Clemens Rufer
21Patents
7h-index
17Co-inventors
62Inventor score
Filing activity: Sep 11, 1972 → Sep 6, 1983
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3960949A | 1,2-Biguanides | Chemistry; Metallurgy | 80 | Expired |
| US4407823A | Novel phenylacetic acid derivatives | Chemistry; Metallurgy | 40 | Expired |
| US4503049A | Diphosphonic acid derivatives and pharmaceutical preparations containing them | Chemistry; Metallurgy | 22 | Expired |
| US4244960A | Indanyl derivatives and their use | Chemistry; Metallurgy | 15 | Expired |
| US4375479A | Indanyl derivatives and use | Human Necessities | 12 | Expired |
| US4473560A | Diphosphonic acid derivatives and pharmaceutical preparations containing them | Chemistry; Metallurgy | 11 | Expired |
| US3956295A | Carbazole derivatives | Human Necessities | 9 | Expired |
| US4057640A | 5,6,7,8:Tetrahydrocarbazole-1-carboxylic acid derivatives | Human Necessities | 6 | Expired |
| US4645762A | Diphosphonic acid derivatives and pharmaceutical preparations containing same | Chemistry; Metallurgy | 6 | Expired |
| US3962471A | Indolylacetylamino acid derivatives, process for their preparation, and pharmaceutical compositions | Chemistry; Metallurgy | 4 | Expired |
| US4021450A | Thiophene derivatives and their preparation | Chemistry; Metallurgy | 4 | Expired |
| US3992374A | Amino-substituted nitroimidazolyl-methyleneaminoimidazolidinones | Chemistry; Metallurgy | 4 | Expired |
| US4411910A | Benzofuran derivatives and their pharmaceutical use | Chemistry; Metallurgy | 4 | Expired |
| US4031236A | Novel thiophene derivatives and their preparation | Chemistry; Metallurgy | 3 | Expired |
| US3962453A | Novel pyrazolyloxyacetic acid derivatives and process for the preparation thereof | Human Necessities | 3 | Expired |
| US3952007A | Processes for preparing 5-nitro-1-methyl-2-(2-dialkylaminovinyl)-imidazole and 5-nitro-1-methyl-2-imidazolyl carboxaldehyde | Chemistry; Metallurgy | 3 | Expired |
| US4053472A | 2-(5-Nitro-2-imidazolyl)-benzimidazoles | Chemistry; Metallurgy | 3 | Expired |
| US4038410A | Nitroimidazole derivatives and process for the preparation thereof | Chemistry; Metallurgy | 2 | Expired |
| US3966732A | Nitroimidazolyl pyrimidines | Chemistry; Metallurgy | 0 | Expired |
| US4058619A | Thiophene derivatives having antilipolytic activity | Chemistry; Metallurgy | 0 | Expired |
| US4555406A | Indanyl derivatives, their preparation and use | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.