Joseph T. Klein
89Patents
10h-index
41Co-inventors
78Inventor score
Filing activity: Feb 4, 1980 → Feb 21, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4983608A | N-substituted-4-pyrimidinamines and pyrimidinediamines | Chemistry; Metallurgy | 80 | Expired |
| US4970219A | Heteroarylamino- and heteroaryloxypyridinamine compounds which have useful utility in treating skin disorders | Chemistry; Metallurgy | 35 | Expired |
| US5179204A | N-substituted-4-pyrimidinamines and pyrimidinediamines | Chemistry; Metallurgy | 35 | Expired |
| US4988690A | 1-aryloxy-2,3,4,5-tetrahydro-3-benzazepines and anti-depressant use thereof | Human Necessities | 34 | Expired |
| US7994168B2 | Hexahydro-pyrazino[1,2-A]pyrimidine-4,7-dione derivatives substituted with amino acids | Human Necessities | 28 | Active |
| US4578394A | Cholinergic function increasing 3-[N-(pyridyl) carbamoyl]-1,4-dihydropyridines | Human Necessities | 21 | Expired |
| US4916135A | N-heteroaryl-4-quinolinamines | Human Necessities | 18 | Expired |
| US4970218A | N-(pyridinyl)-1H-indol-1-amines | Chemistry; Metallurgy | 14 | Expired |
| US4880822A | N-(pyridinyl)-1H-indol-1-amines | Chemistry; Metallurgy | 11 | Expired |
| US5102891A | 1-(substituted pyridinylamino)-1H-indol-5-yl substituted carbamates | Chemistry; Metallurgy | 10 | Expired |
| US5034403A | Heteroarylamino-and heteroaryloxypyridinamines and related compounds | Chemistry; Metallurgy | 10 | Expired |
| US4458075A | 6-Fluoro-3-[3-(1-heterocyclo)propyl]-1,2-benzisoxazoles | Chemistry; Metallurgy | 10 | Expired |
| US5328920A | Substituted (pyridinylamino)-indoles | Chemistry; Metallurgy | 9 | Expired |
| US4752610A | N-(pyrrol-1-yl)pyridinamines having memory enhancing properties | Human Necessities | 9 | Expired |
| US5039811A | Preparation of N-(pyridinyl)-1H-indol-1-amines | Chemistry; Metallurgy | 8 | Expired |
| US4983615A | Heteroarylamino- and heteroaryloxypyridinamine compounds which are useful in treating skin disorders | Chemistry; Metallurgy | 8 | Expired |
| US5221682A | Heteroarylamino- and heteroaryloxypyridinamines and related compounds | Chemistry; Metallurgy | 8 | Expired |
| US5177088A | Substituted 3-(pyridinylamino)-indoles | Chemistry; Metallurgy | 7 | Expired |
| US5246947A | Substituted pyridinylamino-1,2-benzisothiazoles and their use for treating depression | Chemistry; Metallurgy | 7 | Expired |
| US5229401A | Substituted pyridinylamino benzo[b]thiophene compounds | Chemistry; Metallurgy | 7 | Expired |
| US4396770A | 1-[3-(6-Fluoro-1,2-benzisoxazol-3-yl)propyl]-4-hydroxy -4-phenylpiperidines | Chemistry; Metallurgy | 7 | Expired |
| US6022880A | Substituted pyridylamino indoles | Chemistry; Metallurgy | 7 | Expired |
| US7169925B2 | Indole derivatives as interleukin-4 gene expression inhibitors | Chemistry; Metallurgy | 6 | Expired |
| US4374245A | 8-[3-(6-Fluoro-1,2-benzisoxazol-3-yl)propyl]- 1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one | Human Necessities | 6 | Expired |
| US5059688A | 1-aryloxy-2,3,4,5-tetrahydro-3-benzazepine preparation | Chemistry; Metallurgy | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.