Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871634 | Electrophotographic elements using hydroxy functionalized arylamine compounds | John F. Yanus, Dale S. Renfer, Richard L. Schank, Beng S. Ong | 1989-10-03 |
| 4818650 | Arylamine containing polyhydroxy ether resins and system utilizing arylamine containing polyhydroxyl ether resins | Dale S. Renfer, John F. Yanus, Leon A. Teuscher | 1989-04-04 |
| 4806443 | Polyarylamine compounds and systems utilizing polyarylamine compounds | John F. Yanus, John W. Spiewak, Dale S. Renfer | 1989-02-21 |
| 4806444 | Arylamine polymers and systems utilizing arylamine polymers | John F. Yanus, John W. Spiewak, Dale S. Renfer | 1989-02-21 |
| 4801517 | Polyarylamine compounds and systems utilizing polyarylamine compounds | Jean M. J. Frechet, Sylvie Gauthier, Rafik O. Loutfy, Dasarao K. Murti, John W. Spiewak | 1989-01-31 |