Elbert M. Spencer
7Patents
6h-index
8Co-inventors
56Inventor score
Filing activity: Jun 4, 1973 → Jan 2, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD393305S | Combination operated trigger lock for firearms | General | 13 | Expired |
| US5485735A | Key operated rotary plug and cylinder lock | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4427852A | Anti-static switch lock and method for assembly thereof | Electricity | 8 | Expired |
| US4405843A | Anti-static switch lock | Electricity | 8 | Expired |
| US5531084A | Key for rotary plug and cylinder lock, and method of forming the key | Emerging Cross-Sectional Technologies | 8 | Expired |
| US3966247A | Keyless padlock | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4566167A | Method for assembly of anti-static switch lock | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.