Inventor · disambiguated record
Liwei Ren
Also filed as: REN LIWEI
46 granted patents·6 pending applications·597 citations·filing 1999–2022
98Inventor score
Files withBEIJING VOYAGER TECH CO LTD9BEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD8REN LIWEI7TREND MICRO INC6DIDI RES AMERICA LLC5
Top patents by PatentIndex Score
52 records- 0194US8359472B1Document fingerprinting with asymmetric selection of anchor pointsTREND MICRO INC·Filed 2010·Granted Jan 22, 2013·36 cites·21 claims
- 0293US9009825B1Anomaly detector for computer networksTREND MICRO INC·Filed 2013·Granted Apr 14, 2015·42 cites·20 claims
- 0393US7950062B1Fingerprinting based entity extractionTREND MICRO INC·Filed 2007·Granted May 24, 2011·34 cites·16 claims
- 0492US10496842B1Multi-pronged file anomaly detection based on violation countsDIDI RES AMERICA LLC·Filed 2018·Granted Dec 3, 2019·8 cites·20 claims
- 0590US7031972B2Algorithms for block-level code alignment of software binary filesINNOPATH SOFTWARE INC·Filed 2003·Granted Apr 18, 2006·55 cites·10 claims
- 0689US8468595B1Content filtering prior to data encryptionHUANG FEI·Filed 2007·Granted Jun 18, 2013·29 cites·20 claims
- 0789US8321434B1Two tiered architecture of named entity recognition engineREN LIWEI·Filed 2007·Granted Nov 27, 2012·21 cites·15 claims
- 0889US8140664B2Graphical user interface based sensitive information and internal information vulnerability management systemHUANG SHU·Filed 2006·Granted Mar 20, 2012·43 cites·14 claims
- 0989US7392260B2Code alignment of binary filesINNOPATH SOFTWARE INC·Filed 2005·Granted Jun 24, 2008·19 cites·23 claims
- 1088US9098513B1Methods and systems for differencing orderly dependent filesREN LIWEI·Filed 2012·Granted Aug 4, 2015·14 cites·18 claims
- 1188US8862555B1Methods and apparatus for generating difference filesXU QIUER·Filed 2011·Granted Oct 14, 2014·28 cites·30 claims
- 1288US8498965B1Methods and apparatus for generating difference filesREN LIWEI·Filed 2010·Granted Jul 30, 2013·14 cites·24 claims
- 1387US9342697B1Scalable security policy architecture for data leakage preventionREN LIWEI·Filed 2009·Granted May 17, 2016·23 cites·20 claims
- 1487US7516130B2Matching engine with signature generationTREND MICRO INC·Filed 2006·Granted Apr 7, 2009·21 cites·10 claims
- 1586US8566317B1Apparatus and methods for scalable object clusteringREN LIWEI·Filed 2010·Granted Oct 22, 2013·10 cites·19 claims
- 1686US8490203B1Fingerprinting based entity extractionREN LIWEI·Filed 2011·Granted Jul 16, 2013·9 cites·12 claims
- 1785US8266150B1Scalable document signature search engineLIN YINGQIANG·Filed 2009·Granted Sep 11, 2012·22 cites·11 claims
- 1885US8051487B2Cascading security architectureTREND MICRO INC·Filed 2006·Granted Nov 1, 2011·17 cites·9 claims
- 1984US8782082B1Methods and apparatus for multiple-keyword matchingXU QIUER·Filed 2011·Granted Jul 15, 2014·10 cites·4 claims
- 2082US8606772B1Efficient multiple-keyword match technique with large dictionariesXU QIUER·Filed 2011·Granted Dec 10, 2013·8 cites·12 claims
- 2182US7089270B2Processing software images for use in generating difference filesINNOPATH SOFTWARE·Filed 2003·Granted Aug 8, 2006·36 cites·41 claims
- 2281US7860853B2Document matching engine using asymmetric signature generationPROVILLA INC·Filed 2008·Granted Dec 28, 2010·18 cites·20 claims
- 2380US9146704B1Document fingerprinting for mobile phonesLIN YUANHUNG·Filed 2011·Granted Sep 29, 2015·12 cites·16 claims
- 2478US9203623B1Apparatus and methods for keyword proximity matchingLIN YINGQIANG·Filed 2009·Granted Dec 1, 2015·11 cites·14 claims
- 2574US11557141B2Text document categorization using rules and document fingerprintsBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2019·Granted Jan 17, 2023·2 cites·20 claims
- 2671US11321467B2System and method for security analysisBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2019·Granted May 3, 2022·1 cites·18 claims
- 2768US9882768B1Methods and apparatus for file synchronization over a computer networkChen jian-ying·Filed 2012·Granted Jan 30, 2018·4 cites·17 claims
- 2867US11003767B2Multi-layer data model for security analyticsBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2018·Granted May 11, 2021·1 cites·19 claims
- 2966US2022189292A1Systems and methods for vehicle identificationBEIJING VOYAGER TECH CO LTD·Filed 2022·Application pending·0 cites
- 3065US10642977B1Benign file list generationDIDI RES AMERICA LLC·Filed 2018·Granted May 5, 2020·1 cites·14 claims
- 3164US10956669B2Expression recognition using character skippingBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2018·Granted Mar 23, 2021·1 cites·18 claims
- 3264US6775376B2Proxy database for element management system of telephone switching networkADC SERVICES FULFILLMENT INC·Filed 2003·Granted Aug 10, 2004·10 cites·20 claims
- 3363US11706027B2Systems and methods for managing a compromised autonomous vehicle serverBEIJING VOYAGER TECH CO LTD·Filed 2022·Granted Jul 18, 2023·0 cites·20 claims
- 3459US7747642B2Matching engine for querying relevant documentsTREND MICRO INC·Filed 2006·Granted Jun 29, 2010·2 cites·11 claims
- 3558US6512824B1Proxy database for element management system of telephone switching networkADC SERVICES FULFILLMENT INC·Filed 1999·Granted Jan 28, 2003·35 cites·6 claims
- 3657US11138000B2Tree delta encodingBEIJING VOYAGER TECH CO LTD·Filed 2018·Granted Oct 5, 2021·0 cites·20 claims
- 3756US11163555B2Tree delta encodingBEIJING VOYAGER TECH CO LTD·Filed 2018·Granted Nov 2, 2021·0 cites·20 claims
- 3856US11137999B2Tree delta encodingBEIJING VOYAGER TECH CO LTD·Filed 2018·Granted Oct 5, 2021·0 cites·20 claims
- 3955US11405206B2Systems and methods for managing a compromised autonomous vehicle serverBEIJING VOYAGER TECH CO LTD·Filed 2018·Granted Aug 2, 2022·0 cites·20 claims
- 4054US11250131B2Multi-purpose agent for endpoint scanningBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2019·Granted Feb 15, 2022·0 cites·18 claims
- 4153US11302182B2Systems and methods for vehicle identificationBEIJING VOYAGER TECH CO LTD·Filed 2018·Granted Apr 12, 2022·0 cites·20 claims
- 4252US8171002B2Matching engine with signature generationREN LIWEI·Filed 2009·Granted May 1, 2012·0 cites·12 claims
- 4348US11163948B2File fingerprint generationBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2018·Granted Nov 2, 2021·0 cites·16 claims
- 4447US11442722B2Tree-conversion delta encodingBEIJING VOYAGER TECH CO LTD·Filed 2018·Granted Sep 13, 2022·0 cites·17 claims
- 4547US2020125532A1Fingerprints for open source code governanceDIDI RES AMERICA LLC·Filed 2019·Application pending·0 cites
- 4645US11418351B2Systems and methods for managing a compromised autonomous vehicle serverBEIJING VOYAGER TECH CO LTD·Filed 2018·Granted Aug 16, 2022·0 cites·19 claims
- 4744US2020401977A1System and method for evaluationDIDI RES AMERICA LLC·Filed 2019·Application pending·0 cites
- 4843US2005010870A1Post-processing algorithm for byte-level file differencingFiled 2003·Application pending·0 cites
- 4942US2005010576A1File differencing and updating enginesFiled 2003·Application pending·0 cites
- 5041US11012518B2Systems and methods for managing networked communication sessionsBEIJING DIDI INFINITY TECHNOLOGY & DEV CO LTD·Filed 2018·Granted May 18, 2021·0 cites·12 claims
Showing the top 50 of 52 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →