D. Joseph Denen
2Patents
2h-index
1Co-inventors
27Inventor score
Filing activity: Oct 19, 1977 → Dec 18, 1978
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4157459A | Electronic audio signalling device for telephones | Electricity | 10 | Expired |
| US4214131A | Electronic audio signalling device for telephones | Electricity | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.