Zhengfang Xu
8Patents
4h-index
6Co-inventors
50Inventor score
Filing activity: Jul 18, 2000 → Jul 18, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6372863B1 | Synthesis of styrene-butadiene rubber | Performing Operations; Transporting | 17 | Expired |
| US6780948B2 | Synthesis of polyisoprene with neodymium catalyst | Chemistry; Metallurgy | 15 | Expired |
| US6566478B1 | Synthesis of high vinyl rubber | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6313216A | Synthesis of styrene-isoprene rubber | Chemistry; Metallurgy | 9 | Expired |
| USD1028364S1 | Nail drill machine | General | 4 | Active |
| USD1021258S1 | Nail drill machine | General | 4 | Active |
| USD1065687S1 | Nail drill | General | 0 | Active |
| USD1079131S1 | Nail drill | General | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.