Bernhard Beitzke
11Patents
3h-index
18Co-inventors
53Inventor score
Filing activity: Jun 11, 1985 → Jul 24, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5536879A | Process for preparing optically active amino alcohols | Chemistry; Metallurgy | 9 | Expired |
| US4668788A | 5,5-dichloro-4,5-dihydro-6-hydroxy-2-trichloromethylpyrimidin-4-one | Chemistry; Metallurgy | 5 | Expired |
| US5401869A | Process for the preparation of aminomethylene compounds | Chemistry; Metallurgy | 4 | Expired |
| US4618698A | Process for the preparation of a mixture of an optionally substituted cinnamic acid ester and an optionally substituted .beta.-alkoxy-.beta.-phenyl-propionic acid ester, and a process for the preparation of optionally substituted cinnamic acid | Chemistry; Metallurgy | 3 | Expired |
| US4760209A | Process for preparing 3,5-dichloro-.alpha.-methylstyrene | Chemistry; Metallurgy | 2 | Expired |
| US5399773A | Process for the preparation of nitrophenyl alkyl ethers | Chemistry; Metallurgy | 1 | Expired |
| US5672708A | Process for the preparation of N-arylaminoacrylic acid derivatives and the use of N-arylaminoacrylic acid derivatives thus prepared for the preparation of 4-quinolone-3-carboxylic acid derivatives | Chemistry; Metallurgy | 1 | Expired |
| US6002041A | Process for preparing di-C.sub.1 - C.sub.4 -alkyl 5-nitro-isophthalates | Chemistry; Metallurgy | 0 | Expired |
| US4613692A | Process for the preparation of cinnamic acids which are optionally substituted in the nucleus | Chemistry; Metallurgy | 0 | Expired |
| US5922874A | Process for preparing N-aryl-N'-alkyl-piperazines | Chemistry; Metallurgy | 0 | Expired |
| US5859298A | Process for the preparation of 2-halogeno-4,5-difluorobenzoyl fluorides | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.