Liquid Audio, Inc.
16Patents
0Active
16Granted
36Portfolio score
Filing activity: Oct 20, 1995 → Mar 26, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6385596B1 | Secure online music distribution system | Electricity | 1,422 | Expired |
| US6367019B1 | Copy security for portable music players | Physics | 338 | Expired |
| US6151631A | Territorial determination of remote computer location in a wide area network for conditional delivery of digitized products | Electricity | 322 | Expired |
| US6345100B1 | Robust watermark method and apparatus for digital signals | Physics | 157 | Expired |
| US6209094A | Robust watermark method and apparatus for digital signals | Physics | 133 | Expired |
| US6219634A | Efficient watermark method and apparatus for digital signals | Physics | 91 | Expired |
| US5852800A | Method and apparatus for user controlled modulation and mixing of digitally stored compressed data | Physics | 83 | Expired |
| US6266644A | Audio encoding apparatus and methods | Physics | 79 | Expired |
| US6330675A | System and method for secure transfer of digital data to a local recordable storage medium | Physics | 71 | Expired |
| US6125348A | Lossless data compression with low complexity | Physics | 57 | Expired |
| US6320965A | Secure watermark method and apparatus for digital signals | Electricity | 48 | Expired |
| US6121904A | Lossless data compression with low complexity | Physics | 46 | Expired |
| US6330673A | Determination of a best offset to detect an embedded pattern | Physics | 36 | Expired |
| US6028541A | Lossless data compression with low complexity | Electricity | 28 | Expired |
| US6043763A | Lossless data compression with low complexity | Electricity | 26 | Expired |
| US6118392A | Lossless data compression with low complexity | Physics | 24 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.