David E. Zimmerman
6Patents
4h-index
4Co-inventors
50Inventor score
Filing activity: Dec 7, 1987 → Jul 9, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5075580A | Circuit for converting an ECL signal into a CMOS signal | Electricity | 6 | Expired |
| USD515444S1 | Battery tester | General | 6 | Expired |
| US6823274B2 | Apparatus and method for testing remaining capacity of a battery | Physics | 6 | Expired |
| USD611851S1 | Battery tester | General | 4 | Expired |
| US4757508A | Tracking modulation limiter for lasers | Electricity | 4 | Expired |
| USD569285S1 | Battery tester | General | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.