Inventor · Wuppertal, DE

Siegfried Zaiss

25Patents
8h-index
50Co-inventors
74Inventor score

Filing activity: Apr 4, 1991 → Nov 17, 2005

Most-cited inventions

PatentTitleAreaCited byStatus
US5407948A Substituted mono- and bipyridylmethylpyridones Human Necessities 56 Expired
US5356911A Substituted biphenylpyridones Human Necessities 46 Expired
US5395840A Heterocyclically substituted phenyl-cyclohexane-carboxylic acid derivatives Human Necessities 36 Expired
US7776922B2 Substituted [(phenylethanoyl)amino]benzamides Chemistry; Metallurgy 12 Active
US5527809A Substituted imidazo[4,5-b]pyridines and benzimidazoles Chemistry; Metallurgy 12 Expired
US5234935A N-alkylated 1,4-dihydropyridine-dicarboxylic acid esters Human Necessities 10 Expired
US5459156A Imidazolyl-substituted phenylacetic acid prolinamides Human Necessities 8 Expired
US5594010A Substituted monopyridylmethyl derivatives Chemistry; Metallurgy 8 Expired
US5599823A Substituted biphenylpyridones Human Necessities 8 Expired
US5328931A N-alkylated 1,4-dihydropyridinedicarboxylic acid esters Human Necessities 7 Expired
US5432185A Haemorheological use of N-alkylated 1,4-dihydropyridine-dicarboxylic acid esters, and some new compounds Human Necessities 6 Expired
US5935983A Use of phenylcyclohexylcarboxamides Chemistry; Metallurgy 6 Expired
US5863930A Trisubstituted biphenyls Human Necessities 6 Expired
US5414003A Pyridinylmethyl-substituted pyridines and pyridones Human Necessities 5 Expired
US5576342A Phenylglycinamides of heterocyclically substitued phenylacetic acid derivatives Chemistry; Metallurgy 5 Expired
US5712296A Substituted pyridines and 2-oxo-1,2-dihydropyridines Human Necessities 4 Expired
US5478836A Heterotricyclically substituted phenyl-cyclohexane-carboxylic acid derivatives Chemistry; Metallurgy 3 Expired
US5492923A Substituted pyridines and 2-oxo-1,2-dihydropyridines Human Necessities 3 Expired
US5607962A Substituted indole derivatives Chemistry; Metallurgy 3 Expired
US5596006A Trisubstituted biphenyls Human Necessities 2 Expired
US5342847A Specific 1,4-dihydropyridine-3,5-dicarboxylic acid ester and its pharmaceutical use Human Necessities 1 Expired
US5708003A Heterotricyclically substituted phenyl-cyclohexane-carboxylic acid derivatives Chemistry; Metallurgy 0 Expired
US5559139A Specific 1,4-dihydropyridine-3,5-dicarboxylic acid ester, and its pharmaceutical use Human Necessities 0 Expired
US5530016A Substituted 2,4-imidazolidinediones Chemistry; Metallurgy 0 Expired
US5834481A Heterotricyclically substituted phenyl-cyclohexane-carboxylic acid derivatives Chemistry; Metallurgy 0 Expired

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