Keith Coffman
4Patents
3h-index
3Co-inventors
47Inventor score
Filing activity: Sep 23, 1981 → Feb 28, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4640229A | Apparatus for feeding livestock | Human Necessities | 23 | Expired |
| US4421060A | Nipple waterer | Human Necessities | 7 | Expired |
| USD295905S | Base for a pig feeder | General | 3 | Expired |
| US6726021B2 | Stopper debris separator | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.