Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871634 | Electrophotographic elements using hydroxy functionalized arylamine compounds | William W. Limburg, 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 | William W. Limburg, Dale S. Renfer, Leon A. Teuscher | 1989-04-04 |
| 4806443 | Polyarylamine compounds and systems utilizing polyarylamine compounds | John W. Spiewak, Dale S. Renfer, William W. Limburg | 1989-02-21 |
| 4806444 | Arylamine polymers and systems utilizing arylamine polymers | John W. Spiewak, Dale S. Renfer, William W. Limburg | 1989-02-21 |