John Zhang
4Patents
3h-index
8Co-inventors
43Inventor score
Filing activity: Nov 5, 1997 → Sep 4, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5947802A | Wafer shuttle system | Performing Operations; Transporting | 27 | Expired |
| US8137256B2 | Brachytherapy apparatus | Human Necessities | 14 | Active |
| US8226539B2 | Brachytherapy apparatus for asymmetrical body cavities | Human Necessities | 11 | Active |
| US7862497B2 | Brachytherapy device having seed tubes with individually-settable tissue spacings | Human Necessities | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.