Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5235070 | Suppression of dust from solid aromatic anhydrides | Michael R. Green, Chang-Man Park | 1993-08-10 | $17,870,000 |
| 4946970 | Suppression of trimellitic anhydride dust | Michael R. Green, Chang-Man Park | 1990-08-07 | $18,604,000 |
| 4444956 | Process for preparation of Mannich condensation product | John G. Schaffhausen | 1984-04-24 | $30,061,000 |
| 4255160 | Flow improver for heavy petroleum products comprising alkenyl succinate diester | Peter G. Pappas | 1981-03-10 | $22,310,000 |