Inventor · Sunnyvale, CA, US

Liwei Ren

46Patents
13h-index
25Co-inventors
81Inventor score

Filing activity: Aug 3, 1999 → Jun 13, 2022

Most-cited inventions

PatentTitleAreaCited byStatus
US7031972B2 Algorithms for block-level code alignment of software binary files Emerging Cross-Sectional Technologies 37 Expired
US9009825B1 Anomaly detector for computer networks Electricity 34 Active
US8140664B2 Graphical user interface based sensitive information and internal information vulnerability management system Electricity 33 Active
US8359472B1 Document fingerprinting with asymmetric selection of anchor points Physics 29 Active
US6512824B1 Proxy database for element management system of telephone switching network Electricity 23 Expired
US7950062B1 Fingerprinting based entity extraction Physics 21 Active
US9342697B1 Scalable security policy architecture for data leakage prevention Electricity 20 Active
US7089270B2 Processing software images for use in generating difference files Emerging Cross-Sectional Technologies 19 Expired
US7516130B2 Matching engine with signature generation Emerging Cross-Sectional Technologies 16 Active
US8266150B1 Scalable document signature search engine Physics 15 Active
US8321434B1 Two tiered architecture of named entity recognition engine Physics 14 Active
US7392260B2 Code alignment of binary files Emerging Cross-Sectional Technologies 14 Expired
US8051487B2 Cascading security architecture Physics 13 Active
US7860853B2 Document matching engine using asymmetric signature generation Physics 13 Active
US8862555B1 Methods and apparatus for generating difference files Physics 12 Active
US8468595B1 Content filtering prior to data encryption Electricity 10 Active
US8498965B1 Methods and apparatus for generating difference files Physics 9 Active
US8490203B1 Fingerprinting based entity extraction Physics 8 Active
US9098513B1 Methods and systems for differencing orderly dependent files Physics 8 Active
US9146704B1 Document fingerprinting for mobile phones Electricity 7 Active
US9203623B1 Apparatus and methods for keyword proximity matching Physics 5 Active
US8566317B1 Apparatus and methods for scalable object clustering Physics 5 Active
US6775376B2 Proxy database for element management system of telephone switching network Electricity 5 Expired
US8782082B1 Methods and apparatus for multiple-keyword matching Physics 4 Active
US8606772B1 Efficient multiple-keyword match technique with large dictionaries Physics 2 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.