Hans-Martin Hutmacher
10Patents
6h-index
19Co-inventors
55Inventor score
Filing activity: Apr 24, 1980 → Mar 23, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4730040A | Preparation of caprolactam | Chemistry; Metallurgy | 31 | Expired |
| US4777265A | Preparation of acrylates and methacrylates | Chemistry; Metallurgy | 25 | Expired |
| US4767856A | Preparation of caprolactam from 6-aminocaproic acid, esters and amides | Chemistry; Metallurgy | 17 | Expired |
| US4730041A | Preparation of .epsilon.-caprolactams | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4731445A | Preparation of epsilon-caprolactam | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4950429A | Preparation of 6-aminocaproic acid | Chemistry; Metallurgy | 8 | Expired |
| US4766237A | Preparation of 6-aminocaproates | Chemistry; Metallurgy | 6 | Expired |
| US4709072A | Joint preparation of ethylene cyanohydrin and its ethers | Chemistry; Metallurgy | 5 | Expired |
| US4315869A | Preparation of .alpha.,.beta.-unsaturated nitriles | Chemistry; Metallurgy | 3 | Expired |
| US4459236A | Preparation of 1-alkenyl isocyanates | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.