Julian D. Keithahn
4Patents
4h-index
6Co-inventors
39Inventor score
Filing activity: Aug 18, 1980 → May 1, 1985
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4444250A | Flow diverter | Emerging Cross-Sectional Technologies | 155 | Expired |
| US4635678A | Flow control apparatus | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4605195A | Annular blowout preventer packing unit | Fixed Constructions | 12 | Expired |
| US4342330A | Ball type valve having improved redundant sealing system | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.