Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874420 | Herbicidal substituted triazines | Heinz-Jurgen Wroblowsky, Klaus Tietjen, Hans-Joachim Santel, Robert R. Schmidt, Harry Strang | 1989-10-17 |
| 4840661 | Sulphonyliso(thio)urea derivatives and herbicidal use thereof | Hans-Joachim Diehr, Christa Fest, Rolf Kristen, Klaus-Helmut Muller, Theodor Pfister +6 more | 1989-06-20 |
| 4832733 | 3-amino-2-cyano-acrylic acid ester herbicides | Hans-Joachim Santel, Robert R. Schmidt | 1989-05-23 |
| 4820337 | 1-(2-oxyaminosulphonylphenylsulphonyl)-3-triazinyl-ureas | Hans-Joachim Diehr, Christa Fest, Rolf Kirsten, Klaus-Helmut Muller, Theodor Pfister +5 more | 1989-04-11 |
| 4802910 | Herbicidal acylated sulphonylguanidines | Rolf Kirsten, Klaus-Helmut Muller, Theodor Pfister, Hans-Jochem Riebel, Hans-Joachim Santel +1 more | 1989-02-07 |