David K. Johnson
36Patents
8h-index
40Co-inventors
75Inventor score
Filing activity: Oct 19, 1983 → May 22, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6640889B1 | Dual loop heat and air conditioning system | Performing Operations; Transporting | 71 | Expired |
| US5821796A | Circuitry for providing a high impedance state when powering down a single port node | Electricity | 37 | Expired |
| US4554004A | Process for granulation of fertilizer materials | Chemistry; Metallurgy | 17 | Expired |
| US10023026B2 | Vehicle rear slider window assembly with enhanced rail attachment | Fixed Constructions | 12 | Active |
| US10524313B2 | Rear slider window assembly with laminated heating element | Electricity | 11 | Active |
| US5661395A | Active, low Vsd, field effect transistor current source | Physics | 11 | Expired |
| US9475364B2 | Sealing system for movable window of rear window assembly | Performing Operations; Transporting | 9 | Active |
| US10559153B2 | Vehicle window assembly with integrated touch/proximity sensor | Physics | 8 | Active |
| US7513972B2 | Portable brine evaporator unit, process, and system | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US10239397B2 | Sealing system for movable window of rear window assembly | Fixed Constructions | 7 | Active |
| US6564964B2 | Apparatus for dispensing items from a vending machine | Physics | 7 | Expired |
| USD932520S1 | Pump enclosure | General | 6 | Active |
| US5746284A | Vehicle back-up safety device | Performing Operations; Transporting | 5 | Expired |
| US10566611B2 | Solid-state batteries, separators, electrodes, and methods of fabrication | Emerging Cross-Sectional Technologies | 4 | Active |
| US10502593B1 | Linear and rotary multitrack absolute position encoder and methods using the same | Physics | 3 | Active |
| US10807445B2 | Vehicle window assembly with louvered window | Performing Operations; Transporting | 3 | Active |
| US11938793B2 | Sealing system for movable window of vehicular rear window assembly | Performing Operations; Transporting | 3 | Active |
| US10434844B2 | Vehicle window assembly with louvered window | Performing Operations; Transporting | 2 | Active |
| US10333123B2 | High capacity solid state composite cathode, solid state composite separator, solid-state rechargeable lithium battery and methods of making same | Emerging Cross-Sectional Technologies | 2 | Active |
| US9793525B2 | Solid-state battery electrodes | Emerging Cross-Sectional Technologies | 2 | Active |
| US11191374B1 | Aromatherapy blanket assembly | Human Necessities | 1 | Active |
| US10011158B2 | Sealing system for movable window of rear window assembly | Performing Operations; Transporting | 1 | Active |
| US7502446B2 | Soft x-ray generator | Electricity | 1 | Active |
| US12304523B2 | Method and apparatus for trajectory smoothing in autonomous vehicle control | Performing Operations; Transporting | 0 | Active |
| US11749826B2 | Thermo-electrochemical converter having dense metal electrode | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.