Inventor · disambiguated record
Yifeng Zhang
Also filed as: ZHANG YIFENG
47 granted patents·11 pending applications·270 citations·filing 2002–2024
98Inventor score
Top patents by PatentIndex Score
58 records- 0195USD998562SBluetooth earphone charging caseXU HAIMEI·Filed 2021·Granted Sep 12, 2023·24 cites·1 claims
- 0294USD990456SWireless earphoneXU HAIMEI·Filed 2021·Granted Jun 27, 2023·22 cites·1 claims
- 0392US10136735B2Systems and methods for air mattress temperature controlPOLYGROUP MACAU LTD BVI·Filed 2015·Granted Nov 27, 2018·17 cites·20 claims
- 0492US9960558B2Powered tree constructionPOLYGROUP MACAU LTD BVI·Filed 2017·Granted May 1, 2018·11 cites·16 claims
- 0588USD1003868SEarphones with charging caseXU HAIMEI·Filed 2021·Granted Nov 7, 2023·12 cites·1 claims
- 0688US11045012B2Inflatable airbed mattress internal support systemPOLYGROUP MACAU LTD BVI·Filed 2020·Granted Jun 29, 2021·3 cites·16 claims
- 0788US9794934B2Method and system for communicating in a wireless mesh networkNXP BV·Filed 2015·Granted Oct 17, 2017·12 cites·18 claims
- 0887US10653339B2Time and frequency domain based activity tracking systemNXP BV·Filed 2015·Granted May 19, 2020·10 cites·16 claims
- 0986US6670900B1Quadrature mismatch compensationKONINKL PHILIPS ELECTRONICS NV·Filed 2002·Granted Dec 30, 2003·54 cites·18 claims
- 1085US10327576B2Illumination system for an artificial treePOLYGROUP MACAU LTD BVI·Filed 2017·Granted Jun 25, 2019·5 cites·14 claims
- 1184USD942390SCharging caseZHANG YIFENG·Filed 2021·Granted Feb 1, 2022·9 cites·1 claims
- 1280US8009724B2Clear channel assessment (CCA) for UWB communications systemNXP BV·Filed 2005·Granted Aug 30, 2011·9 cites·6 claims
- 1379US12078317B2Electric lighting system and components, and charging and connection mechanisms thereofPOLYGROUP LTD MACAO COMMERCIAL OFFSHORE·Filed 2021·Granted Sep 3, 2024·2 cites·21 claims
- 1479US11193289B2Threaded attachment system for wall-mounted pool skimmerPOLYGROUP MACAU LTD BVI·Filed 2019·Granted Dec 7, 2021·3 cites·20 claims
- 1578US12454841B2Lighted inflatable apparatusPOLYGROUP MACAU LTD BVI·Filed 2024·Granted Oct 28, 2025·0 cites·21 claims
- 1678US8280340B2Clock generation for integrated radio frequency receiversXUAN PEIQI·Filed 2009·Granted Oct 2, 2012·10 cites·22 claims
- 1777USD1003867SEarphones with charging caseXU HAIMEI·Filed 2021·Granted Nov 7, 2023·6 cites·1 claims
- 1877US11353185B2Electric lighting system and components, and charging and connection mechanisms thereofPOLYGROUP LTD MACAO COMMERCIAL OFFSHORE·Filed 2019·Granted Jun 7, 2022·4 cites·16 claims
- 1977US10582778B2Inflatable airbed mattress internal support systemPOLYGROUP MACAU LTD BVI·Filed 2017·Granted Mar 10, 2020·3 cites·14 claims
- 2077US8422409B2System and method of duplex wireless audio link over broadcast channelsGUO HANGWEI·Filed 2010·Granted Apr 16, 2013·7 cites·14 claims
- 2175US7555051B2Method and device for estimating IQ imbalanceNXP BV·Filed 2004·Granted Jun 30, 2009·16 cites·17 claims
- 2273US11920369B2Lighted inflatable apparatusPOLYGROUP MACAU LTD BVI·Filed 2023·Granted Mar 5, 2024·0 cites·20 claims
- 2373US2024122366A1Inflatable airbed mattress internal support systemPOLYGROUP MACAU LTD BVI·Filed 2023·Application pending·0 cites
- 2472US10709278B2Illumination system for an artificial treePOLYGROUP MACAU LTD BVI·Filed 2019·Granted Jul 14, 2020·1 cites·20 claims
- 2572US10574009B2Powered tree constructionPOLYGROUP MACAU LTD BVI·Filed 2018·Granted Feb 25, 2020·2 cites·22 claims
- 2669US8712354B2Radio transmitter and radio receiver with channel condition assessmentZHANG YIFENG·Filed 2012·Granted Apr 29, 2014·3 cites·12 claims
- 2769US7440738B2Automatic gain control with two power detectorsNXP BV·Filed 2004·Granted Oct 21, 2008·11 cites·13 claims
- 2867US11063399B2Powered tree constructionPOLYGROUP MACAU LTD BVI·Filed 2019·Granted Jul 13, 2021·0 cites·18 claims
- 2965USD1019612SCombined earphones with charging caseZHANG YIFENG·Filed 2022·Granted Mar 26, 2024·3 cites·1 claims
- 3065US11857078B2Inflatable airbed mattress internal support systemPOLYGROUP MACAU LTD BVI·Filed 2021·Granted Jan 2, 2024·0 cites·19 claims
- 3165US10472841B2Lighted inflatable apparatusPOLYGROUP MACAU LTD BVI·Filed 2016·Granted Nov 12, 2019·1 cites·16 claims
- 3263US7647069B2Single oscillator DSSS and OFDM radio receiverNXP BV·Filed 2002·Granted Jan 12, 2010·9 cites·13 claims
- 3360US10400465B2Threaded attachment system for wall-mounted pool skimmerPOLYGROUP MACAU LTD BVI·Filed 2015·Granted Sep 3, 2019·1 cites·18 claims
- 3458US11598111B2Lighted inflatable apparatusPOLYGROUP MACAU LTD BVI·Filed 2019·Granted Mar 7, 2023·0 cites·18 claims
- 3554US10743697B2Universal tree stand systems and methodsPOLYGROUP MACAU LTD (BVI)·Filed 2018·Granted Aug 18, 2020·0 cites·19 claims
- 3651US10119986B2Time and frequency domain based step counterNXP BV·Filed 2015·Granted Nov 6, 2018·0 cites·20 claims
- 3751US2025003541A1Connecting member, connecting pipe structure and detachable frameDONGGUAN POLYFILM PLASTIC PRODUCTS COMPANY LTD·Filed 2024·Application pending·0 cites
- 3850US10550021B2System and method to control H2O2 level in advanced oxidation processesUNIV DANMARKS TEKNISKE·Filed 2015·Granted Feb 4, 2020·0 cites·12 claims
- 3949US10143322B2Universal tree stand systems and methodsPOLYGROUP MACAU LTD BVI·Filed 2017·Granted Dec 4, 2018·0 cites·7 claims
- 4048US10479597B2Tamper-proof case systems and methodsCITADEL CASING LTD·Filed 2018·Granted Nov 19, 2019·0 cites·20 claims
- 4148US8238844B2Radio transmitter and radio receiver with channel condition assessmentZHANG YIFENG·Filed 2009·Granted Aug 7, 2012·0 cites·17 claims
- 4247US11411479B2Linear vibration motor with buffer blocksLANTO ELECTRONIC LTD·Filed 2018·Granted Aug 9, 2022·0 cites·17 claims
- 4347US11218741B2Method, apparatus, electronic device and computer-readable storage medium for video bufferingALIBABA GROUP HOLDING LTD·Filed 2020·Granted Jan 4, 2022·0 cites·18 claims
- 4446US2011034139A1System and Method of Automatic Tuning Adjustment for Portable Radio Frequency ReceiversQUINTIC HOLDINGS·Filed 2009·Application pending·0 cites
- 4546US2010067629A1Performance in a time-frequency interleaved orthogonal frequency division multiplexing systemKONINKL PHILIPS ELECTRONICS NV·Filed 2007·Application pending·0 cites
- 4646US2007202911A1System And Method For Energy Efficient Signal Detection In A Wireless Network DeviceKONINKLIKE PHILIPS ELECTRONICS·Filed 2004·Application pending·0 cites
- 4745US2013171947A1System and method of duplex wireless audio link over broadcast channelsQUINTIC HOLDINGS·Filed 2013·Application pending·0 cites
- 4843US11461753B2Automatic vending method and apparatus, and computer-readable storage mediumBEIJING JINGDONG SHANGKE INFORMATION TECHNOLOGY CO LTD·Filed 2019·Granted Oct 4, 2022·0 cites·8 claims
- 4942US8644532B2Channel coordination between a wireless earphone and a transmitterZHANG YIFENG·Filed 2008·Granted Feb 4, 2014·0 cites·7 claims
- 5042US8478218B2Frequency modulation (FM) clear channel scanning system and method of using sameZHANG YIFENG·Filed 2008·Granted Jul 2, 2013·0 cites·35 claims
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →