Hansjorg Hey
8Patents
5h-index
10Co-inventors
56Inventor score
Filing activity: Jun 6, 1974 → Dec 10, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4110372A | Process for the purification of carboxylic acids | Chemistry; Metallurgy | 13 | Expired |
| US4041049A | Process for the manufacture of cyclohexane-1,3-diones and 6-alkyl-3,4-dihydro-2-pyranones | Chemistry; Metallurgy | 12 | Expired |
| US4818347A | Process for the isolation of vinyl acetate | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4072660A | Process for the manufacture of resorcinols | Chemistry; Metallurgy | 10 | Expired |
| US4250336A | Process for the manufacture of resorcinols from .delta.-ketocarboxylic acid esters | Emerging Cross-Sectional Technologies | 5 | Expired |
| US3957792A | Process for preparing 2-ethyl-pyridine | Performing Operations; Transporting | 1 | Expired |
| US4041039A | Process for preparing 2-ethyl-pyridine | Performing Operations; Transporting | 0 | Expired |
| US4409400A | Process for the preparation of cyclohexane-1,3-dione from .delta.-ketohexanoic acid ester | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.