Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863507 | Herbicidal 4-trifluoromethyl-4-nitrodiphenyl ethers | Colin Swithenbank | 1989-09-05 |
| 4795825 | Herbicidal 4-trifluoro-methyl-4 onitrodiphenyl ethers | Colin Swithenbank | 1989-01-03 |