Donald J. Caldwell
9Patents
4h-index
18Co-inventors
54Inventor score
Filing activity: Jul 11, 1986 → Apr 20, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4777852A | Ratcheting screwdriver | Performing Operations; Transporting | 74 | Expired |
| USD309246S | Screwdriver | General | 37 | Expired |
| USD307236S | Screwdriver | General | 32 | Expired |
| US4845792A | Two-part adjustable approach ramp | Performing Operations; Transporting | 25 | Expired |
| US10811667B2 | Battery terminal | Emerging Cross-Sectional Technologies | 3 | Active |
| US4994890A | Rectifier structure with individual links | Electricity | 2 | Expired |
| US9508972B2 | Venting device for an electrochemical battery and battery with a venting device | Emerging Cross-Sectional Technologies | 0 | Active |
| US11637352B2 | Battery terminal | Emerging Cross-Sectional Technologies | 0 | Active |
| US11605864B2 | Battery terminal | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.