Edwin Cooper, Inc.
39Patents
0Active
39Granted
32Portfolio score
Filing activity: Nov 1, 1973 → Dec 1, 1983
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4426305A | Lubricating compositions containing boronated nitrogen-containing dispersants | Chemistry; Metallurgy | 74 | Expired |
| US4178258A | Lubricating oil composition | Mechanical Engineering; Lighting; Heating | 63 | Expired |
| US4147640A | Lubricant composition | Chemistry; Metallurgy | 51 | Expired |
| US4505834A | Lubricating oil compositions containing graft copolymer as viscosity index improver-dispersant | Chemistry; Metallurgy | 42 | Expired |
| US3954808A | Methylene bis-phenol alkanoic acid compounds | Chemistry; Metallurgy | 38 | Expired |
| US4083791A | Lubricating oil containing reaction products of polyisobutylphenol, esters of chloroacetic acid, and ethylene polyamine | Chemistry; Metallurgy | 38 | Expired |
| US4204969A | Lubricant composition containing sulfurized olefin extreme pressure additive | Chemistry; Metallurgy | 34 | Expired |
| US4486324A | Hydraulic fluids | Chemistry; Metallurgy | 27 | Expired |
| US4051049A | Lubricating oil containing alkanoic amide or ester-bridged hydrocarbyl substituted phenols | Chemistry; Metallurgy | 19 | Expired |
| US4070370A | Polyester lubricant additives, their preparation and compositions containing them | Chemistry; Metallurgy | 18 | Expired |
| US4158633A | Lubricating oil | Chemistry; Metallurgy | 17 | Expired |
| US4119552A | Lubricant additive | Chemistry; Metallurgy | 16 | Expired |
| US4519929A | Lubricating oil composition containing N-allyl amide graft copolymers | Chemistry; Metallurgy | 15 | Expired |
| US3966807A | Lubricant additives, their preparation and compositions containing them | Chemistry; Metallurgy | 15 | Expired |
| US4046802A | Process for making a high molecular weight alkylphenoxy substituted aliphatic carboxylic ester | Chemistry; Metallurgy | 14 | Expired |
| US4228020A | Lubricating oil composition | Chemistry; Metallurgy | 12 | Expired |
| US4188297A | Lubricant additive | Chemistry; Metallurgy | 10 | Expired |
| US4401581A | Nitrogen-containing ashless dispersants and lubricating oil composition containing same | Chemistry; Metallurgy | 10 | Expired |
| US4206062A | Overbasing chemical process | Chemistry; Metallurgy | 9 | Expired |
| US4331545A | Lubricating compositions containing boronated N-alkanol hydrocarbylamide | Chemistry; Metallurgy | 9 | Expired |
| US4563302A | Sulfurized olefin process | Chemistry; Metallurgy | 9 | Expired |
| US4487706A | Metal deactivator as a lubricant additive | Chemistry; Metallurgy | 9 | Expired |
| US4356097A | Alkylphosphonate lubricating oil | Chemistry; Metallurgy | 9 | Expired |
| US4028117A | Corrosion inhibitors | Chemistry; Metallurgy | 9 | Expired |
| US4165292A | Lubricant corrosion inhibitor | Chemistry; Metallurgy | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.