Walter Elger
121Patents
18h-index
130Co-inventors
89Inventor score
Filing activity: May 2, 1974 → Aug 24, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4738957A | Estriol esters | Chemistry; Metallurgy | 71 | Expired |
| US5569652A | Dihydrospirorenone as an antiandrogen | Human Necessities | 63 | Expired |
| US7534780B2 | Estradiol prodrugs | Chemistry; Metallurgy | 56 | Active |
| US6388109B1 | 14,15-cyclopropano steroids of the 19-norandrostane series, method for the production thereof and pharmaceutical preparations containing said compounds | Human Necessities | 55 | Expired |
| US6653298B2 | Composition | Human Necessities | 55 | Expired |
| US7335650B2 | Composition | Human Necessities | 52 | Expired |
| US7378404B2 | 8β-hydrocarbyl-substituted estratrienes for use as selective estrogens | Chemistry; Metallurgy | 52 | Expired |
| US4609651A | 11.beta.-arylestradienes, their production, and pharmaceutical preparations containing same | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4073934A | Novel acetylenic prostaglandin analogs | Chemistry; Metallurgy | 34 | Expired |
| US6225347A | 9-halogen-(Z)-prostaglandin derivatives, process for their production and their use as pharmaceutical agents | Chemistry; Metallurgy | 30 | Expired |
| US4454339A | 9-Fluoroprostaglandin derivatives, and use as medicinal agents | Chemistry; Metallurgy | 28 | Expired |
| US4256745A | New prostane derivatives and process for their preparation | Chemistry; Metallurgy | 24 | Expired |
| US4814327A | 11 .beta.-(4-isopropenylphenyl)estra-4,9-dienes, their production, and pharmaceutical preparations containing same | Chemistry; Metallurgy | 24 | Expired |
| US4536401A | 11.beta.-aryl estradienes, processes for their production and pharmaceutical preparations containing them | Chemistry; Metallurgy | 23 | Expired |
| US5693628A | 11-benzaldoxime-estra-diene derivatives, methods for their production and pharmaceuticals containing these compounds | Chemistry; Metallurgy | 22 | Expired |
| US4670427A | 1.alpha.,2.alpha.-methylene-6-methylene- and 6.alpha.-methylpregnenes, their preparation and pharmaceutical use | Chemistry; Metallurgy | 22 | Expired |
| US4699920A | 9-halo-2-prostaglandin derivatives, processes for the preparation thereof and use thereof as medicinal agents | Chemistry; Metallurgy | 21 | Expired |
| US4780461A | 13.alpha.-alkyl-gonanes, their production, and pharmaceutical preparations containing same | Chemistry; Metallurgy | 20 | Expired |
| US5089488A | .beta.-(4-isopropenylphenyl)estra-4,9-dienes, their production, and pharmaceutical preparations containing same | Chemistry; Metallurgy | 18 | Expired |
| US4217360A | Novel 1,3-benzodioxaneprostanoic acid derivatives and process for the preparation thereof | Chemistry; Metallurgy | 17 | Expired |
| US5273971A | 13-alkyl-11.beta.-phenylgonanes | Chemistry; Metallurgy | 17 | Expired |
| US5446036A | 13-alkyl-11beta-phenylgonanes | Chemistry; Metallurgy | 16 | Expired |
| US4004020A | Novel prostanoic acid derivatives and process for the preparation thereof | Chemistry; Metallurgy | 16 | Expired |
| US4870069A | 11.beta.-alkynyl-estrenes and -estradienes, their production and pharmaceutical preparations containing them | Chemistry; Metallurgy | 16 | Expired |
| US4444788A | Pharmaceutically active 9-chloroprostaglandins | Chemistry; Metallurgy | 16 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.