Inventor · Wuppertal, DE

Erwin Bischoff

50Patents
13h-index
87Co-inventors
87Inventor score

Filing activity: Nov 27, 1985 → Sep 29, 2009

Most-cited inventions

PatentTitleAreaCited byStatus
US7173037B2 Carbamate-substituted pyrazolopyridines Human Necessities 122 Expired
US6362178B1 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors Chemistry; Metallurgy 73 Expired
US5721238A 2,8-disubstituted quinazolinones Chemistry; Metallurgy 44 Expired
US6174884A 1,5-dihydro-pyrazolo[34-D]-pyrimidinone derivatives Human Necessities 39 Expired
US6458796B1 Dihydro-[1,2,3]triazolo-[4,5-d]pyrimidin-7-one Human Necessities 23 Expired
US7135474B2 Derivatives of 2-(1-benzyl-1H-pyrazolo(3,4-B)pyridine-3-yl)-5(-4-pyridinyl)l-4-pyrimidinamines and the use thereof as quanylate cyclase stimulators Human Necessities 22 Expired
US5821222A Cyclic depsipeptides having 18 ring atoms for combating endoparasites Chemistry; Metallurgy 16 Expired
US5861396A Purin-6-one derivatives Human Necessities 16 Expired
US5861404A 2,9-disubstituted purin-6-ones Human Necessities 15 Expired
US5223517A Heterocyclically substituted cycloalkano[b]-indolesulphonamides Chemistry; Metallurgy 15 Expired
US5185348A Phenylsulphonamide substituted pyridinealkene- and -aminooxyalkanecarboxylic acid derivatives Chemistry; Metallurgy 13 Expired
US6566360B1 2-phenyl substituted imidatriazinones as phosphodiesterase inhibitors Chemistry; Metallurgy 13 Expired
US5155121A Phenylsulphonamide substituted pyridinealkene- and aminooxyalkanecarboxylic acid derivatives Chemistry; Metallurgy 13 Expired
US6890922B2 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors Chemistry; Metallurgy 10 Expired
US6803365B2 Imidazo[1,3,5]triazinones and the use thereof Human Necessities 9 Expired
US7696206B2 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors Chemistry; Metallurgy 9 Active
US7122540B2 2-Phenyl substituted imidazotriazinones as phosphodiesterase inhibitors Chemistry; Metallurgy 9 Expired
US5185326A Efomycins A, E and G as antiinflammatory agents Human Necessities 8 Expired
US6476029B1 7-alkyl- and cycloalkyl-substituted imidazotriazinones Chemistry; Metallurgy 8 Expired
US5866571A 9-substituted 2-(2-n-alkoxyphenyl)-purin-6-ones Chemistry; Metallurgy 7 Expired
US7098207B2 Imidazotriazinones and the use thereof Human Necessities 7 Expired
US5624897A Cyclic depsipeptides having 18 ring atoms, and their use for combating endoparasites Human Necessities 7 Expired
US7314871B2 2-phenyl substituted imidazotriazinones as phosphodiesterase inhibitors, for treatment of hypertension Chemistry; Metallurgy 5 Expired
US5204374A Cycloalkano(b)dihydroindoles and -indolesulphonamides substituted by heterocycles Chemistry; Metallurgy 5 Expired
US4927810A Efomycin G and it's use as yield promoter in animals Emerging Cross-Sectional Technologies 3 Expired

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