Michael Huellmann
9Patents
4h-index
18Co-inventors
46Inventor score
Filing activity: Apr 18, 1989 → Jul 28, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5455352A | Preparation of N-(2-hydroxyethyl)-piperazine | Emerging Cross-Sectional Technologies | 84 | Expired |
| US5463020A | Preparation of polytetrahydrofuran or tetrahydrofuran/alkylene oxide copolymers | Chemistry; Metallurgy | 6 | Expired |
| US5410070A | Preparation of N-alkenylpyrrolidones | Chemistry; Metallurgy | 5 | Expired |
| US5336815A | Preparation of vinyl glycols | Chemistry; Metallurgy | 4 | Expired |
| US5120880A | Preparation of muscone, intermediates for this preparation and preparation of said intermediates | Chemistry; Metallurgy | 3 | Expired |
| US5081311A | Preparation of muscone, intermediates for this preparation and preparation of said intermediates | Chemistry; Metallurgy | 3 | Expired |
| US5359122A | Preparation of 3-arylacrylic acids and their derivatives | Chemistry; Metallurgy | 2 | Expired |
| US4965376A | 3,9-dihydroxynonyne and its derivatives protected at the 9-OH function | Emerging Cross-Sectional Technologies | 0 | Expired |
| US5068479A | Preparation of 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetra-hydronaphthalene | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.