Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
PC

Peter Graham Craven

D2D2Audio: 6 patents #7 of 17Top 45%
DLDolby Laboratories Licensing: 6 patents #231 of 815Top 30%
MLMqa Limited: 4 patents #1 of 3Top 35%
BLB&W Loudspeakers Limited: 3 patents #3 of 8Top 40%
LLLenbrook Industries Limited: 2 patents #8 of 14Top 60%
CLCirrus Logic: 1 patents #703 of 1,131Top 65%
Westminster, GB: #1 of 277 inventorsTop 1%
Overall (All Time): #85,506 of 4,157,543Top 3%
38 Patents All Time

Issued Patents All Time

Showing 26–38 of 38 patents

Patent #TitleCo-InventorsDate
6774820 Matrix improvements to lossless encoding and decoding Malcolm Law, John Robert Stuart 2004-08-10
6760451 Compensating filters Michael A. Gerzon 2004-07-06
6664913 Lossless coding method for waveform data Michael A. Gerzon 2003-12-16
6611212 Matrix improvements to lossless encoding and decoding Malcolm Law, John Robert Stuart 2003-08-26
6232899 Analogue and digital convertors 2001-05-15
6031481 Analogue and digital converters 2000-02-29
6023233 Data rate control for variable rate compression systems Malcolm Law 2000-02-08
5815580 Compensating filters Michael A. Gerzon 1998-09-29
5784017 Analogue and digital convertors using pulse edge modulators with non-linearity error correction 1998-07-21
5708433 Digital converter 1998-01-13
5627899 Compensating filters Michael A. Gerzon 1997-05-06
5548286 Analogue and digital convertors using pulse edge modulators with non-linearity error correction 1996-08-20
5511129 Compensating filters Michael A. Gerzon 1996-04-23