John E. Pertle
6Patents
5h-index
3Co-inventors
48Inventor score
Filing activity: Jul 3, 1978 → Nov 26, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4614136A | Angularly adjustable mandrel assembly | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4319503A | Tube facing machine | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4207786A | Cam follower tool arrangement | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4422356A | Cutting tool bit holder | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4246814A | Elbow mandrel | Emerging Cross-Sectional Technologies | 6 | Expired |
| USD264678S | Pipe end preparation tool | General | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.