Helmut Ensinger
23Patents
8h-index
40Co-inventors
71Inventor score
Filing activity: May 24, 1985 → Jan 30, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5719279A | Asymmetrically substituted xanthines | Human Necessities | 93 | Expired |
| US5240933A | 14-hydroxy-N-(2-methoxyethyl)-7,8-dihydromorphine and -norisomorphine, processes for the preparation thereof and the use thereof as pharmaceutical compositions | Human Necessities | 39 | Expired |
| US5641784A | 8-substituted 1,3-dialiphaticxanthine derivatives | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US5286864A | Quinuclidines, their use as medicaments and processes for their preparation | Chemistry; Metallurgy | 20 | Expired |
| US5532368A | Xanthine derivatives with adenosine-antagonistic activity | Chemistry; Metallurgy | 20 | Expired |
| US6277872A | Oxadiazoles, processes for their preparation and their use as medicaments | Chemistry; Metallurgy | 17 | Expired |
| US5731318A | Benzomorphan derivatives | Chemistry; Metallurgy | 10 | Expired |
| US5508405A | Quinuclidines, their use as medicaments and processes for their preparation | Human Necessities | 8 | Expired |
| US4732900A | 1,2,4-triazolo-carbamates | Chemistry; Metallurgy | 7 | Expired |
| US4670456A | 4-Aminocarbonylaminomethyl-1-benzylpyrrolidin-2-ones as nootropic agents and as agents for treating cerebral insufficiency | Chemistry; Metallurgy | 7 | Expired |
| US5451587A | Quinuclidines, their use as medicaments and processes for their preparation | Human Necessities | 6 | Expired |
| US6770636B2 | Phenyl-and phenylalkyl-substituted ethanolamines and ethylenediamines | Chemistry; Metallurgy | 4 | Expired |
| US5696124A | Xanthine derivatives with adenosine-antagonistic activity | Chemistry; Metallurgy | 3 | Expired |
| US6441237B1 | Substituted 3-phenoxy- and 3-phenylalkyloxy-2-phenyl-propylamines | Chemistry; Metallurgy | 3 | Expired |
| US4762832A | Morpholine containing pyrrolidinones pharmaceutical compositions and use | Chemistry; Metallurgy | 2 | Expired |
| US5688802A | Bornyl xanthine derivatives with adenosine-antagonistic activity | Chemistry; Metallurgy | 1 | Expired |
| US6355652B1 | Substituted 1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines and their use as pharmaceutical compositions | Chemistry; Metallurgy | 1 | Expired |
| US4857528A | Substituted pyrrolidinones, pharmaceutical compositions and use | Chemistry; Metallurgy | 1 | Expired |
| US5614516A | 12-aminopyridazinopyrroloisoquinoline compounds | Human Necessities | 1 | Expired |
| US5422353A | Tetrahydropyridine derivatives | Human Necessities | 0 | Expired |
| US4891378A | Nortropanyl containing pyrrolidinones, pharmaceutical compositions and use | Chemistry; Metallurgy | 0 | Expired |
| US6387921B1 | Substituted 1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocines and their use as pharmaceutical compositions | Chemistry; Metallurgy | 0 | Expired |
| US6683089B2 | N-allyoxyethyl-1,2,3,4,5,6-hexahydro-2,6-methano-3-benzazocine-10-ols | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.