Martin Schäfer
50Patents
9h-index
96Co-inventors
81Inventor score
Filing activity: Aug 23, 1996 → Feb 17, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6906222B2 | Preparation for production of formic acid formates | Chemistry; Metallurgy | 35 | Expired |
| US6677495B1 | Oligomer mixtures derived from cyclopentene; method for the production and use thereof | Chemistry; Metallurgy | 22 | Expired |
| US6951628B2 | Method for producing a scattered radiation grid or collimator | Performing Operations; Transporting | 15 | Expired |
| US6723882B2 | Preparation of dialkyl ketones | Performing Operations; Transporting | 13 | Expired |
| US9670782B2 | Method for creating a blade for a flow engine and blade for a flow force engine | Emerging Cross-Sectional Technologies | 12 | Active |
| US6916954B2 | Catalyst system and method for carbonylation | Performing Operations; Transporting | 12 | Expired |
| US9252642B2 | Electrical machine | Electricity | 11 | Active |
| US9358729B2 | Method for selective laser sintering and system for selective laser sintering suitable for said method | Emerging Cross-Sectional Technologies | 9 | Active |
| US6844463B2 | Method for the carbonylation of pentenoic acid and its derivatives thereof | Chemistry; Metallurgy | 9 | Expired |
| US6346640B1 | Method for producing cyanovaleric acid or esters thereof | Chemistry; Metallurgy | 6 | Expired |
| US8785540B2 | Vinyl ester copolymer dispersions, their preparation and use | Chemistry; Metallurgy | 5 | Active |
| US5866716A | Process for Selectively preparing carboxylic acids by carbonylation of olefins | Chemistry; Metallurgy | 5 | Expired |
| US5705683A | Carbonylation of olefins | Chemistry; Metallurgy | 4 | Expired |
| US5952533A | Method of producing 1,6-hexane diol from epoxybutadiene | Chemistry; Metallurgy | 3 | Expired |
| US5962700A | Butyrolactone-preparation process | Chemistry; Metallurgy | 3 | Expired |
| US8492584B2 | Process and apparatus for oxidizing organic compounds | Emerging Cross-Sectional Technologies | 3 | Active |
| US8835683B2 | Process for preparing formic acid | Chemistry; Metallurgy | 1 | Active |
| US6676907B1 | Arrangement for generating a hydrogen-containing gas | Chemistry; Metallurgy | 1 | Expired |
| US6538139B1 | Preparation of pyrrole and pyridine | Chemistry; Metallurgy | 1 | Expired |
| US8741404B2 | Packaging for lipophilic materials | Emerging Cross-Sectional Technologies | 1 | Active |
| US9428438B2 | Process for preparing formic acid | Chemistry; Metallurgy | 1 | Active |
| US8957244B2 | Process for preparing methyl formate by reaction of methanol with carbon monoxide in the presence of a catalyst system comprising alkali metal formate and alkali metal alkoxide | Chemistry; Metallurgy | 1 | Active |
| US6689914B2 | Preparation of amines | Chemistry; Metallurgy | 1 | Expired |
| US8889905B2 | Process for preparing formic acid | Chemistry; Metallurgy | 1 | Active |
| US8791297B2 | Process for preparing formic acid by reaction of carbon dioxide with hydrogen | Chemistry; Metallurgy | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.