Frederick E. Liu
4Patents
4h-index
5Co-inventors
43Inventor score
Filing activity: Jun 29, 1990 → Aug 7, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5081718A | Pants type garment having a seamless crotch | Human Necessities | 30 | Expired |
| US6644808B1 | End fastener for eyeglass retainers | Physics | 22 | Expired |
| USD477835S1 | End fastener for an eyeglass retainer | General | 9 | Expired |
| US5549329A | Ski pole and removable hand grip | Human Necessities | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.