Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879394 | Reaction of olefins with maleic anhydride | Herbert E. Fried | 1989-11-07 |
| 4825009 | Preparation of nonionic surfactants | — | 1989-04-25 |
CE
Charles L. Edwards
Overall (1989): #30,180 of 140,708Top 25%
2
Patents 1989