Winfield Locks, Inc.
4Patents
0Active
4Granted
24Portfolio score
Filing activity: Jan 25, 1982 → May 18, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5820177A | Automatic deadbolt | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4765663A | Spring-loaded dead bolt assembly | Emerging Cross-Sectional Technologies | 22 | Expired |
| USD423326S | Door latch | General | 19 | Expired |
| USD423912S | Door latch | General | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.