Kirk E. Davis
31Patents
17h-index
23Co-inventors
81Inventor score
Filing activity: May 16, 1974 → Oct 29, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4234435A | Novel carboxylic acid acylating agents, derivatives thereof, concentrate and lubricant compositions containing the same, and processes for their preparation | Chemistry; Metallurgy | 744 | Expired |
| US4119549A | Sulfurized compositions | Emerging Cross-Sectional Technologies | 96 | Expired |
| US4191659A | Sulfurized compositions | Emerging Cross-Sectional Technologies | 68 | Expired |
| US4708809A | Two-cycle engine oils containing alkyl phenols | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US4119550A | Sulfurized compositions | Emerging Cross-Sectional Technologies | 58 | Expired |
| US4136043A | Homogeneous compositions prepared from dimercaptothiadiazoles | Chemistry; Metallurgy | 56 | Expired |
| US4344854A | Sulfurized compositions | Emerging Cross-Sectional Technologies | 54 | Expired |
| US4347148A | Full and lubricant compositions containing nitro phenols | Chemistry; Metallurgy | 51 | Expired |
| US4952328A | Lubricating oil compositions | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US4663063A | Alkyl phenol and amino compound compositions and two-cycle engine oils and fuels containing same | Mechanical Engineering; Lighting; Heating | 41 | Expired |
| US4744920A | Borated overbased material | Chemistry; Metallurgy | 41 | Expired |
| US4584115A | Method of preparing boron-containing compositions useful as lubricant additives | Chemistry; Metallurgy | 33 | Expired |
| US4740321A | Two-cycle engine oils containing sulfurized alkyl phenols | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US4612129A | Sulfur-containing compositions, and additive concentrates and lubricating oils containing same | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4140643A | Nitrogen- and sulfur-containing lubricant additive compositions of improved compatibility | Chemistry; Metallurgy | 23 | Expired |
| US4582618A | Low phosphorus- and sulfur-containing lubricating oils | Chemistry; Metallurgy | 20 | Expired |
| US5486300A | Lubricating compositions | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5614480A | Lubricating compositions and concentrates | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5490945A | Lubricating compositions and concentrates | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4090854A | Sulfurized Mannich condensation products and fuel compositions containing same | Chemistry; Metallurgy | 14 | Expired |
| US5562864A | Lubricating compositions and concentrates | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4425138A | Two-cycle fuel compositions containing amino phenols | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4724091A | Alkyl phenol and amino phenol compositions and two-cycle engine oils and fuels containing same | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4246126A | 2,5-Dimercapto-1,3,4-thiadiazole derivatives and lubricants containing them | Chemistry; Metallurgy | 12 | Expired |
| US4161475A | Sulfurized Mannich condensation products and lubricants containing same | Chemistry; Metallurgy | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.