Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818440 | Novel polyether carboxylic acid derivatives, as well as their uses | Werner Schafer, Rolf Schafer, Johan G. Aalbers, Jacob K. Smid | 1989-04-04 |
| 4808239 | Method of cleaning contact lens using compositions containing polyether carboxylic acid surfactant | Rolf Schafer | 1989-02-28 |
| 4617186 | Sustained release drug delivery system utilizing bioadhesive polymers | Rolf Schafer | 1986-10-14 |
| 4599195 | Solution and method for removing protein, lipid, and calcium deposits from contact lenses | Rolf Schafer | 1986-07-08 |
| 4546123 | Polymer hydrogels adapted for use as soft contact lenses, and method of preparing same | Rolf Schafer | 1985-10-08 |
| 4362737 | Transdermal carrier materials | Rolf Schafer, Werner Schafer | 1982-12-07 |