Inventor · Eckental, DE

Helmut Schickaneder

37Patents
7h-index
34Co-inventors
69Inventor score

Filing activity: Oct 18, 1983 → Jul 11, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US5047431A 1,1,2-triphenylbut-1-ene derivatives Emerging Cross-Sectional Technologies 74 Expired
US4816455A Crystalline, anhydrous sigma-form of 2-(4-(2-furoyl)-(2-piperazin)-1-yl)-4-amino-6,7-dimethoxy-quinazoline hydrochloride and a process for its preparation Human Necessities 64 Expired
US4973755A Stable solvent adducts of Z-1-(p-.beta.-dimethylaminoethoxy-phenyl)-1-(p-hydroxyphenyl)-2-phenyl-b ut-1-ene Human Necessities 31 Expired
US4954501A Piperazine substituted 6-phenyldihydro-3(2H)-pyridazinones, and pharmaceutical preparations containing these Chemistry; Metallurgy 28 Expired
US4810715A Imidazoyl-substituted thiomethylpyridine derivatives, method of administration thereof and medicaments containing them Chemistry; Metallurgy 16 Expired
US4921856A Dihydropyridazinone derivatives, a process for their preparation and pharmaceutical preparations containing these compounds Chemistry; Metallurgy 15 Expired
US8809549B2 Esters of bendamustine and related compounds, and medical use thereof Chemistry; Metallurgy 7 Active
US5021431A Imidazolyl alkyl guanidine derivatives, processes for their preparation and pharmaceutical preparations containing these compounds Chemistry; Metallurgy 6 Expired
US5663381A Process for preparing form 1 ranitidine hydrochloride Human Necessities 6 Expired
US4634700A 1,3-dioxolanyl derivatives, a process for their preparation, their use and pharmaceutical preparations containing these compounds Chemistry; Metallurgy 5 Expired
US5025016A Pyrimidine-thioalkyl pyridine derivatives, medicaments containing these compounds, and method of treatment Human Necessities 5 Expired
US4968808A Process for the preparation of nitroethene derivatives Chemistry; Metallurgy 4 Expired
US4912119A Imidazolylguanidine derivatives and compositions containing these compounds Chemistry; Metallurgy 4 Expired
US4659721A Alkanol derivatives, and pharmaceutical preparation containing these compounds Chemistry; Metallurgy 4 Expired
US4957920A Benzimidazoles, and pharmaceutical preparations containing these compounds Human Necessities 4 Expired
US4978773A Process for the preparation of 2,6-dichlorodiphenylaminoacetic acid derivatives Chemistry; Metallurgy 4 Expired
US6469213B1 Tramadol, salts thereof and process for their preparation Chemistry; Metallurgy 3 Expired
US5039675A Benzimidazoles and pharmaceutical preparations containing these compounds Human Necessities 3 Expired
US4656180A Diamine derivatives and pharmaceutical preparations containing these compounds Chemistry; Metallurgy 3 Expired
US4599346A Propan-2-ol derivatives, a process for their production and medicaments containing these compounds Chemistry; Metallurgy 3 Expired
US4578389A Quinazoline and medicaments containing these compounds Chemistry; Metallurgy 3 Expired
US4666921A Pyrazole derivatives, processes for their preparation and pharmaceutical preparations containing these compounds Chemistry; Metallurgy 2 Expired
US4600721A Pharmaceutical preparation Chemistry; Metallurgy 2 Expired
US4732986A Benzothiazole derivatives, processes for their preparation and pharmaceutical compositions containing these compounds Human Necessities 2 Expired
US4757080A 1,4-dihydropyridine derivatives Chemistry; Metallurgy 1 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.