Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4772715 | Isotelluroazolo[1,5-a]tellurazoles and processes for their preparation | Wolfgang H. H. Gunther | 1988-09-20 |
| 4677202 | Quaternized 2,1,4-benzoxatellurazinium and 2,1,4-naphthoxatellurazinium salt derivitives | Wolfgang H. H. Gunther, Roger Lok | 1987-06-30 |
| 4661438 | Quaternized tellurium salt fog inhibiting agents for silver halide photography | Wolfgang H. H. Gunther, Roger Lok | 1987-04-28 |