Fuyan Zhang
1Patents
1h-index
4Co-inventors
25Inventor score
Filing activity: May 2, 1997 → May 2, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5957197A | Downhole cut-off valve used for cementing | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.