David Johnson
18Patents
9h-index
10Co-inventors
69Inventor score
Filing activity: Nov 5, 1976 → Dec 7, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6476708B1 | Detection of an RFID device by an RF reader unit operating in a reduced power state | Physics | 260 | Expired |
| US4507616A | Rotatable superconducting cyclotron adapted for medical use | Emerging Cross-Sectional Technologies | 70 | Expired |
| US4576178A | Audio signal generator | Human Necessities | 42 | Expired |
| US5377492A | Conveyor system for chilling food products | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US5566951A | Method and apparatus enabling archery practice | Human Necessities | 29 | Expired |
| US5410951A | Apparatus and method for continuous high-volume steam cooking | Human Necessities | 26 | Expired |
| US5454687A | High speed sorter/stacker | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4866870A | Revolver speed loader | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4065868A | Revolver speed loader | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| USD313332S | Barbeque grill | General | 6 | Expired |
| USD428561S | Cooking grill | General | 5 | Expired |
| US8568210B1 | Integrated venturi heating elements for air curtains | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US12066214B2 | Integrated active duration UVC exposure for air curtain | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11193570B2 | Continuous variable speed transmission using variable coupling arrangement | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11884889B2 | Kinetic oil processing system | Chemistry; Metallurgy | 0 | Active |
| US10502300B2 | Continuous variable speed transmission using variable coupling arrangement | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12104312B2 | Bracket for a clothesline assembly and a clothesline assembly | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10139120B1 | Integrated venturi heating elements for air curtains | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.