Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5599534 | Reversible gel-forming composition for sustained delivery of bio-affecting substances, and method of use | Cara Baustian | 1997-02-04 |
| 5296228 | Compositions for controlled delivery of pharmaceutical compounds | Nienyuan J. Chang | 1994-03-22 |
| 5276044 | Leukotriene receptor antagonist and antihistamine complex pharmaceutical compositions | Gyorgy F. Ambrus, David F. Woodward | 1994-01-04 |
| 5252318 | Reversible gelation compositions and methods of use | Abhay M. Joshi, Shulin Ding | 1993-10-12 |
| 4968507 | Controlled porosity osmotic pump | Gaylen M. Zentner, Gerald S. Rork | 1990-11-06 |
| 4851228 | Multiparticulate controlled porosity osmotic | Gaylen M. Zentner, Gerald S. Rork | 1989-07-25 |
| 4780319 | Organic acids as catalysts for the erosion of polymers | Gaylen M. Zentner, Stefano A. Pogany, Cheryl Ringeisen | 1988-10-25 |
| 4489056 | Acid anhydrides as rate controlling agent for the erosion of polymers which latter polymers have beneficial substances dispersed throughout their matrix or where the polymer matrix surrounds the beneficial substance | Takeru Higuchi | 1984-12-18 |
| 4475916 | Osmotic drug delivery system | — | 1984-10-09 |