IVL Technologies Ltd.
10Patents
0Active
10Granted
32Portfolio score
Filing activity: Jan 16, 1986 → Nov 26, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6336092B1 | Targeted vocal transformation | Physics | 136 | Expired |
| US4688464A | Pitch detection apparatus | Physics | 79 | Expired |
| US5231671A | Method and apparatus for generating vocal harmonies | Physics | 63 | Expired |
| US5301259A | Method and apparatus for generating vocal harmonies | Physics | 55 | Expired |
| US5567901A | Method and apparatus for changing the timbre and/or pitch of audio signals | Physics | 50 | Expired |
| US5428708A | Musical entertainment system | Physics | 24 | Expired |
| US5641926A | Method and apparatus for changing the timbre and/or pitch of audio signals | Physics | 23 | Expired |
| US6046395A | Method and apparatus for changing the timbre and/or pitch of audio signals | Physics | 18 | Expired |
| US5986198A | Method and apparatus for changing the timbre and/or pitch of audio signals | Physics | 12 | Expired |
| US6738445B1 | Method and apparatus for changing the frequency content of an input signal and for changing perceptibility of a component of an input signal | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.