Inventor · disambiguated record
Qingfeng Li
Also filed as: LI QINGFENG
29 granted patents·12 pending applications·282 citations·filing 2000–2024
96Inventor score
Files withLI QINGFENG11ALIBABA GROUP HOLDING LTD5FERREN BRAN2SHANGHAI UNITED IMAGING INTELLIGENCE CO LTD2SILICON OPTRONICS INC2
Top patents by PatentIndex Score
41 records- 0195US8434780B2RollatorLI QINGFENG·Filed 2010·Granted May 7, 2013·32 cites·5 claims
- 0294US7559560B2Magic rollatorGENTEEL HOMECARE PRODUCTS CO L·Filed 2006·Granted Jul 14, 2009·63 cites·8 claims
- 0390US11615535B2Systems and methods for image processingSHANGHAI UNITED IMAGING INTELLIGENCE CO LTD·Filed 2021·Granted Mar 28, 2023·2 cites·20 claims
- 0490US6946211B1Polymer electrolyte membrane fuel cellsDANISH POWER SYSTEMS APS·Filed 2000·Granted Sep 20, 2005·78 cites·36 claims
- 0589USD962129SWalkerDELATORRE ADILSON·Filed 2020·Granted Aug 30, 2022·17 cites·1 claims
- 0688USD940601SRollatorLI QINGFENG·Filed 2020·Granted Jan 11, 2022·12 cites·1 claims
- 0783US9588648B2Providing history-based data processingALIBABA GROUP HOLDING LTD·Filed 2014·Granted Mar 7, 2017·5 cites·23 claims
- 0883US9280516B2Method and system to validate wired sensorsJIANG JIN·Filed 2012·Granted Mar 8, 2016·7 cites·15 claims
- 0983US8803868B2Power conservation for mobile device displaysFERREN BRAN·Filed 2013·Granted Aug 12, 2014·6 cites·5 claims
- 1082USD977373SRollatorLI QINGFENG·Filed 2020·Granted Feb 7, 2023·8 cites·1 claims
- 1181US11697813B2Pharmaceutical compositions and methods of use for activation of human fibroblast and myofibroblast apoptosisSIRNAOMICS INC·Filed 2017·Granted Jul 11, 2023·2 cites·11 claims
- 1276US8446398B2Power conservation for mobile device displaysFERREN BRAN·Filed 2009·Granted May 21, 2013·4 cites·22 claims
- 1375US11227390B2Systems and methods for image processingSHANGHAI UNITED IMAGING INTELLIGENCE CO LTD·Filed 2019·Granted Jan 18, 2022·2 cites·15 claims
- 1469USD690884SAnti-vibration dipped gloveLI QINGFENG·Filed 2011·Granted Oct 1, 2013·16 cites·1 claims
- 1568US2025346898A1Linkage Modified Oligomeric Compounds and Uses ThereofIONIS PHARMACEUTICALS INC·Filed 2023·Application pending·0 cites
- 1667USD1036875SShower chairLI QINGFENG·Filed 2021·Granted Jul 30, 2024·3 cites·1 claims
- 1766USD1073310SSuitcaseLI QINGFENG·Filed 2023·Granted May 6, 2025·2 cites·1 claims
- 1866US2025199134A1Control device and operation method thereofSILICON OPTRONICS INC·Filed 2024·Application pending·0 cites
- 1966US2025199124A1Data processing method and deviceSILICON OPTRONICS INC·Filed 2024·Application pending·0 cites
- 2065USD937167SMulti-function door step for carLISHUI CITY MAIERSI TRADING CO LTD·Filed 2021·Granted Nov 30, 2021·4 cites·1 claims
- 2163US2020402055A1Providing history-based data processingALIBABA GROUP HOLDING LTD·Filed 2020·Application pending·0 cites
- 2260USD891309SKnee rest walkerLI QINGFENG·Filed 2019·Granted Jul 28, 2020·7 cites·1 claims
- 2358US10748152B2Providing history-based data processingALIBABA GROUP HOLDING LTD·Filed 2017·Granted Aug 18, 2020·0 cites·22 claims
- 2456US2023028798A1Adipose tissue cryopreservation protective agentSHANGHAI 9TH PEOPLES HOSPITAL SHANGHAI JIAOTONG UNIV SCHOOL MEDICINE·Filed 2020·Application pending·0 cites
- 2555US9716752B2Method and apparatus for data exchange based on user statusALIBABA GROUP HOLDING LTD·Filed 2014·Granted Jul 25, 2017·0 cites·20 claims
- 2655US2024079397A1LED Display Module and LED Display DeviceSHENZHEN LEYARD OPTO ELECTRONIC CO LTD·Filed 2023·Application pending·0 cites
- 2754US2024398051A1Glove structureJOHN ENGINE SPORTS PRODUCTS INC·Filed 2022·Application pending·0 cites
- 2853USD1033278SRollator frameLI QINGFENG·Filed 2022·Granted Jul 2, 2024·1 cites·1 claims
- 2953US11814737B2Process for producing alloy nanoparticlesUNIV DANMARKS TEKNISKE·Filed 2019·Granted Nov 14, 2023·0 cites·41 claims
- 3053USD654636SAnti-vibration dipped gloveLI QINGFENG·Filed 2011·Granted Feb 21, 2012·8 cites·1 claims
- 3152US2023129245A1Method and system for laser welding of a semiconductor materialUNIV JENA FRIEDRICH SCHILLER·Filed 2021·Application pending·0 cites
- 3251US9888075B2Method and apparatus for data exchange based on user statusALIBABA GROUP HOLDING LTD·Filed 2017·Granted Feb 6, 2018·0 cites·20 claims
- 3351US2016149229A1Novel Non-Platinum Metal Catalyst MaterialUNIV DENMARK TECH DTU·Filed 2014·Application pending·0 cites
- 3445US7066324B2Sanitary cigarette caseYIN ZHIYONG·Filed 2001·Granted Jun 27, 2006·3 cites·3 claims
- 3543USD1057606SRollatorLI QINGFENG·Filed 2022·Granted Jan 14, 2025·0 cites·1 claims
- 3642US2024289929A1Methods and apparatus to perform mask-based depth enhancement for multi-view systemsINTEL CORP·Filed 2021·Application pending·0 cites
- 3739US12006501B2Composition of drug targets and method of using thereofSHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE·Filed 2017·Granted Jun 11, 2024·0 cites·4 claims
- 3835USD1097898SKnee supporting walkerLI QINGFENG·Filed 2022·Granted Oct 14, 2025·0 cites·1 claims
- 3933US2012270122A1Method of operating a direct dme fuel cell systemJENSEN JENS OLUF·Filed 2010·Application pending·0 cites
- 4030US9883917B2Skin dilatorSHANGHAI NINTH PEOPLES HOSPITAL AFFILIATED SHANGHAI JIAOTONG UNIV SCHOOL OF MEDICINE·Filed 2014·Granted Feb 6, 2018·0 cites·4 claims
- 4129US2017032398A1Method and apparatus for judging age brackets of usersBEIJING JINGDONG SHANGKE INFORMATION TECHNOLOGY CO LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →