Daniel A. Northrup
2Patents
1h-index
1Co-inventors
24Inventor score
Filing activity: Jul 13, 1977 → Jan 20, 1978
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4150895A | Photographic easel system | Physics | 4 | Expired |
| US4154525A | Multiprint easel | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.