Inventor · disambiguated record
John Abt
Also filed as: ABT JOHN · ABT JOHN O
17 granted patents·2 pending applications·371 citations·filing 1986–2016
95Inventor score
Top patents by PatentIndex Score
19 records- 0186US4965668AAdaptive rounder for video signalsGRASS VALLEY GROUP·Filed 1989·Granted Oct 23, 1990·54 cites·6 claims
- 0284US4853784AVideo switcher with independent processing of selected video signalsGRASS VALLEY GROUP·Filed 1988·Granted Aug 1, 1989·53 cites·11 claims
- 0381US4858011AVideo switcher system with modular architectureJACKSON RICHARD A·Filed 1988·Granted Aug 15, 1989·48 cites·23 claims
- 0478US7353284B2Synchronized transmission of audio and video data from a computer to a client via an interfaceAPPLE INC·Filed 2003·Granted Apr 1, 2008·16 cites·35 claims
- 0571US4821269ADiagnostic system for a digital signal processorGRASS VALLEY GROUP·Filed 1986·Granted Apr 11, 1989·44 cites·9 claims
- 0668US4823183AVideo mixer with multicolor boarderGRASS VALLEY GROUP·Filed 1988·Granted Apr 18, 1989·21 cites·9 claims
- 0768US4805022ADigital wipe generatorGRASS VALLEY GROUP·Filed 1988·Granted Feb 14, 1989·21 cites·5 claims
- 0867US7970926B2Synchronized transmission of audio and video data from a computer to a client via an interfaceAPPLE INC·Filed 2008·Granted Jun 28, 2011·1 cites·40 claims
- 0966US7668099B2Synthesis of vertical blanking signalAPPLE INC·Filed 2003·Granted Feb 23, 2010·8 cites·19 claims
- 1062US5638133AMethod of creating video effects by use of keyframesTEKTRONIX INC·Filed 1995·Granted Jun 10, 1997·29 cites·5 claims
- 1160US4947254ALayered mix effects switcher architectureGRASS VALLEY GROUP·Filed 1989·Granted Aug 7, 1990·16 cites·3 claims
- 1259US4873568ADigital video effects apparatusGRASS VALLEY GROUP·Filed 1988·Granted Oct 10, 1989·15 cites·27 claims
- 1354US4963977AApparatus for generating a video signal representing a field of spatially varying colorGRASS VALLEY GROUP·Filed 1988·Granted Oct 16, 1990·12 cites·4 claims
- 1452US5235423AControllable pseudo random noise pattern generator for use in video special effectsGRASS VALLEY GROUP·Filed 1992·Granted Aug 10, 1993·14 cites·25 claims
- 1551US8838825B2Synchronized transmission of audio and video data from a computer to a client via an interfaceAGNOLI GIOVANNI M·Filed 2011·Granted Sep 16, 2014·0 cites·17 claims
- 1648US2016337674A1Interface for sending synchronized audio and video dataAPPLE INC·Filed 2016·Application pending·0 cites
- 1747US4700232AInterpolator for television special effects systemGRASS VALLEY GROUP·Filed 1986·Granted Oct 13, 1987·17 cites·12 claims
- 1847US2004255338A1Interface for sending synchronized audio and video dataAPPLE COMPUTER·Filed 2003·Application pending·0 cites
- 1931US5850267ANon-additive video mixerTEKTRONIX INC·Filed 1993·Granted Dec 15, 1998·2 cites·23 claims
Join the waitlist — get patent alerts
Get an alert when John Abt files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →