Inventor · disambiguated record
Stephan V. Schell
Also filed as: SCHELL STEPHAN · SCHELL STEPHAN V · SCHELL STEPHAN VINCENT
87 granted patents·8 pending applications·2,493 citations·filing 1990–2025
99Inventor score
Files withAPPLE INC51SCHELL STEPHAN V11TROPIAN INC8MATSUSHITA ELECTRIC INDUSTRIAL CO LTD6PANASONIC CORP3
Top patents by PatentIndex Score
95 records- 0199US9519771B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2013·Granted Dec 13, 2016·74 cites·33 claims
- 0299US9495531B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2016·Granted Nov 15, 2016·69 cites·36 claims
- 0399US9329771B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2014·Granted May 3, 2016·84 cites·33 claims
- 0499US9304624B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2014·Granted Apr 5, 2016·72 cites·36 claims
- 0599US9250795B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2013·Granted Feb 2, 2016·81 cites·39 claims
- 0699US9134896B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2013·Granted Sep 15, 2015·70 cites·30 claims
- 0799US9038167B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2013·Granted May 19, 2015·79 cites·36 claims
- 0899US8943580B2Embedded authentication systems in an electronic deviceFADELL ANTHONY·Filed 2008·Granted Jan 27, 2015·114 cites·51 claims
- 0999US8788838B1Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2014·Granted Jul 22, 2014·109 cites·30 claims
- 1099US8782775B2Embedded authentication systems in an electronic deviceFADELL ANTHONY·Filed 2008·Granted Jul 15, 2014·135 cites·21 claims
- 1198US9274647B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2015·Granted Mar 1, 2016·70 cites·42 claims
- 1298US9128601B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2015·Granted Sep 8, 2015·64 cites·30 claims
- 1398US8924715B2Methods and apparatus for storage and execution of access control clientsSCHELL STEPHAN V·Filed 2011·Granted Dec 30, 2014·50 cites·26 claims
- 1498US8555067B2Methods and apparatus for delivering electronic identification components over a wireless networkSCHELL STEPHAN V·Filed 2011·Granted Oct 8, 2013·65 cites·20 claims
- 1598US5260968AMethod and apparatus for multiplexing communications signals through blind adaptive spatial filteringUNIV CALIFORNIA·Filed 1992·Granted Nov 9, 1993·270 cites·21 claims
- 1697US9953152B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2016·Granted Apr 24, 2018·11 cites·66 claims
- 1797US8666368B2Wireless network authentication apparatus and methodsSCHELL STEPHAN V·Filed 2010·Granted Mar 4, 2014·44 cites·20 claims
- 1896US10956550B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2019·Granted Mar 23, 2021·5 cites·24 claims
- 1996US10275585B2Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2017·Granted Apr 30, 2019·9 cites·36 claims
- 2096US9100810B2Management systems for multiple access control entitiesSCHELL STEPHAN V·Filed 2011·Granted Aug 4, 2015·20 cites·24 claims
- 2196US6734724B1Power control and modulation of switched-mode power amplifiers with one or more stagesTROPIAN INC·Filed 2000·Granted May 11, 2004·71 cites·24 claims
- 2295US8942644B2Systems and methods for protecting microelectromechanical systems switches from radio-frequency signals using switching circuitrySCHELL STEPHAN V·Filed 2011·Granted Jan 27, 2015·25 cites·17 claims
- 2394US8996002B2Apparatus and methods for provisioning subscriber identity data in a wireless networkRODGERS CLIVE EDWARD·Filed 2010·Granted Mar 31, 2015·42 cites·20 claims
- 2494US6983025B2High quality power ramping in a communications transmitterTROPIAN INC·Filed 2001·Granted Jan 3, 2006·64 cites·33 claims
- 2594US6751265B1Method and system of amplitude modulation using dual/split channel unequal amplificationTROPIAN INC·Filed 2000·Granted Jun 15, 2004·92 cites·23 claims
- 2694US6653896B2Differential rf/microwave power amplifier using independent synchronized polar modulatorsTROPIAN INC·Filed 2001·Granted Nov 25, 2003·76 cites·27 claims
- 2793US10327135B2Access data provisioning apparatus and methodsAPPLE INC·Filed 2017·Granted Jun 18, 2019·6 cites·28 claims
- 2893US8660608B2Apparatus and methods for recordation of device history across multiple software emulationsSCHELL STEPHAN V·Filed 2011·Granted Feb 25, 2014·11 cites·22 claims
- 2993US6844776B2Power control and modulation of switched-mode power amplifiers with one or more stagesTROPIAN INC·Filed 2003·Granted Jan 18, 2005·42 cites·28 claims
- 3092US9532219B2Methods and apparatus for storage and execution of access control clientsAPPLE INC·Filed 2014·Granted Dec 27, 2016·9 cites·20 claims
- 3192US9344832B2Methods and apparatus for delivering electronic identification components over a wireless networkAPPLE INC·Filed 2015·Granted May 17, 2016·6 cites·20 claims
- 3292US9100393B2Simulacrum of physical security device and methodsSCHELL STEPHAN V·Filed 2011·Granted Aug 4, 2015·15 cites·15 claims
- 3392US7158494B2Multi-mode communications transmitterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 2, 2007·58 cites·21 claims
- 3491US9877194B2Methods and apparatus for delivering electronic identification components over a wireless networkAPPLE INC·Filed 2016·Granted Jan 23, 2018·5 cites·20 claims
- 3590US10200853B2Management systems for multiple access control entitiesAPPLE INC·Filed 2015·Granted Feb 5, 2019·5 cites·21 claims
- 3690US8966262B2Methods and apparatus for delivering electronic identification components over a wireless networkAPPLE INC·Filed 2013·Granted Feb 24, 2015·9 cites·18 claims
- 3790US8913992B2Methods and apparatus for access data recovery from a malfunctioning deviceSCHELL STEPHAN V·Filed 2011·Granted Dec 16, 2014·12 cites·20 claims
- 3890US7054385B2Reduction of average-to-minimum power ratio in communications signalsTROPIAN INC·Filed 2001·Granted May 30, 2006·63 cites·22 claims
- 3990US5299148ASelf-coherence restoring signal extraction and estimation of signal direction of arrivalUNIV CALIFORNIA·Filed 1990·Granted Mar 29, 1994·125 cites·41 claims
- 4089US9723481B2Access data provisioning apparatus and methodsSCHELL STEPHAN V·Filed 2011·Granted Aug 1, 2017·11 cites·20 claims
- 4189US9338649B2Wireless network authentication apparatus and methodsAPPLE INC·Filed 2014·Granted May 10, 2016·7 cites·20 claims
- 4288US10911944B2Access data provisioning apparatus and methodsAPPLE INC·Filed 2019·Granted Feb 2, 2021·4 cites·20 claims
- 4387US11051159B2Management systems for multiple access control entitiesAPPLE INC·Filed 2019·Granted Jun 29, 2021·3 cites·20 claims
- 4487US8738729B2Virtual access module distribution apparatus and methodsHAGGERTY DAVID T·Filed 2011·Granted May 27, 2014·7 cites·17 claims
- 4587US8417983B2Adjusting a device clock source to reduce wireless communication interferenceMACHNICKI ERIK P·Filed 2010·Granted Apr 9, 2013·11 cites·25 claims
- 4687US7755422B2Power control and modulation of switched-mode power amplifiers with one or more stagesPANASONIC CORP·Filed 2007·Granted Jul 13, 2010·10 cites·12 claims
- 4787US7630707B2Wireless communication out of range indicationAPPLE INC·Filed 2006·Granted Dec 8, 2009·13 cites·33 claims
- 4886US2025298879A1Embedded authentication systems in an electronic deviceAPPLE INC·Filed 2025·Application pending·0 cites
- 4985US9854527B2User equipment transmit duty cycle controlAPPLE INC·Filed 2015·Granted Dec 26, 2017·3 cites·20 claims
- 5085US9560693B2Methods and apparatus for access data recovery from a malfunctioning deviceAPPLE INC·Filed 2014·Granted Jan 31, 2017·6 cites·20 claims
Showing the top 50 of 95 patent records by PatentIndex Score.
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