Donald E. Ayer
25Patents
10h-index
15Co-inventors
72Inventor score
Filing activity: May 20, 1975 → Nov 8, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5502187A | Pharmaceutically active bicyclic-heterocyclic amines | Chemistry; Metallurgy | 107 | Expired |
| US5302519A | Method of producing a Mad polypeptide | Chemistry; Metallurgy | 74 | Expired |
| US4018918A | Topical clindamycin preparations | Human Necessities | 46 | Expired |
| US5120843A | Pharmaceutically active amines | Chemistry; Metallurgy | 31 | Expired |
| US4336200A | 17.alpha.-Acyloxy-5.beta.-corticoids | Chemistry; Metallurgy | 26 | Expired |
| US3980778A | Anti-inflammatory steroid | Chemistry; Metallurgy | 26 | Expired |
| US4318853A | 9.beta.,11.beta.-Epoxy-5.beta.-corticoids | Chemistry; Metallurgy | 18 | Expired |
| US5175281A | Pharmaceutically active pyrimidinylpiperazinylsterioids | Chemistry; Metallurgy | 18 | Expired |
| US4427591A | Reduced A ring-.DELTA..sup.9(11) -corticoids | Chemistry; Metallurgy | 16 | Expired |
| US4444689A | 17.alpha.-Acyloxy-5.beta.-corticoids and 17.alpha.-acyloxy-5.alpha.-corticoids | Chemistry; Metallurgy | 15 | Expired |
| US5099019A | Amines useful in producing pharmaceutically active CNS compounds | Chemistry; Metallurgy | 9 | Expired |
| US5624818A | Nucleic acids encoding regulatory proteins that dimerize with Mad or Max | Chemistry; Metallurgy | 9 | Expired |
| US6528620B1 | Sid-polyamide fusions: a potent method of regulating gene expression | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4126744A | 4-Oxo-PGI.sub.1 compounds | Chemistry; Metallurgy | 3 | Expired |
| US5506354A | Imidazolylpiperazinyl steroids | Chemistry; Metallurgy | 2 | Expired |
| US5268477A | Triazinylpiperazinyl amine intermediates | Chemistry; Metallurgy | 1 | Expired |
| US5380841A | Pyridinylpiperazinyl steroids | Chemistry; Metallurgy | 1 | Expired |
| US4590187A | Phospholipase A.sub.2 inhibition using 4,1-benzoxazepine-2-(3H)-ones | Chemistry; Metallurgy | 1 | Expired |
| US4226984A | 2-Decarboxy-2-aminomethyl-trans-4,5-didehydro-PGI.sub.1 compounds | Chemistry; Metallurgy | 1 | Expired |
| US4145535A | Pyran analogs of trans-4,5-didehydro-PGI compounds | Chemistry; Metallurgy | 0 | Expired |
| US4200740A | 2-Decarboxy-2-hydroxymethyl-trans-4,5-didehydro-PGI.sub.1 compounds | Chemistry; Metallurgy | 0 | Expired |
| US4202970A | 11-Deoxy-trans-4,5-didehydro-PGI.sub.1 compounds | Chemistry; Metallurgy | 0 | Expired |
| US4198500A | Trans-4,5-didehydro-PGI.sub.1 amides | Chemistry; Metallurgy | 0 | Expired |
| US4567000A | 11-Difluoromethylene steroids | Chemistry; Metallurgy | 0 | Expired |
| US4163843A | 7A-Homo-4-oxo-PGI.sub.1 compounds | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.