Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885316 | Substituted 5-amidotetrazoles as blowing agents in the production of cellular thermoplastic or rubber materials | Steven A. Manke | 1989-12-05 |
| 4871861 | Substituted 5-amidotetrazoles | Steven A. Manke | 1989-10-03 |
| 4812896 | Metal electronic package sealed with thermoplastic having a grafted metal deactivator and antioxidant | William W. C. Hart, Edward F. Smith, III, Steven D. Phillips, Bonnie B. Sandel, David F. Gavin | 1989-03-14 |
| 4800232 | Process for producing triaminoguanidine nitrate and the high melting point product so produced | Steven A. Manke | 1989-01-24 |