenses of high gas permeability | Chah M. Shen | 1980-10-14 |
| RE30368 | Gas-permeable lens | Chah M. Shen | 1980-08-12 |
| 4182802 | Hydrophilic polymers and contact lenses of high water content | Chah M. Shen | 1980-01-08 |