Inventor · disambiguated record
Lei Du
Also filed as: DU LEI · DU LEI-JIE
91 granted patents·59 pending applications·457 citations·filing 2005–2025
99Inventor score
Files withNOKIA TECHNOLOGIES OY37DU LEI17NOKIA SOLUTIONS & NETWORKS OY14CHENGDU MONOLITHIC POWER SYS5KUANG NAIXING5
Top patents by PatentIndex Score
150 records- 0199US12336045B1Measurement relaxationNOKIA TECHNOLOGIES OY·Filed 2025·Granted Jun 17, 2025·2 cites·8 claims
- 0298US7522576B2Distributed wireless access method based on network allocation vector table and apparatus of the sameNTT DOCOMO INC·Filed 2005·Granted Apr 21, 2009·117 cites·29 claims
- 0397US8581518B2Triac dimmer compatible switching mode power supply and method thereofKUANG NAIXING·Filed 2011·Granted Nov 12, 2013·75 cites·19 claims
- 0493US11177983B2Cross link interference measurement conditions reportingNOKIA TECHNOLOGIES OY·Filed 2020·Granted Nov 16, 2021·3 cites·17 claims
- 0592US7907582B2Method and apparatus for access point selection in wireless LANNTT DOCOMO INC·Filed 2007·Granted Mar 15, 2011·24 cites·34 claims
- 0691US8948751B2Methods and apparatus for radio resource controlNOKIA SIEMENS NETWORKS OY·Filed 2014·Granted Feb 3, 2015·9 cites·18 claims
- 0791US8768385B2Radio impacts due to group triggering and paging and solutions for group triggering and pagingCHANDRAMOULI DEVAKI·Filed 2011·Granted Jul 1, 2014·15 cites·24 claims
- 0890US8681724B2Discontinuous reception in carrier aggregation wireless communication systemsDU LEI·Filed 2009·Granted Mar 25, 2014·23 cites·20 claims
- 0989US9035566B2Light emitting diode driver systems and associated methods of controlDU LEI·Filed 2011·Granted May 19, 2015·12 cites·13 claims
- 1088US8738075B2Methods and apparatus for radio resource controlZHANG YI·Filed 2011·Granted May 27, 2014·7 cites·20 claims
- 1187US8184594B2Handover processing method, eNB and network communication system thereofLI MINGJU·Filed 2009·Granted May 22, 2012·20 cites·19 claims
- 1286US8265035B2Method and apparatus for reselecting cell in mobile communication systemDU LEI·Filed 2009·Granted Sep 11, 2012·13 cites·35 claims
- 1386US7965651B2Method and apparatus for setting active period starting point for user equipmentNTT DOCOMO INC·Filed 2008·Granted Jun 21, 2011·17 cites·11 claims
- 1485US10538978B1Washpipe seal assemblyCLARK SEALS LTD·Filed 2017·Granted Jan 21, 2020·5 cites·40 claims
- 1585US9538454B2Extended access barring and network sharingHWANG WOONHEE·Filed 2011·Granted Jan 3, 2017·7 cites·18 claims
- 1685US8525423B2Circuitry for driving light emitting diodes and associated methodsYU BO·Filed 2011·Granted Sep 3, 2013·11 cites·12 claims
- 1784US11133682B2Battery charging system and a method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2019·Granted Sep 28, 2021·4 cites·20 claims
- 1884US8952632B2Driver systems for driving light emitting diodes and associated driving methodsDU LEI·Filed 2011·Granted Feb 10, 2015·7 cites·10 claims
- 1983US8907592B2Power systems for driving light emitting diodes and associated methods of controlHU JIN·Filed 2011·Granted Dec 9, 2014·7 cites·12 claims
- 2083US8576588B2Switching mode power supply with primary side controlKUANG NAIXING·Filed 2011·Granted Nov 5, 2013·6 cites·20 claims
- 2183US8160048B2Method for accessing hybrid network, and gateway apparatus, wireless terminal and communication system thereofDU LEI·Filed 2006·Granted Apr 17, 2012·9 cites·22 claims
- 2282US11343671B2Handling of PDCP duplication and data recovery in new radio access technologyNOKIA TECHNOLOGIES OY·Filed 2017·Granted May 24, 2022·4 cites·21 claims
- 2382US8115402B2Method and apparatus for driving multiple parallel discharge lampsKUANG NAIXING·Filed 2009·Granted Feb 14, 2012·9 cites·9 claims
- 2479US11765629B2Connection setup method, user equipment, common central control node and communication systemNOKIA SOLUTIONS AND NETWORKS SYSTEM TECH BEIJING CO LTD·Filed 2021·Granted Sep 19, 2023·1 cites·7 claims
- 2579US8981666B2Light emitting element driving circuitYU BO·Filed 2011·Granted Mar 17, 2015·5 cites·19 claims
- 2679US2025202246A1Systems for balancing a battery group and associated methodsCHENGDU MONOLITHIC POWER SYS·Filed 2024·Application pending·0 cites
- 2779US2025202248A1Battery module for balancing a battery group and associated integrated control circuit and methodCHENGDU MONOLITHIC POWER SYS·Filed 2024·Application pending·0 cites
- 2878US9246662B2Mechanisms addressing dynamic component carrier change in relay systemsZHANG SHUN LIANG·Filed 2011·Granted Jan 26, 2016·5 cites·21 claims
- 2978US8958357B2Method and apparatus for facilitating relay node communicationsDALSGAARD LARS·Filed 2010·Granted Feb 17, 2015·5 cites·20 claims
- 3076US2025056661A1Monitoring downlink control information based on configuration information and status of cell discontinuous operationNOKIA TECHNOLOGIES OY·Filed 2024·Application pending·0 cites
- 3175US2025056658A1Monitoring downlink control information based on configuration information and status of cell discontinuous operationNOKIA TECHNOLOGIES OY·Filed 2024·Application pending·0 cites
- 3274US11172529B2Multi-connectivity establishment method, communication system, user equipment and access pointNOKIA SOLUTIONS AND NETWORKS SYSTEM TECH BEIJING CO LTD·Filed 2016·Granted Nov 9, 2021·2 cites·15 claims
- 3374US9420533B2Discontinuous receptionWU CHUNLI·Filed 2011·Granted Aug 16, 2016·3 cites·39 claims
- 3473US8598802B2Triac dimmer compatible WLED driving circuit and method thereofHUANG YONG·Filed 2010·Granted Dec 3, 2013·3 cites·14 claims
- 3571US9155012B2Method, apparatus, and related computer program product for load balancing in a relay networkREDANA SIMONE·Filed 2009·Granted Oct 6, 2015·4 cites·18 claims
- 3671US8311022B2Method for accessing hybrid network, and gateway apparatus, wireless terminal and communication system thereofDU LEI·Filed 2009·Granted Nov 13, 2012·3 cites·22 claims
- 3769US8368320B2Cold cathode fluorescent lamp driving circuits and associated methods of controlMONOLITHIC POWER SYSTEMS INC·Filed 2010·Granted Feb 5, 2013·2 cites·24 claims
- 3868US12507110B2Cell activationNOKIA TECHNOLOGIES OY·Filed 2024·Granted Dec 23, 2025·0 cites·20 claims
- 3968US2025357769A1System for balancing a battery group and balance control circuit and method thereofCHENGDU MONOLITHIC POWER SYS·Filed 2025·Application pending·0 cites
- 4067US2025365720A1Extended capability for transmission switchingNOKIA TECHNOLOGIES OY·Filed 2025·Application pending·0 cites
- 4166US9338736B2Methods and apparatus for radio resource controlCELLULAR COMMUNICATIONS EQUIPMENT LLC·Filed 2015·Granted May 10, 2016·1 cites·10 claims
- 4266US8604710B2Multi-mode dimming circuitYU BO·Filed 2011·Granted Dec 10, 2013·2 cites·17 claims
- 4365US10045281B2Method, apparatus and systemNOKIA SOLUTIONS & NETWORKS OY·Filed 2014·Granted Aug 7, 2018·1 cites·18 claims
- 4465US8553665B2Method for accessing hybrid network, and gateway apparatus, wireless terminal and communication system thereofDU LEI·Filed 2012·Granted Oct 8, 2013·1 cites·12 claims
- 4564US9578630B2Data transmissionDU LEI·Filed 2012·Granted Feb 21, 2017·1 cites·16 claims
- 4664US8767614B2Reporting buffering informationDU LEI·Filed 2009·Granted Jul 1, 2014·2 cites·24 claims
- 4764US2024376011A1Grain-boundary and surface-doped rare-earth zirconium-based ceramic material, preparation method therefor, and use thereofGRIREM HI TECH CO LTD·Filed 2024·Application pending·0 cites
- 4864US2025056272A1Devices, methods, apparatuses, and computer readable media for measuring multiple secondary cellsNOKIA TECHNOLOGIES OY·Filed 2024·Application pending·0 cites
- 4963US2025056445A1Devices, methods, apparatuses, and computer readable media for synchronization signal block measurementNOKIA TECHNOLOGIES OY·Filed 2024·Application pending·0 cites
- 5063US2025056657A1Mechanism for cell activationNOKIA TECHNOLOGIES OY·Filed 2024·Application pending·0 cites
Showing the top 50 of 150 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →