Peter Wonfor — 16 Patents at Macrovision

Peter Wonfor has been granted 16 US patents while listed as an inventor at Macrovision. The first was granted in 1983 and the most recent in January 2020. Peter Wonfor ranks #284,196 of 4,157,543 US inventors in our database (top 6.8%). Patent records list Peter Wonfor in Inverloch, CA, AU.

Issued Patents All Time

Showing 1–16 of 16 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
10536756	Method and apparatus for reducing and restoring the effectiveness of a commercial skip system	Ronald Quan, John O. Ryan	2020-01-14	$4,949,000
10129605	Method and apparatus for reducing and restoring the effectiveness of a commercial skip system	Ronald Quan, John O. Ryan	2018-11-13	$6,055,000
9549226	Method and apparatus for reducing and restoring the effectiveness of a commercial skip system	Ronald Quan, John O. Ryan	2017-01-17	$11,419,000
9060182	Method and apparatus for reducing and restoring the effectiveness of a commercial skip system	Ronald Quan, John O. Ryan	2015-06-16	$11,845,000
8254756	Method and apparatus for reducing and restoring the effectiveness of a commercial skip system	Ronald Quan, John O. Ryan	2012-08-28	$8,749,000
8250597	Method and apparatus for providing copy protection using a transmittal mode command	Derek T. Nelson	2012-08-21	$13,102,000
7620178	Copy protection for video signal added pulses	Alistair Knox, Jeremy Corcoran, John O. Ryan, Ronald Quan	2009-11-17	$26,423,000
7395545	Method and apparatus for providing copy protection using a transmittal mode command	Derek T. Nelson	2008-07-01	$16,830,000
7298962	Method and apparatus for reducing and restoring the effectiveness of a commercial skip system	Ronald Quan, John O. Ryan	2007-11-20	$5,237,000
6381747	Method for controlling copy protection in digital video networks	Derek T. Nelson	2002-04-30	$9,132,000
5608799	Method and apparatus for scrambling and descrambling of video signal with edge fill	John O. Ryan, Ronald Quan, James R. Holzgrafe	1997-03-04
5583936	Video copy protection process enhancement to introduce horizontal and vertical picture distortions	Alistair Knox, Jeremy Corcoran, John O. Ryan, Ronald Quan	1996-12-10
5579390	Method and apparatus for vertically scrambling and descrambling of video signals	John O. Ryan, Ronald Quan, James R. Holzgrafe	1996-11-26
5504815	Method and apparatus for scrambling and descrambling	John O. Ryan, Ronald Quan, James R. Holzgrafe	1996-04-02
5438620	Method and apparatus for scrambling and descrambling of video signal with edge fill	John O. Ryan, Ronald Quan, James R. Holzgrafe	1995-08-01
4398815	Camera mount	Verl N. Barzee	1983-08-16

Peter Wonfor — 16 Patents

Issued Patents All Time

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