Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981487 | Colored hydrogel objects and their production-containing a water-insoluble opaquing agent | — | 1991-01-01 |
| 4361689 | Cross-linked hydrophilic polymers | Pravin G. Patel | 1982-11-30 |