Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4931487 | Chain extenders for polyurethanes | Ralph D. Priester, Jr., Debra H. Stutts | 1990-06-05 |
| 4735711 | Novel collectors for the selective froth flotation of mineral sulfides | Richard R. Klimpel, Robert D. Hansen | 1988-04-05 |
| 4732668 | Novel collectors for the selective froth flotation of mineral sulfides | Richard R. Klimpel, Robert D. Hansen | 1988-03-22 |
| 4328373 | Method of preparing aldehydes | — | 1982-05-04 |
| 4218383 | Method of producing maleic anhydride | Hans R. Friedli, Milton S. Wing | 1980-08-19 |
| 4206084 | Catalyst for producing maleic anhydride | Hans R. Friedli, Milton S. Wing | 1980-06-03 |