Vifa-Speak A/S
2Patents
0Active
2Granted
19Portfolio score
Filing activity: Apr 4, 1996 → Feb 17, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6320972A | Loudspeaker | Electricity | 18 | Expired |
| US5937075A | Loudspeaker | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.