Keqin Chen
4Patents
1h-index
8Co-inventors
41Inventor score
Filing activity: Apr 6, 1992 → Sep 19, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5316935A | Subtilisin variants suitable for hydrolysis and synthesis in organic media | Chemistry; Metallurgy | 85 | Expired |
| US10888018B2 | Check valve for preventing air backflow in a modular cooling system | Electricity | 1 | Active |
| US11255347B2 | Fan vibration damping devices, systems and/or methods | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9675252B2 | Scanning optical systems | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.