Douglas J. Johnson
8Patents
6h-index
9Co-inventors
56Inventor score
Filing activity: Jul 19, 1982 → Mar 9, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD310742S | Boot and shoe dryer | General | 46 | Expired |
| US4414701A | Device for cleaning a hose coupling | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4579071A | Packer wheel assembly | Human Necessities | 23 | Expired |
| US7770300B2 | Chalk line | Performing Operations; Transporting | 23 | Active |
| US9701154B2 | Chalk reel | Performing Operations; Transporting | 20 | Active |
| US10578369B1 | Thermal management using endothermic heat sink | Emerging Cross-Sectional Technologies | 6 | Active |
| US11150029B1 | Thermal management using endothermic heat sink | Emerging Cross-Sectional Technologies | 1 | Active |
| US11493279B2 | Thermal management using endothermic heat sink | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.