Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JR

John O. Ryan — 77 Patents

MAMacrovision: 44 patents #2 of 69Top 3%
AMAmpex: 16 patents #2 of 247Top 1%
RTRovi Technologies: 10 patents #8 of 59Top 15%
CACommand Audio: 4 patents #3 of 14Top 25%
DIDigimarc: 1 patents #122 of 189Top 65%
MIMicrovision: 1 patents #107 of 190Top 60%
Woodside, CA: #14 of 553 inventorsTop 3%
California: #3,703 of 386,348 inventorsTop 1%
Overall (All Time): #24,274 of 4,157,543Top 1%
77 Patents All Time
John O. Ryan has been granted 77 US patents while listed as an inventor at Macrovision. The first was granted in 1980 and the most recent in January 2020. John O. Ryan ranks #24,274 of 4,157,543 US inventors in our database (top 0.58%). Patent records list John O. Ryan in Woodside, CA, US.

Issued Patents All Time

Showing 1–25 of 77 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10536756 Method and apparatus for reducing and restoring the effectiveness of a commercial skip system Ronald Quan, Peter Wonfor 2020-01-14 $4,949,000
10129605 Method and apparatus for reducing and restoring the effectiveness of a commercial skip system Ronald Quan, Peter Wonfor 2018-11-13 $6,055,000
9549226 Method and apparatus for reducing and restoring the effectiveness of a commercial skip system Ronald Quan, Peter Wonfor 2017-01-17 $11,419,000
9060182 Method and apparatus for reducing and restoring the effectiveness of a commercial skip system Ronald Quan, Peter Wonfor 2015-06-16 $11,845,000
8365307 Method and apparatus for storing copy protection information separately from protected content Ronald Quan, James Salter 2013-01-29 $24,182,000
8259939 System and method for allowing copying or distribution of a copy protected signal Ronald Quan 2012-09-04 $26,793,000
8254756 Method and apparatus for reducing and restoring the effectiveness of a commercial skip system Ronald Quan, Peter Wonfor 2012-08-28 $8,749,000
8014524 Scaling independent technique for watermarking images with recorder shut-off 2011-09-06 $39,095,000
7907727 System and method for allowing copying or distribution of a copy protected signal Ronald Quan 2011-03-15 $43,131,000
7784103 Method and apparatus for storing copy protection information separately from protected content Ronald Quan, James Salter 2010-08-24 $28,330,000
7764790 Scaling independent technique for watermarking images 2010-07-27 $6,826,000
7620178 Copy protection for video signal added pulses Peter Wonfor, Alistair Knox, Jeremy Corcoran, Ronald Quan 2009-11-17 $26,423,000
7298962 Method and apparatus for reducing and restoring the effectiveness of a commercial skip system Ronald Quan, Peter Wonfor 2007-11-20 $5,237,000
7274790 Scrambling and descrambling a high definition TV signal James R. Holzgrafe, Mark Hollar 2007-09-25 $10,694,000
6950520 Method and apparatus for carrying data in a video signal so that the data is not recorded James R. Holzgrafe, Mark Hollar 2005-09-27 $8,444,000
6701062 Generational copy control of a video signal Johan Cornelis Talstra, Mark Hollar, Kordian Kurowski, David C. Collier, William J. Wrobleski +4 more 2004-03-02 $10,933,000
6600873 Method and apparatus for detecting modified color burst signals to prevent the copying of a video program Gerow D. Brill 2003-07-29 $17,929,000
6590979 Method and apparatus for compression compatible video scrambling 2003-07-08 $17,817,000
6542609 Method and apparatus for scrambling a high definition television signal James R. Holzgrafe, Mark Hollar 2003-04-01 $9,837,000
6411713 Method of adaptive control of the presence of a copy protection signal 2002-06-25 $11,747,000
6404889 Protection of a component video signal Kordian Kurowski, Ronald Quan 2002-06-11 $13,214,000
6381367 Method and apparatus for compression compatible video fingerprinting 2002-04-30 $9,132,000
6374036 Method and apparatus for copy-once watermark for video recording Patrice Capitant, Clayton L. Davidson, James R. Holzgrafe, Kordian Kurowski, Andrew Mellows +1 more 2002-04-16 $21,958,000
6330334 Method and system for information dissemination using television signals 2001-12-11
6327422 Method and apparatus for modifying the effects of color burst modifications to a video signal Ronald Quan 2001-12-04 $41,988,000