Jay C. Duhn
2Patents
2h-index
4Co-inventors
30Inventor score
Filing activity: Jun 9, 1989 → Dec 11, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5303774A | Ring seal packer | Fixed Constructions | 6 | Expired |
| US4974676A | Ground subsiding wellhead | Fixed Constructions | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.