John W. Erwin
1Patents
1h-index
2Co-inventors
22Inventor score
Filing activity: Oct 30, 1989 → Oct 30, 1989
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4936336A | Tamperproof construction for hydrant actuating nut | Emerging Cross-Sectional Technologies | 37 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.