VALUE VALVES CO., LTD.
2Patents
1Active
2Granted
29Portfolio score
Filing activity: Jul 2, 2002 → Dec 21, 2015
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6726177B2 | Valve with improved junk ring structure | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US9581268B2 | Valve with an anti-loosening stem | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.