Dieter H. Hellnick
5Patents
4h-index
3Co-inventors
42Inventor score
Filing activity: Mar 12, 1979 → Aug 29, 1986
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4763737A | Downhole cutter | Fixed Constructions | 25 | Expired |
| US4281430A | Method and apparatus for machining pipe collars | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4708038A | Method for machining and improved modified threaded collar | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4375708A | Non-indexing machining method and apparatus | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4244068A | Method and apparatus for machining pipe collars | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.