Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693740 | Aromatic polysulphones | Howard Matthew Colquhoun | 1997-12-02 |
| 4777300 | Aromatic ketone | Howard Matthew Colquhoun, James A. Daniels | 1988-10-11 |
| 4612399 | Purification of 4-fluoro-4'-hydroxybenzophenone | Howard Matthew Colquhoun | 1986-09-16 |
| T103703 | Production of aromatic polyketones | Howard Matthew Colquhoun | 1983-12-06 |
| 4201551 | Embrittlement additive for treating organic materials | Norman A. Lyshkow | 1980-05-06 |