SHUYU CO., LTD.
3Patents
1Active
3Granted
28Portfolio score
Filing activity: Jun 6, 1995 → Nov 27, 2013
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5818567A | Frame structure for eyeglasses having a spring-hinge | Physics | 37 | Expired |
| US5523806A | Eyeglasses having improved lens fastening member | Physics | 11 | Expired |
| US9097905B2 | Polarized lens | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.