Inventor · Summit, NJ, US

Nicholas Duffield

55Patents
16h-index
48Co-inventors
80Inventor score

Filing activity: Nov 18, 1997 → Jul 31, 2016

Most-cited inventions

PatentTitleAreaCited byStatus
US8228818B2 Systems, methods, and devices for monitoring networks Electricity 262 Active
US6452933B1 Fair queuing system with adaptive bandwidth redistribution Electricity 171 Expired
US9258217B2 Systems and methods for rule-based anomaly detection on IP network flow Electricity 134 Active
US6873600B1 Consistent sampling for network traffic measurement Electricity 126 Expired
US6310857A Method and apparatus for smoothing and multiplexing video data flows Electricity 82 Expired
US6912232B1 Virtual private network Electricity 70 Expired
US7852785B2 Sampling and analyzing packets in a network Electricity 35 Active
US8311956B2 Scalable traffic classifier and classifier training system Physics 33 Active
US8001601B2 Method and apparatus for large-scale automated distributed denial of service attack detection Electricity 32 Active
US9680877B2 Systems and methods for rule-based anomaly detection on IP network flow Electricity 28 Active
US8031599B2 Statistical, signature-based approach to IP traffic classification Electricity 26 Active
US7924739B2 Method and apparatus for one-way passive loss measurements using sampled flow statistics Emerging Cross-Sectional Technologies 22 Active
US7536455B2 Optimal combination of sampled measurements Emerging Cross-Sectional Technologies 20 Active
US7293086B1 Traffic matrix estimation method and apparatus Electricity 19 Expired
US7953020B2 Method for implementing and reporting one-way network measurements Emerging Cross-Sectional Technologies 18 Active
US7508769B1 Consistent sampling for network traffic measurement Electricity 16 Active
US7660248B1 Statistical, signature-based approach to IP traffic classification Electricity 16 Expired
US7424489B1 Methods and apparatus for space efficient adaptive detection of multidimensional hierarchical heavy hitters Electricity 16 Active
US7080136B2 Method and apparatus for size-dependent sampling for managing a data network Electricity 15 Expired
US8233402B2 Multicast-based inference of temporal loss characteristics in packet data networks Electricity 12 Active
US7587761B2 Adaptive defense against various network attacks Electricity 11 Active
US8028055B2 Optimal combination of sampled measurements Emerging Cross-Sectional Technologies 11 Active
US9349102B2 Scalable traffic classifier and classifier training system Physics 11 Active
US7197048B1 Virtual private network Electricity 10 Expired
US8477772B2 System and method for determination of routing information in a network Electricity 10 Active

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