TrioVing AS
11Patents
0Active
11Granted
28Portfolio score
Filing activity: Mar 24, 1982 → Jan 12, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5089692A | Electronic lock | Physics | 46 | Expired |
| US4519228A | Electronic recodeable lock | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5670940A | Electronic lock system with occupancy block | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5025647A | Lock arrangement | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5260551A | Time controlled lock system | Physics | 14 | Expired |
| US4562343A | Recodable electronic lock | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5343724A | Lock arrangement employing mechanically acting code card and key card | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4596359A | Device for punching hole in cards | Performing Operations; Transporting | 8 | Expired |
| US5502991A | Lock cylinder with variable keyway profile | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6154996A | Locking device for firearms | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| USRE36426E | Time controlled lock system | General | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.