Frederick W. Koch
26Patents
11h-index
27Co-inventors
75Inventor score
Filing activity: Oct 4, 1973 → Jul 26, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4031023A | Lubricating compositions and methods utilizing hydroxy thioethers | Chemistry; Metallurgy | 63 | Expired |
| US4741848A | Boron-containing compositions, and lubricants and fuels containing same | Chemistry; Metallurgy | 42 | Expired |
| US4029587A | Lubricants and functional fluids containing substituted sulfolanes as seal swelling agents | Chemistry; Metallurgy | 39 | Expired |
| US3932290A | Phosphorus-containing friction modifiers for functional fluids | Chemistry; Metallurgy | 28 | Expired |
| US7615521B2 | Mixed dispersants for lubricants | Chemistry; Metallurgy | 24 | Active |
| US4029588A | Substituted sulfolanes as seal swelling agents | Chemistry; Metallurgy | 18 | Expired |
| US5376154A | Low-sulfur diesel fuels containing organometallic complexes | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5611765A | Exercise device | Human Necessities | 15 | Expired |
| US5344467A | Organometallic complex-antioxidant combinations, and concentrates and diesel fuels containing same | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5562742A | Copper-containing organometallic complexes and concentrates and diesel fuels containing same | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US4816038A | Metal complexes of mannich bases with a schiff base | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5340369A | Diesel fuels containing organometallic complexes | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4654050A | Esters of carboxy-containing interpolymers | Chemistry; Metallurgy | 10 | Expired |
| US5240624A | Boron-containing compositions and lubricants containing them | Chemistry; Metallurgy | 10 | Expired |
| US5059335A | Lubricants containing salts of hydroxyalkane phosphonic acids | Chemistry; Metallurgy | 10 | Expired |
| US5250203A | Lubricating oil compositions containing a polyoxyalkylene carboxylic acid salt additive | Chemistry; Metallurgy | 10 | Expired |
| US5124059A | Esters of carboxy-containing interpolymers | Chemistry; Metallurgy | 10 | Expired |
| US4778609A | Hydrogen sulfide suppression with amine derivative | Chemistry; Metallurgy | 9 | Expired |
| US4954273A | Oil formulations containing overbased multi-functional additive | Chemistry; Metallurgy | 9 | Expired |
| US5360459A | Copper-containing organometallic complexes and concentrates and diesel fuels containing same | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5518510A | Low-sulfur diesel fuels containing organo-metallic complexes | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5405546A | Phosphorus-containing compositions for refrigeration systems | Chemistry; Metallurgy | 6 | Expired |
| US4784781A | Lubricating oil compositions containing multi-functional additive component | Chemistry; Metallurgy | 6 | Expired |
| US4695390A | Reaction product of polyalrylene-substituted polycarboxylic acid acylating agent, polyamine and sulfolene as a dispersant | Chemistry; Metallurgy | 4 | Expired |
| US5534039A | Organometallic complex-antioxidant combinations, and concentrates and diesel fuels containing same | Mechanical Engineering; Lighting; Heating | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.