Qvex, Inc.
5Patents
0Active
5Granted
26Portfolio score
Filing activity: Jul 29, 1997 → Jun 28, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6550600B2 | Coin escrow and changer apparatus | Physics | 12 | Expired |
| US6223877A | Coin validation apparatus | Physics | 10 | Expired |
| US5924543A | Coin escrow apparatus for pay telephones | Electricity | 4 | Expired |
| US6712688B2 | Coin changer | Physics | 3 | Expired |
| US6163603A | Coin escrow apparatus with relay switch contact simulator | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.