Inventor · disambiguated record
William C. Athas
Also filed as: ATHAS JR WILLIAM C · ATHAS WILLIAM · ATHAS WILLIAM C
79 granted patents·9 pending applications·1,320 citations·filing 1988–2025
99Inventor score
Top patents by PatentIndex Score
88 records- 0199US6661355B2Methods and apparatus for constant-weight encoding & decodingAPPLE COMPUTER·Filed 2000·Granted Dec 9, 2003·190 cites·143 claims
- 0298US7202712B2Multiphase resonant pulse generatorsUNIV SOUTHERN CALIFORNIA·Filed 2006·Granted Apr 10, 2007·43 cites·15 claims
- 0393US10697830B1Multicomb light source and spectrometerKANGAS MIIKKA M·Filed 2017·Granted Jun 30, 2020·11 cites·19 claims
- 0493US8624560B2Controlling battery charging based on current, voltage and temperatureUNGAR P JEFFREY·Filed 2009·Granted Jan 7, 2014·66 cites·24 claims
- 0593US7872539B1Energy efficient waveform generation using tuned resonatorsATHAS WILLIAM C·Filed 2010·Granted Jan 18, 2011·9 cites·21 claims
- 0692US8143851B2Power source having a parallel cell topologyGREENING THOMAS CHARLES·Filed 2008·Granted Mar 27, 2012·32 cites·21 claims
- 0792US7430676B2Method and apparatus for changing the clock frequency of a memory systemAPPLE INC·Filed 2006·Granted Sep 30, 2008·27 cites·17 claims
- 0892US7340622B2Method and apparatus for selectively increasing the operating speed of an electronic circuitAPPLE INC·Filed 2006·Granted Mar 4, 2008·25 cites·30 claims
- 0992US4937791AHigh performance dynamic ram interfaceCALIFORNIA INST OF TECHN·Filed 1988·Granted Jun 26, 1990·122 cites·13 claims
- 1091US9917440B2Reconfigurable multiple-output power-delivery systemAPPLE INC·Filed 2015·Granted Mar 13, 2018·10 cites·19 claims
- 1191US7681013B1Method for variable length decoding using multiple configurable look-up tablesAPPLE INC·Filed 2001·Granted Mar 16, 2010·75 cites·67 claims
- 1291US7171570B2Method and apparatus for selectively increasing the operating speed of an electronic circuitAPPLE COMPUTER·Filed 2004·Granted Jan 30, 2007·55 cites·36 claims
- 1390US9831672B2Power delivery in a multiple-output systemAPPLE INC·Filed 2015·Granted Nov 28, 2017·9 cites·24 claims
- 1490US8134336B2Method and system for charging a series batteryMICHALSKE STEVEN C·Filed 2009·Granted Mar 13, 2012·39 cites·28 claims
- 1589US9071071B2Diffusion-limited adaptive battery chargingAPPLE INC·Filed 2014·Granted Jun 30, 2015·11 cites·17 claims
- 1689US8244296B2Dynamic thermal control for wireless transceiversDORSEY JOHN G·Filed 2008·Granted Aug 14, 2012·18 cites·21 claims
- 1788US8170606B2Dynamic thermal control for wireless transceiversDORSEY JOHN G·Filed 2008·Granted May 1, 2012·16 cites·23 claims
- 1888US5559478AHighly efficient, complementary, resonant pulse generationUNIV SOUTHERN CALIFORNIA·Filed 1995·Granted Sep 24, 1996·92 cites·26 claims
- 1988US5473526ASystem and method for power-efficient charging and discharging of a capacitive load from a single sourceUNIV SOUTHERN CALIFORNIA·Filed 1994·Granted Dec 5, 1995·68 cites·11 claims
- 2087US8754611B2Diffusion-limited adaptive battery chargingGREENING THOMAS C·Filed 2008·Granted Jun 17, 2014·24 cites·8 claims
- 2187USRE37552ESystem and method for power-efficient charging and discharging of a capacitive load from a single sourceUNIV SOUTHERN CALIFORNIA·Filed 1997·Granted Feb 19, 2002·42 cites·12 claims
- 2286US8330417B2Power source having a parallel cell topologyATHAS WILLIAM·Filed 2012·Granted Dec 11, 2012·9 cites·20 claims
- 2385US10044210B2Diffusion-limited adaptive battery chargingAPPLE INC·Filed 2015·Granted Aug 7, 2018·4 cites·21 claims
- 2485US8933665B2Balancing voltages between battery banksATHAS WILLIAM C·Filed 2012·Granted Jan 13, 2015·9 cites·19 claims
- 2585US7663618B2Power-efficient, pulsed driving of capacitive loads to controllable voltage levelsUNIV SOUTHERN CALIFORNIA·Filed 2005·Granted Feb 16, 2010·7 cites·16 claims
- 2684US7479838B1Energy efficient waveform generation using tuned resonatorsATHAS WILLIAM C·Filed 2006·Granted Jan 20, 2009·9 cites·14 claims
- 2783US7689846B1Method and apparatus for increasing the operating frequency of an electronic circuitAPPLE INC·Filed 2005·Granted Mar 30, 2010·9 cites·18 claims
- 2882US8346299B2Dynamic thermal control for wireless transceiversAPPLE INC·Filed 2012·Granted Jan 1, 2013·5 cites·25 claims
- 2981US11639944B2Methods and apparatus for detecting individual health related eventsAPPLE INC·Filed 2020·Granted May 2, 2023·1 cites·51 claims
- 3080US12352776B2Methods and apparatus for detecting individual health related eventsAPPLE INC·Filed 2023·Granted Jul 8, 2025·0 cites·20 claims
- 3180US12254147B2Electronic device display with array of discrete light-emitting diodesAPPLE INC·Filed 2023·Granted Mar 18, 2025·0 cites·20 claims
- 3279US6844833B2Methods and apparatus for constant-weight encoding and decodingAPPLE COMPUTER·Filed 2003·Granted Jan 18, 2005·19 cites·33 claims
- 3378US8541999B2Controlling power loss in a switched-capacitor power converterATHAS WILLIAM C·Filed 2010·Granted Sep 24, 2013·5 cites·16 claims
- 3478US7005893B1High-performance clock-powered logicUNIV SOUTHERN CALIFORNIA·Filed 2000·Granted Feb 28, 2006·22 cites·29 claims
- 3578US2025181182A1Electronic Device Display With Array of Discrete Light-Emitting DiodesAPPLE INC·Filed 2025·Application pending·0 cites
- 3676US5047917AApparatus for intrasystem communications within a binary n-cube including buffer lock bitCALIFORNIA INST OF TECHN·Filed 1989·Granted Sep 10, 1991·63 cites·7 claims
- 3775US6848032B2Pipelining cache-coherence operations in a shared-memory multiprocessing systemAPPLE COMPUTER·Filed 2002·Granted Jan 25, 2005·20 cites·20 claims
- 3875US6813719B2Method and apparatus for increasing the operating frequency of an electronic circuitAPPLE COMPUTER·Filed 2001·Granted Nov 2, 2004·19 cites·33 claims
- 3974US8730251B2Switching video streams for a display without a visible interruptionMATHEW BINU·Filed 2010·Granted May 20, 2014·3 cites·17 claims
- 4073US7982548B2Resonant oscillator with oscillation-startup circuitryAPPLE INC·Filed 2009·Granted Jul 19, 2011·6 cites·21 claims
- 4172US8855459B2Method and apparatus for prolonging battery life of a media playerMILLET TIMOTHY J·Filed 2008·Granted Oct 7, 2014·5 cites·23 claims
- 4272US8575896B2Parallel battery architecture with shared bidirectional converterGREENING THOMAS C·Filed 2009·Granted Nov 5, 2013·10 cites·19 claims
- 4370US11669178B2Electronic device display with array of discrete light-emitting diodesAPPLE INC·Filed 2020·Granted Jun 6, 2023·0 cites·17 claims
- 4470US7948187B2Electronically controlling acoustic energy from piezoelectric transformersAPPLE INC·Filed 2007·Granted May 24, 2011·3 cites·23 claims
- 4569US7483803B2Methods and apparatuses for calibrating sensorsAPPLE INC·Filed 2006·Granted Jan 27, 2009·4 cites·21 claims
- 4669US7176712B2Line reflection reduction with energy-recovery driverUNIV SOUTHERN CALIFORNIA·Filed 2005·Granted Feb 13, 2007·2 cites·21 claims
- 4767US6966008B2Method and apparatus for increasing the operating frequency of an electronic circuitAPPLE COMPUTER·Filed 2004·Granted Nov 15, 2005·8 cites·21 claims
- 4867US6946868B2Line reflection reduction with energy-recovery driverUNIV SOUTHERN CALIFORNIA·Filed 2004·Granted Sep 20, 2005·7 cites·24 claims
- 4966US8412105B2Electronic devices with radio-frequency collision resolution capabilitiesDORSEY JOHN GREGORY·Filed 2007·Granted Apr 2, 2013·4 cites·16 claims
- 5065US9413292B2Efficiency of clipped pulse generationATHAS WILLIAM C·Filed 2012·Granted Aug 9, 2016·2 cites·23 claims
Showing the top 50 of 88 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →