Kenneth A. Johnson
22Patents
11h-index
9Co-inventors
68Inventor score
Filing activity: Dec 16, 1977 → May 30, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5348711A | Dental handpiece sterilizer | Human Necessities | 44 | Expired |
| US4242948A | Insulated composite piston | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US6543483B2 | Fluid handling port array | Emerging Cross-Sectional Technologies | 29 | Expired |
| US6148667A | Pressure vessel isolation carriage | Physics | 25 | Expired |
| US4738230A | Variable compression ratio control | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US7817914B2 | Camera configurable for autonomous operation | Electricity | 19 | Active |
| US7676145B2 | Camera configurable for autonomous self-learning operation | Electricity | 17 | Active |
| US4676202A | Engine cooling system | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US7007822B2 | Chemical mix and delivery systems and methods thereof | Performing Operations; Transporting | 15 | Expired |
| US6186745A | Gas pressurized liquid pump with intermediate chamber | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4619590A | Air diverter for supercharger | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5098200A | Dual range temperature monitoring circuits | Physics | 11 | Expired |
| US5119885A | Element basket for horizontal rotary regenerative heat exchanger | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5390322A | Apparatus and method for retaining cycle memory in electronic sterilizer controls | Physics | 9 | Expired |
| US4656975A | Engine cooling system | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5878924A | Plunger--actuated chemical dispense head | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5270948A | Control means including a diagnostic operating mode for a sterilizer | Physics | 7 | Expired |
| US4921675A | Biocidal gas sterilizer | Human Necessities | 7 | Expired |
| US4971761A | Temperature control method for an ethylene oxide sterilization cycle | Human Necessities | 6 | Expired |
| US5185709A | Apparatus and method for measuring pressure changes within pressure vessels | Physics | 6 | Expired |
| US6374861B1 | Fluid handling port array | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5975379A | Dripless chemical dispense head assembly | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.