The Upjohn Co.
2,180Patents
0Active
2,180Granted
45Portfolio score
Filing activity: Oct 26, 1967 → Sep 16, 2002
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5633374A | Pyrimidine, cyanoguanidines as K-channel blockers | Chemistry; Metallurgy | 997 | Expired |
| US4139619A | 6-Amino-4-(substituted amino)-1,2-dihydro-1-hydroxy-2-iminopyrimidine, topical compositions and process for hair growth | Human Necessities | 170 | Expired |
| US4169888A | Composition of matter and process | Emerging Cross-Sectional Technologies | 138 | Expired |
| US4596812A | Methods and solutions for treating male pattern alopecia | Human Necessities | 136 | Expired |
| US4306075A | Composition and process | Chemistry; Metallurgy | 134 | Expired |
| US5502187A | Pharmaceutically active bicyclic-heterocyclic amines | Chemistry; Metallurgy | 107 | Expired |
| US5122458A | Use of a bGH gDNA polyadenylation signal in expression of non-bGH polypeptides in higher eukaryotic cells | Human Necessities | 105 | Expired |
| US4083974A | Topical steroidal anti-inflammatory preparations containing polyoxypropylene 15 stearyl ether | Human Necessities | 103 | Expired |
| US4382108A | Novel compositions and process | Emerging Cross-Sectional Technologies | 99 | Expired |
| US4061815A | Novel compositions | Emerging Cross-Sectional Technologies | 97 | Expired |
| US5162601A | Plant potyvirus expression vector with a gene for protease | Chemistry; Metallurgy | 94 | Expired |
| US4160827A | Metronidazole phosphate and salts | Human Necessities | 94 | Expired |
| US5565571A | Substituted aryl- and heteroaryl-phenyloxazolidinones | Chemistry; Metallurgy | 93 | Expired |
| US4145435A | 2-Aminocycloaliphatic amide compounds | Chemistry; Metallurgy | 92 | Expired |
| US4306076A | Inter-phenylene CBA compounds | Chemistry; Metallurgy | 91 | Expired |
| US3987052A | 6-Phenyl-4H-s-triazolo[4,3-a][1,4]benzodiazepines | Chemistry; Metallurgy | 88 | Expired |
| US4668814A | Interphenylene carbacyclin derivatives | Chemistry; Metallurgy | 82 | Expired |
| US4593760A | Removal of volatile contaminants from the vadose zone of contaminated ground | Emerging Cross-Sectional Technologies | 80 | Expired |
| US4376834A | Polyurethane prepared by reaction of an organic polyisocyanate, a chain extender and an isocyanate-reactive material of m.w. 500-20,000 characterized by the use of only 2-25 percent by weight of the latter material | Chemistry; Metallurgy | 77 | Expired |
| US4385133A | Novel compositions and process | Emerging Cross-Sectional Technologies | 74 | Expired |
| US4089432A | Vial and closure | Emerging Cross-Sectional Technologies | 74 | Expired |
| US4660639A | Removal of volatile contaminants from the vadose zone of contaminated ground | Emerging Cross-Sectional Technologies | 73 | Expired |
| US4683330A | Interphenylene carbacyclin derivatives | Chemistry; Metallurgy | 72 | Expired |
| US4044227A | Bar code reader | Physics | 71 | Expired |
| US4438130A | Analgesic 1-oxa-, aza- and thia-spirocyclic compounds | Chemistry; Metallurgy | 70 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.