Inventor · Norwich, NY, US

Thomas J. Schwan

55Patents
5h-index
15Co-inventors
69Inventor score

Filing activity: Oct 9, 1973 → May 3, 2007

Most-cited inventions

PatentTitleAreaCited byStatus
US3969355A 5-Aminoethyl-2,4-diphenylpyrimidine dihydrobromide Chemistry; Metallurgy 9 Expired
US3974169A .alpha.-[2-(2-Pyridyl)ethylamino]phenylacetic acid dihydrochloride Hemihydrate Chemistry; Metallurgy 7 Expired
US3932452A 1-Arylmethyl-2-imidazolidinones Chemistry; Metallurgy 6 Expired
US3993617A Antifungal 2-substituted phthalimidines Chemistry; Metallurgy 6 Expired
US3944581A 5-Substituted-2,4-diphenylpyrimidines Chemistry; Metallurgy 6 Expired
US3939165A 5,6,6A,6B,7,8-Hexahydrobenz[a]phenanthridine hydrochloride Chemistry; Metallurgy 5 Expired
US3966758A Anti-inflammatory 1-(substituted benzyl)-2-imidazolidinones Chemistry; Metallurgy 4 Expired
US3966760A 2-Substituted-5,6-dimethoxyindazoles Chemistry; Metallurgy 4 Expired
US4052400A Hypertensive 1-substituted 2(1H)-pyrimidones Chemistry; Metallurgy 3 Expired
US4003900A 1-Benzyl-5-chloro-2-(1H)-pyrimidone Chemistry; Metallurgy 2 Expired
US4382140A 2,4-Diphenyl-5-pyrimidinecarbonitrile Chemistry; Metallurgy 2 Expired
US4169097A 2,3-Dihydro-4H-1-benzopyran-4-one O-carbamoyl oximes Human Necessities 2 Expired
US3940400A 3-Methyl-4-phenyl-1,2,3,4-tetrahydrobenz[g]isoquinoline hydrobromide Chemistry; Metallurgy 2 Expired
US4160093A 6-Ethyl-6,9-dihydro-9-oxopyrazolo[3,4-f]quinoline-9-carboxylic acid Chemistry; Metallurgy 2 Expired
US4018823A 4',5'-Dimethoxy-2',3-diaminopropiophenone dihydrochloride Chemistry; Metallurgy 2 Expired
US3971788A 2-Methyl-3-phenyl-1,2,3,10b-tetrahydroindeno[1,2,3-ij]-isoquinoline hydrobromide Chemistry; Metallurgy 2 Expired
US4115387A 3-Methyl-4-phenyl-1,2,3,4-tetrahydrobenz [H]isoquinoline hydrobromide Chemistry; Metallurgy 2 Expired
US4001245A 2-[2-(Pipe ridino)ethyl]-10,10a-dihydro-1H,5H-imidazo[1,5-b]isoquinolin-1,3(2H)-dion e Chemistry; Metallurgy 2 Expired
US4052399A 1-[2-(Hexahydro-1H-azepino)ethyl]-2(1H)pyrimidone dihydrochloride Chemistry; Metallurgy 1 Expired
US4228303A 3-(3,4-Dihydroxyphenyl)-N-(4-nitrobenzyl)alanine hydrobromide Chemistry; Metallurgy 1 Expired
US4002652A 2-Substituted-5,6-dimethoxyindazoles Chemistry; Metallurgy 1 Expired
US4099009A 1-(4-Chlorophenyl)-3-(1-ureido)-2-imidazolidinone Chemistry; Metallurgy 1 Expired
US4014878A 2-(3-Morpholinopropyl)-5,6-dimethoxy indazole Chemistry; Metallurgy 1 Expired
US4335130A Antifungal composition Human Necessities 1 Expired
US4009177A Compound 2-(2-thiazolyl)-5,6-dimethoxyindazoles Chemistry; Metallurgy 1 Expired

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