Inventor · disambiguated record
Guangzhi Li
Also filed as: LI GUANGZHI
41 granted patents·4 pending applications·472 citations·filing 2001–2025
98Inventor score
Top patents by PatentIndex Score
45 records- 0198US7180852B1Method for selecting a restoration path in a mesh networkAT & T CORP·Filed 2005·Granted Feb 20, 2007·33 cites·12 claims
- 0298US6982951B2Method for selecting a restoration path in a mesh networkAT & T CORP·Filed 2001·Granted Jan 3, 2006·85 cites·11 claims
- 0396US12313574B1Coincidence technique-based x-ray detection device and composition analysis methodUNIV SHANDONG·Filed 2025·Granted May 27, 2025·1 cites·14 claims
- 0496US7859993B1Two-phase fast reroute with optimized traffic engineeringAT & T IP II LP·Filed 2008·Granted Dec 28, 2010·55 cites·20 claims
- 0596US7406032B2Bandwidth management for MPLS fast reroutingAT & T CORP·Filed 2005·Granted Jul 29, 2008·61 cites·1 claims
- 0694US8515280B1Physically-diverse routing in heterogeneous optical networksLI GUANGZHI·Filed 2010·Granted Aug 20, 2013·21 cites·23 claims
- 0790US7830785B2System and method for restoration in a multimedia IP networkAT & T LABS INC·Filed 2008·Granted Nov 9, 2010·15 cites·9 claims
- 0889US8750161B1Metropolitan IP aggregation network design toolMATTHEWS DAVID·Filed 2010·Granted Jun 10, 2014·14 cites·20 claims
- 0989US7450496B1Method for selecting restoration path in a mesh networkDOVERSPIKE ROBERT DUNCAN·Filed 2007·Granted Nov 11, 2008·12 cites·10 claims
- 1088US8260133B2Standby restoration signaling for optical networksLI GUANGZHI·Filed 2009·Granted Sep 4, 2012·11 cites·21 claims
- 1187US8452176B2Reachability matrices spanning multiple domains in an optical networkDOVERSPIKE ROBERT·Filed 2011·Granted May 28, 2013·8 cites·20 claims
- 1287US8150257B1Shared mesh restoration with pre-configured standby lightpathsCHOUDHURY GAGAN L·Filed 2008·Granted Apr 3, 2012·20 cites·12 claims
- 1386US8208371B2Bandwidth management for MPLS fast reroutingLI GUANGZHI·Filed 2008·Granted Jun 26, 2012·12 cites·20 claims
- 1483US11664890B2Service processing method, control device, and storage mediumHUAWEI TECH CO LTD·Filed 2021·Granted May 30, 2023·2 cites·20 claims
- 1582US8467382B1Method and apparatus for providing a control plane across multiple optical network domainsDOVERSPIKE ROBERT·Filed 2005·Granted Jun 18, 2013·13 cites·18 claims
- 1682US7652983B1Method for restoration and normalization in a mesh networkAT & T IP II LP·Filed 2002·Granted Jan 26, 2010·40 cites·20 claims
- 1780US7974183B2Method for restoration and normalization in a mesh networkAT & T IP II LP·Filed 2009·Granted Jul 5, 2011·7 cites·20 claims
- 1878US10601731B2Broadcast services platform and methods for use therewithAT & T IP I LP·Filed 2019·Granted Mar 24, 2020·2 cites·20 claims
- 1978US9264344B2Method and apparatus for providing a route recommendationAT & T IP I LP·Filed 2015·Granted Feb 16, 2016·3 cites·20 claims
- 2077US8374077B2Bandwidth management for MPLS fast reroutingAT & T IP II LP·Filed 2012·Granted Feb 12, 2013·3 cites·20 claims
- 2176US7769296B1Arrangement for reducing multiplexing and demultiplexing cost in ultra long haul (ULH) all-optical networks by minimizing number of required mux/demux groupsAT & T IP II LP·Filed 2005·Granted Aug 3, 2010·7 cites·19 claims
- 2275US10250351B2Efficient network utilization using optically switched superchannelsFUTUREWEI TECHNOLOGIES INC·Filed 2017·Granted Apr 2, 2019·2 cites·20 claims
- 2375US8989018B2Method and apparatus for providing a route recommendationLI GUANGZHI·Filed 2010·Granted Mar 24, 2015·4 cites·17 claims
- 2474US10931567B2System and method for restoration in a multimedia IP networkAT & T IP I LP·Filed 2018·Granted Feb 23, 2021·1 cites·14 claims
- 2574US7688720B2Method for selecting a restoration path in a mesh networkAT & T IP II LP·Filed 2005·Granted Mar 30, 2010·3 cites·8 claims
- 2674US7298700B1Method for unidirectional and bidirectional label switched path setup in a label switched networkAT & T CORP·Filed 2002·Granted Nov 20, 2007·16 cites·6 claims
- 2773US7904571B1Method and apparatus for generating a set of aggregatesAT & T IP II LP·Filed 2006·Granted Mar 8, 2011·5 cites·18 claims
- 2873US7782772B2Method for unidirectional and bidirectional label switched path setup in a label switched networkAT&T IP II LP·Filed 2007·Granted Aug 24, 2010·4 cites·20 claims
- 2971US11301641B2Method and apparatus for generating musicTENCENT TECH SHENZHEN CO LTD·Filed 2019·Granted Apr 12, 2022·2 cites·20 claims
- 3070US8687956B2Standby restoration signaling for optical networksLI GUANGZHI·Filed 2012·Granted Apr 1, 2014·2 cites·10 claims
- 3170US7613135B2System and method for routing packet trafficAT & T IP I LP·Filed 2006·Granted Nov 3, 2009·4 cites·17 claims
- 3266US8665698B2System and method for restoration in a multimedia IP networkLI GUANGZHI·Filed 2010·Granted Mar 4, 2014·1 cites·17 claims
- 3365US10447616B2Broadcast services platform and methods for use therewithAT & T IP I LP·Filed 2015·Granted Oct 15, 2019·1 cites·20 claims
- 3463US8897641B2Reachability matrices spanning multiple domains in an optical networkAT & T IP I LP·Filed 2013·Granted Nov 25, 2014·1 cites·20 claims
- 3560US8824461B2Method and apparatus for providing a control plane across multiple optical network domainsAT & T IP II LP·Filed 2013·Granted Sep 2, 2014·1 cites·18 claims
- 3658US2024398841A1Bladder perfusion pharmaceutical composition, preparation method therefor and application thereofINNOBM PHARMACEUTICALS CO LTD·Filed 2021·Application pending·0 cites
- 3757US9979634B2System and method for restoration in a multimedia IP networkAT & T IP I LP·Filed 2016·Granted May 22, 2018·0 cites·19 claims
- 3857US9503315B2System and method for restoration in a multimedia IP networkAT & T IP I LP·Filed 2014·Granted Nov 22, 2016·0 cites·17 claims
- 3954US8780697B2Bandwidth management for MPLS fast reroutingAT & T IP II LP·Filed 2013·Granted Jul 15, 2014·0 cites·20 claims
- 4047US9941992B2Method and apparatus for efficient network utilization using superchannelsFUTUREWEI TECHNOLOGIES INC·Filed 2016·Granted Apr 10, 2018·0 cites·20 claims
- 4146US2009252033A1System and method of distributing media contentAT & T KNOWLEDGE VENTURES LP·Filed 2008·Application pending·0 cites
- 4245US2013238582A1Method for operating file system and communication deviceHUAWEI TECH CO LTD·Filed 2013·Application pending·0 cites
- 4344US11825248B2Spectrum allocation method and apparatusHUAWEI TECH CO LTD·Filed 2021·Granted Nov 21, 2023·0 cites·19 claims
- 4442US9709506B2Substrate damage inspection apparatus, production system and inspection methodBOE TECHNOLOGY GROUP CO LTD·Filed 2015·Granted Jul 18, 2017·0 cites·16 claims
- 4542US2004107382A1Method for network layer restoration using spare interfaces connected to a reconfigurable transport networkATT CORP·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →