Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4806443 | Polyarylamine compounds and systems utilizing polyarylamine compounds | John F. Yanus, Dale S. Renfer, William W. Limburg | 1989-02-21 |
| 4806444 | Arylamine polymers and systems utilizing arylamine polymers | John F. Yanus, Dale S. Renfer, William W. Limburg | 1989-02-21 |
| 4801517 | Polyarylamine compounds and systems utilizing polyarylamine compounds | Jean M. J. Frechet, Sylvie Gauthier, William W. Limburg, Rafik O. Loutfy, Dasarao K. Murti | 1989-01-31 |