Inventor · disambiguated record
Johan Piper
Also filed as: PIPER JOHAN · PIPER JOHAN L
19 granted patents·4 pending applications·144 citations·filing 2006–2025
94Inventor score
Files withAPPLE INC10CAMBRIDGE SEMICONDUCTOR LTD5POWER INTEGRATIONS INC5COULSON DAVID ROBERT2PIPER JOHAN1
Top patents by PatentIndex Score
23 records- 0194US7567445B2Switch mode power supply controllersCAMBRIDGE SEMICONDUCTOR LTD·Filed 2006·Granted Jul 28, 2009·45 cites·17 claims
- 0293US7342812B2Switch mode power supply systemsCAMBRIDGE SEMICONDUCTOR LTD·Filed 2006·Granted Mar 11, 2008·25 cites·22 claims
- 0390US10971086B2Pulsed backlight systems and methodsAPPLE INC·Filed 2019·Granted Apr 6, 2021·5 cites·15 claims
- 0486US11081070B2Backlight systems and methods for electronic device displaysAPPLE INC·Filed 2019·Granted Aug 3, 2021·4 cites·21 claims
- 0583US8446746B2Switch mode power supply controller with feedback signal decay sensingCOULSON DAVID ROBERT·Filed 2010·Granted May 21, 2013·8 cites·35 claims
- 0682US10063152B2Storage time controlPOWER INTEGRATIONS INC·Filed 2017·Granted Aug 28, 2018·3 cites·25 claims
- 0781US7583519B2Switch mode power supply systemsCAMBRIDGE SEMICONDUCTOR LTD·Filed 2008·Granted Sep 1, 2009·9 cites·8 claims
- 0880US9531264B2Auxiliary rechargePOWER INTEGRATIONS INC·Filed 2014·Granted Dec 27, 2016·6 cites·30 claims
- 0980US7525823B2Switch mode power supply systemsCAMBRIDGE SEMICONDUCTOR LTD·Filed 2006·Granted Apr 28, 2009·10 cites·36 claims
- 1074US9735663B2BJT drive schemePOWER INTEGRATIONS INC·Filed 2014·Granted Aug 15, 2017·4 cites·17 claims
- 1172US11099804B2Panel driver interface systems and methods for electronic device displaysAPPLE INC·Filed 2019·Granted Aug 24, 2021·1 cites·24 claims
- 1271US8199538B2Switched mode power supply with improved current sensingPIPER JOHAN·Filed 2009·Granted Jun 12, 2012·12 cites·18 claims
- 1369US10134334B2Luminance uniformity correction for display panelsAPPLE INC·Filed 2016·Granted Nov 20, 2018·1 cites·19 claims
- 1468US9621050B2Storage time controlPOWER INTEGRATIONS INC·Filed 2014·Granted Apr 11, 2017·2 cites·41 claims
- 1568US7944722B2Switch mode power supply controller with feedback signal decay sensingCAMBRIDGE SEMICONDUCTOR LTD·Filed 2009·Granted May 17, 2011·7 cites·25 claims
- 1667US10235936B2Luminance uniformity correction for display panelsAPPLE INC·Filed 2016·Granted Mar 19, 2019·1 cites·20 claims
- 1764US12272321B2Method and apparatus for LED driver to reduce cross talk or flickerAPPLE INC·Filed 2023·Granted Apr 8, 2025·0 cites·20 claims
- 1863US12073782B2Direct led temperature sensing systems and methodsAPPLE INC·Filed 2023·Granted Aug 27, 2024·0 cites·20 claims
- 1955US2024402390A1Model-Based Method of Estimating Optical Electro-Chemical Cell State Via Electrical InputAPPLE INC·Filed 2024·Application pending·0 cites
- 2054US2025328010A1Light Projector Module with Directly Bonded and Orthogonal Rigid ComponentsAPPLE INC·Filed 2025·Application pending·0 cites
- 2151US2017063214A1Auxiliary rechargePOWER INTEGRATIONS INC·Filed 2016·Application pending·0 cites
- 2250US8415832B2Cable compensationCOULSON DAVID ROBERT·Filed 2009·Granted Apr 9, 2013·1 cites·20 claims
- 2348US2025336906A1Stacked Chip Assemblies for Display SystemsAPPLE INC·Filed 2025·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →