Stephan Kretz
13Patents
3h-index
23Co-inventors
56Inventor score
Filing activity: May 13, 1999 → Dec 18, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7833508B2 | Reaction vessel and process for its use | Chemistry; Metallurgy | 8 | Active |
| US8008530B2 | Process for preparing methyl mercaptan | Chemistry; Metallurgy | 7 | Active |
| US8546601B2 | Storage-stable 2-hydroxy-4-(methylthio)butyronitrile | Chemistry; Metallurgy | 3 | Active |
| US8624066B2 | Process for preparing methylmercaptopropionaldehyde | Chemistry; Metallurgy | 2 | Active |
| US9133113B2 | Method for the production of 2-hydroxy-4-(methylthio)butyronitrile from 3-(methylthio)propanal and hydrogen cyanide | Chemistry; Metallurgy | 2 | Active |
| US6239294A | Process to produce .alpha.-tocopherol-acetate | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8729288B2 | Method for the production of 2-hydroxy-4-(methylthio)butyronitrile from 3-(methylthio)propanal and hydrogen cyanide | Chemistry; Metallurgy | 2 | Active |
| US9206121B2 | Method for the production of D,L-methionine | Chemistry; Metallurgy | 1 | Active |
| US6265617A | Process for the preparation of 3,5,5-trimethylcyclohexa-3-en-1-one (.beta.-isophorone) by isomerization of 3,5,5- trimethylcyclohexa-2-en-1-one (.alpha.-isophorone) | Chemistry; Metallurgy | 1 | Expired |
| US8759592B2 | Process for preparing methylmercaptopropionaldehyde | Chemistry; Metallurgy | 1 | Active |
| US6605746B2 | Process for the preparation of 6-methylheptanone | Chemistry; Metallurgy | 1 | Expired |
| US9809535B2 | Process for the preparation of alkyl mercaptans | Chemistry; Metallurgy | 0 | Active |
| US6566559B2 | Process for the production of isopropenyl methyl ether | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.