Hanspeter Hansen
22Patents
4h-index
22Co-inventors
63Inventor score
Filing activity: Jun 20, 1974 → Feb 17, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4448960A | Dichloroacetamides, herbicides containing acetanilides as herbicidal active ingredients and the dichloroacetamides as antagonists, and the use of these herbicides in controlling undesired plant growth | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4219494A | O-Aminosulfonylglycolic anilides | Chemistry; Metallurgy | 7 | Expired |
| US4411691A | 1-Substituted phenyl-pyridazone herbicides | Chemistry; Metallurgy | 5 | Expired |
| US4272282A | Herbicidal agents based on acetanilides and dichloroacetamides | Chemistry; Metallurgy | 5 | Expired |
| US4077797A | 1-Polyfluoroalkoxyphenyl-4-substituted-5-halopyridazones-6 and herbicidal uses thereof | Chemistry; Metallurgy | 4 | Expired |
| US4451378A | Isolation of 3-isopropyl-2,1,3-benzothiadiazin-4-one-2,2-dioxide from waste water from its preparation | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4565565A | Dichloroacetamides, herbicides containing acetanilides as herbicidal active ingredients and the dichloroacetamides as antagonists, and the use of these herbicides in controlling undesired plant growth | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4124591A | Isoxazolylmethylthiol carbamates | Chemistry; Metallurgy | 3 | Expired |
| US4025544A | O-alkylsulfonylglycolic anilides | Chemistry; Metallurgy | 2 | Expired |
| US3956388A | N-methylol ethers of glycollic anilides | Chemistry; Metallurgy | 1 | Expired |
| US4009192A | O-aminosulfonylglycolic amides | Chemistry; Metallurgy | 1 | Expired |
| US4249933A | Herbicidal agents containing a thiolcarbamate | Chemistry; Metallurgy | 1 | Expired |
| US3935190A | Sulfites of aliphatic glycolic amides | Chemistry; Metallurgy | 1 | Expired |
| US4746443A | Bentazon containing wastewater treatment | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4249935A | Herbicidal agents | Human Necessities | 1 | Expired |
| US5753495A | Process for the preparation of (L)-2-chloropropionic acid and its salts using lipase from pseudomonas | Chemistry; Metallurgy | 0 | Expired |
| US4001292A | Sulfites of aromatic glycolic amides | Chemistry; Metallurgy | 0 | Expired |
| US4001217A | Azetidinyl carbothiolates | Chemistry; Metallurgy | 0 | Expired |
| US4021222A | Thiol carbamates | Chemistry; Metallurgy | 0 | Expired |
| US5795983A | Preparation of ammonium salts of 3-isopropyl-2, 1, 3-benzothia-diazin-4-one 2,2-dioxide | Chemistry; Metallurgy | 0 | Expired |
| US5763659A | Preparation of optically active 2-halopropionic acids | Chemistry; Metallurgy | 0 | Expired |
| US6252069A | Method for the production of 3-isopropyl-1H-2, 1,3-benzothiadiazine-4 (3H)-one-2,2-dioxide | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.