John D. Johnson
22Patents
10h-index
21Co-inventors
75Inventor score
Filing activity: Jun 25, 1975 → Oct 10, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5171229A | Needle tip cover | Human Necessities | 85 | Expired |
| US5087934A | Waterproof camera housing | Physics | 68 | Expired |
| US5239323A | Waterproof camera housing | Physics | 66 | Expired |
| US5546804A | Transmitter with moisture draining housing and improved method of mounting RFI filters | Electricity | 59 | Expired |
| US5939362A | Enhanced corrosion protection by use of friction reducers in conjuction with corrosion inhibitors | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5322640A | Water soluble corrosion inhibitors | Chemistry; Metallurgy | 28 | Expired |
| US4365968A | Method of treating textile materials | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5302293A | Method of controlling iron in produced oilfield waters | Chemistry; Metallurgy | 16 | Expired |
| US4287870A | Indoor barbeque cooking device | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| USD289859S | Survey marker cap | General | 10 | Expired |
| US4185611A | Fireplace heating unit | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4088114A | Fireplace heater | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7520629B2 | Underwater LED flashlight system | Emerging Cross-Sectional Technologies | 7 | Active |
| US5275760A | Gelled corrosion inhibition method | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4039695A | Compacted grated cheese | Human Necessities | 6 | Expired |
| US6804504B1 | Audio processing system | Electricity | 5 | Expired |
| US3973730A | Apparatus for applying refractory coating to the roof linings of electric arc furnaces | Performing Operations; Transporting | 5 | Expired |
| US4616711A | System and method of controlling and preventing the spread of forest fires | Human Necessities | 5 | Expired |
| US4244972A | Manufacture of hard, grating cheese | Human Necessities | 4 | Expired |
| US4270915A | Fabric printing process | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7694325B2 | Information broadcasting system | Electricity | 2 | Active |
| US8903099B2 | End of branch module system | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.