Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE33478 | Pyridyl(oxy/thio)phenoxy compounds herbicidal compositions and methods | Howard Johnston | 1990-12-11 |
| 4851539 | 2,3-Difluoropyridine and 3-fluoro-2-pyridinyloxyphenol compounds | Howard Johnston | 1989-07-25 |
| 4753673 | Trifluoromethyl pyridinyloxyphenoxy and pyridinylthiophenoxy propanoic acids and propanols and derivatives thereof and methods of herbicidal use | Howard Johnston | 1988-06-28 |
| 4678509 | Certain pyridyloxy or thio-phenoxy-propanoic acids or salts thereof useful as herbicides | Howard Johnston | 1987-07-07 |
| 4670045 | Fungicidal control employing ester derivatives of 4,6-disubstituted 2-pyridinols | Robert J. Ehr, Helen K. Tobol | 1987-06-02 |
| 4628099 | Trifluoromethyl pyridinyloxyphenoxy propanoic acid chlorides | Howard Johnston | 1986-12-09 |
| 4565568 | Pyridyl(oxy/thio)phenoxy compounds, herbicidal compositions and methods | Howard Johnston | 1986-01-21 |
| 4551170 | Herbicidal trifluoromethyl pyridinyloxyphenoxy and pyridinylthiophenoxy propanols and derivatives thereof | Howard Johnston | 1985-11-05 |
| 4523017 | Preparation of trifluoromethyl pyridinyloxyphenoxy propanoic acids and propanols and derivatives thereof | Howard Johnston | 1985-06-11 |
| 4491468 | Herbicidal trifluoromethyl pyridinyloxyphenoxy and pyridinylthiophenoxy propanenitriles and derivatives thereof | Howard Johnston | 1985-01-01 |
| 4479001 | Trifluoromethyl pyridinylthiophenoxy propanoic acids and propanols and derivatives thereof | Howard Johnston | 1984-10-23 |
| 4236912 | Quinolinyloxyphenoxy and quinolyinylthiophenoxy alkanoic acids and derivatives thereof and methods of herbicidal use | Howard Johnston, Jon S. Claus | 1980-12-02 |