Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891441 | Process for the preparation of polymeric tertiary aralkyl isocyanates from 1,3- or 1,4-bis(1-chloro-1-methylethyl)benzene | — | 1990-01-02 |
| 4556702 | Oligomers and homopolymers of meta- or para-isopropenyl-.alpha.,.alpha.-dimethylbenzylisocyanate | — | 1985-12-03 |
| 4429096 | Quaternary amine carbamate or urea compounds based on isopropenyl-.alpha.,.alpha.-dimethylbenzyl isocyanate | — | 1984-01-31 |
| 4399073 | Preparation of tertiary alkyl isocyanates | — | 1983-08-16 |
| 4399074 | Preparation of tertiary alkyl isocyanates | — | 1983-08-16 |
| 4374987 | Process for the preparation of high purity methotrexate and derivatives thereof | Balwant Singh | 1983-02-22 |