Michael K. O'Brien
17Patents
7h-index
28Co-inventors
62Inventor score
Filing activity: Jun 8, 1990 → Jan 26, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5589100A | Dichroic azo dyes | Chemistry; Metallurgy | 59 | Expired |
| US5714304A | Nonlinear optical media of organosilicon crosslinked polymer | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5663308A | Organosilicon polymers, and dyes, exhibiting nonlinear optical response | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5254655A | Organosilicon polymers, and dyes, exhibiting nonlinear optical response | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5298588A | Organosilicon polymers, and dyes, exhibiting nonlinear optical response | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5605726A | Organosilicon polymers, and dyes, exhibiting nonlinear optical response | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5684159A | L-tartaric acid salt of a (1R) diastereomer of a 2-azadihydroxybicyclo2.2.1!heptane compound and the preparation of 2-azabicyclo2.2.1!heptane compounds | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6429315B1 | Process for preparing N6-substituted adenosine derivatives | Chemistry; Metallurgy | 7 | Expired |
| US6127550A | Stereospecific preparation of chiral 1-aryl-and 1-heteroaryl-2-substituted ethyl-2-amines | Chemistry; Metallurgy | 4 | Expired |
| US5326865A | Arylazo and poly(arylazo) dyes having at least one core radical selected from naphthyl or anthracyl and having at least one 2,3-dihydro-1,3-dialkyl perimidine substituent | Chemistry; Metallurgy | 3 | Expired |
| US5808093A | L-tartaric acid salt of a (1R) diastereomer of a 2-azadihydroxybicyclo2.2.1!heptane compound and the preparation of 2-azabicyclo2.2.1!heptane compounds | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5886192A | L-tartaric acid salt of a (1R) diastereomer of a 2-azadihydroxybicyclo2.2.1!heptane compound and the preparation of 2-azabicyclo2.2.1!heptane compounds | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6184382A | Process for preparing N6-substituted adenosine derivatives | Chemistry; Metallurgy | 1 | Expired |
| US6143894A | Preparation of [1S-[1A,2B,3B,4A(S*)]]-4-[7-[[1-(3-chloro-2-thienyl)methyl propyl]amino] -3H-imidazo[4,5-B]pyridin-3-yl]-N-ethyl-2,3-dihydroxycyclopentanecarboxa mide | Chemistry; Metallurgy | 1 | Expired |
| US6433209B1 | Alpha-substitution of unprotected &bgr;-amino ester compounds | Chemistry; Metallurgy | 1 | Expired |
| US5831096A | L-tartaric acid salt of a (1R) diastereomer of a 2-azadihydroxybicyclo2.2.1!heptane compound and the preparation of 2-azabicyclo2.2.1! heptane compounds | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6433172B1 | Steroespecific preparation of chiral 1-aryl- and 1-heteroaryl-2-substituted ethyl-2-amines | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.