Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840864 | New electrostatographic toners and developers containing new charge-control agents | Douglas E. Bugner, Peter S. Alexandrovich, Lawrence P. DeMejo, James H. Anderson | 1989-06-20 |
| 4834920 | New quaternary ammonium salts | Douglas E. Bugner, Peter S. Alexandrovich, Lawrence P. DeMejo, James H. Anderson | 1989-05-30 |
| 4834921 | Quaternary ammonium salts | Douglas E. Eugner, Peter S. Alexandrovich, Lawrence P. DeMejo | 1989-05-30 |
| 4812378 | Electrostatographic toners and developers containing charge-control agents | Douglas E. Bugner, Peter S. Alexandrovich, Lawrence P. DeMejo, James H. Anderson | 1989-03-14 |
| 4812381 | Electrostatographic toners and developers containing new charge-control agents | Douglas E. Bugner, Peter S. Alexandrovich, Lawrence P. DeMejo | 1989-03-14 |
| 4806284 | New quaternary ammonium salts | Douglas E. Bugner, Peter S. Alexandrovich, Lawrence P. De Mejo, James H. Anderson | 1989-02-21 |