Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885283 | Phosphinic acid derivatives | Michael J. Broadhurst, Balraj K. Handa, William Henry Johnson, Geoffrey Lawton | 1989-12-05 |
PM
Peter J. Machin
Overall (1989): #69,583 of 140,708Top 50%
1
Patents 1989