Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5196045 | Substituted pyridine herbicides | Len F. Lee | 1993-03-23 |
| 5019153 | Substituted pyridine herbicides | Len F. Lee | 1991-05-28 |
| 4936905 | Substituted 2,6-substituted pyridine compounds having herbicidal activity | Maria L. Miller, Len F. Lee | 1990-06-26 |
| 4885026 | Certain 3-amino-5-carboxy (or thio carboxy) pyridine herbicides | Len F. Lee | 1989-12-05 |
| 4789395 | 5-sulfur substituted pyridine monocarboxylic herbicides | Len F. Lee, Kerry L. Spear | 1988-12-06 |