Gerd Kleefeld
29Patents
7h-index
37Co-inventors
69Inventor score
Filing activity: Feb 15, 1989 → May 23, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5094681A | Herbicidal 5H-furan-2-one derivatives | Chemistry; Metallurgy | 52 | Expired |
| US5207817A | Herbicidal 5H-furan-2-one derivatives | Chemistry; Metallurgy | 37 | Expired |
| US5120734A | Fungicidal pyrid-2-yl-amino acetic acid esters | Chemistry; Metallurgy | 32 | Expired |
| US6274613A | Cyclic imines as pesticides | Human Necessities | 20 | Expired |
| US6399771B1 | Cyclic imines as pesticides | Human Necessities | 18 | Expired |
| US5036085A | Pesticidal thiadiazole-substituted acrylic acid esters and intermediates therefor | Chemistry; Metallurgy | 12 | Expired |
| US5114959A | Fungicidal substituted acrylic esters | Chemistry; Metallurgy | 12 | Expired |
| US5008275A | Pesticidal pyridyl-substituted acrylic ester compounds | Chemistry; Metallurgy | 6 | Expired |
| US4968709A | Fungicidal 2-thiazolyloxy-thio- or amino-3-substituted acrylic acid esters | Chemistry; Metallurgy | 5 | Expired |
| US5322949A | Pesticidal thiadiazole-substituted acrylic acid esters and intermediates therefor | Chemistry; Metallurgy | 4 | Expired |
| US5166165A | Fungicidal agents based on heterocyclically substituted sulphones | Chemistry; Metallurgy | 4 | Expired |
| US5095029A | Fungicidal 1,3,5-triaryl-2-pyrazolines | Chemistry; Metallurgy | 3 | Expired |
| US6770595B2 | Cyclic imines as pesticides | Human Necessities | 3 | Expired |
| US6051589A | Diphenyloxazoline derivatives | Human Necessities | 2 | Expired |
| US5310919A | Pesticidal pyridyl-substituted acrylic esters | Chemistry; Metallurgy | 2 | Expired |
| US5120755A | Fungicidal substituted acrylic acid esters | Chemistry; Metallurgy | 2 | Expired |
| US5189175A | Pesticidal thiadiazole-substituted acrylic acid esters and intermediates therefor | Chemistry; Metallurgy | 1 | Expired |
| US5883091A | 1,3,4-oxadiazine derivatives having a pesticide effect | Human Necessities | 1 | Expired |
| US5254693A | Fungicidal substituted acrylic esters | Chemistry; Metallurgy | 1 | Expired |
| US5412100A | Fungicidal substituted acrylic esters | Chemistry; Metallurgy | 1 | Expired |
| US6335325B1 | Acylated 4-aminopyridine derivatives as pesticides and fungicides | Chemistry; Metallurgy | 1 | Expired |
| US5266586A | Fungicidal substituted triazoles | Chemistry; Metallurgy | 0 | Expired |
| US7122506B2 | Cyclic imines as pesticides | Human Necessities | 0 | Expired |
| US4962118A | Fungicidal substituted triazoles | Chemistry; Metallurgy | 0 | Expired |
| US6013804A | 1,3,4-oxadiazolin-2-ones and their use as pesticides | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.