Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6273960 | Method of cleaning contact lenses using carbon dioxide and carbonic acid | Alok K. Kulshreshtha, Geoffrey R. Owen, Yusuf Ali | 2001-08-14 |
| 6171404 | Use of carbon dioxide and carbonic acid to clean contact lenses | Alok K. Kulshreshtha, Geoffrey R. Owen, Yusuf Ali | 2001-01-09 |
| 5909745 | Use of carbon dioxide and carbonic acid to clean contact lenses | Yusuf Ali, Alok K. Kulshreshtha | 1999-06-08 |
| 5591397 | Double redox system for disinfecting contact lenses | Ronald L. Schlitzer, N. L. Dassanayake | 1997-01-07 |
| 5462713 | Double redox system for disinfecting contact lenses | Ronald L. Schlitzer, N. L. Dassanayake | 1995-10-31 |
| 5037484 | Cleaning agent for optical surfaces | Kai C. Su, Leslie F. Stebbins | 1991-08-06 |
| 4921630 | Contact lens cleaning compositions containing an enzyme and a carboxy vinyl polymer | — | 1990-05-01 |
| 4839082 | Contact lens cleaning compositions containing a carboxy vinyl polymer | — | 1989-06-13 |
| 4792414 | Cleaning agent for optical surfaces | Kai C. Su, Leslie F. Stebbins | 1988-12-20 |
| 4670060 | Cleaning agent for optical surfaces | Kai C. Su, Leslie F. Stebbins | 1987-06-02 |
| 4613379 | Cleaning agent for optical surfaces | Kai C. Su, Leslie F. Stebbins | 1986-09-23 |
| 4493783 | Cleaning agent for optical surfaces | Kai C. Su, Leslie F. Stebbins | 1985-01-15 |