Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5113016 | Manufacture of phthaloyl chlorides | — | 1992-05-12 |
| 5003105 | Preparation of 2-chloroterephthaloyl chloride | — | 1991-03-26 |
| 4990663 | Process for preparing halogenated aromatic amines | Yu-Wei Chang | 1991-02-05 |
| 4212824 | Hydrogenation catalyst with improved metallic distribution, its preparation and use for the reduction of aromatic nitro compounds | — | 1980-07-15 |