Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286876 | Process for obtaining 1-vinyl-3(E)-ethylidene pyrrolidone | Philip F. Wolf | 1994-02-15 |
| 5286826 | Process for making highly crosslinked polyvinylpyrrolidone having a low swell volume | Jenn S. Shih | 1994-02-15 |
| 5280049 | Molded cellular crosslinked vinyl lactam polymer gel and method of preparation | Philip F. Wolf | 1994-01-18 |
| 5274120 | 1-vinyl-3(E)-ethylidene pyrrolidone | Philip F. Wolf | 1993-12-28 |
| 5239053 | Purification of vinyl lactam polymers | William L. Mandella, Terry E. Smith, Robert B. Login, Paul D. Taylor | 1993-08-24 |