Li; YouYi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Li; YouYi.The latest application filed is for "differential protection of a transmission line".

Company Profile

13.23.27

Li; YouYi - Vasteras SE
Li; Youyi - Beijing N/A CN
Li; Youyi - Wuhan N/A CN
Li; Youyi - Wuhan City CN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Time domain distance protection based on polarity comparison for power transmission lines Grant 11,435,411 - Li , et al. September 6, 2	2022-09-06
Differential Protection of a Transmission Line App 20220091173 - Wang; Jianping ; et al.	2022-03-24
High sensitive phase selection method Grant 11,280,824 - Li , et al. March 22, 2	2022-03-22
Determining Of A Power Line Fault App 20220065913 - LI; Youyi ; et al.	2022-03-03
Travelling wave pilot protection of a transmission line based on time synchronization Grant 11,112,445 - Li , et al. September 7, 2	2021-09-07
Method and control system for fault direction detection Grant 11,050,239 - Liu , et al. June 29, 2	2021-06-29
Method and control system for faulted phase detection Grant 11,022,655 - Liu , et al. June 1, 2	2021-06-01
New Zero Sequence Current Based Line Differential Protection Solution App 20200335967 - Li; YouYi ; et al.	2020-10-22
Time Domain Distance Protection Based on Polarity Comparison for Power Transmission Lines App 20200319262 - Li; YouYi ; et al.	2020-10-08
High Sensitive Phase Selection Method App 20200319241 - LI; YouYi ; et al.	2020-10-08
Travelling wave protection of a transmission line based on high-pass filtering Grant 10,734,803 - Li , et al.	2020-08-04
Method and apparatus for detection of power system disturbance within a digital substation Grant 10,444,272 - Liu , et al. Oc	2019-10-15
Method For Detecting Fault In Power Transmission Line And Protection System Using The Same App 20190296543 - Liu; Kai ; et al.	2019-09-26
Voltage based method for fault identification in a transmission line apparatus thereof Grant 10,416,221 - Yang , et al. Sept	2019-09-17
Method And Control System For Fault Direction Detection App 20190271730 - Liu; Kai ; et al.	2019-09-05
Method for identifying the fault by current differential protection and device thereof Grant 10,393,810 - Li , et al. A	2019-08-27
Fault detection of a transmission line Grant 10,295,586 - Li , et al.	2019-05-21
Method And Control System For Faulted Phase Detection App 20190072603 - Liu; Kai ; et al.	2019-03-07
Fault Detection Of A Transmission Line App 20180364293 - Li; YouYi ; et al.	2018-12-20
Method and apparatus for detecting fault in a mixed configuration power transmission line Grant 10,120,012 - Burek , et al. November 6, 2	2018-11-06
Travelling wave protection of a transmission line Grant 10,074,969 - Liu , et al. September 11, 2	2018-09-11
Travelling Wave Protection Of A Transmission Line Based On High-Pass Filtering App 20180145505 - LI; YouYi ; et al.	2018-05-24
Travelling Wave Pilot Protection Of A Transmission Line Based On Time Synchronization App 20180143238 - Li; YouYi ; et al.	2018-05-24
Method And Apparatus For Detecting Fault In A Mixed Configuration Power Transmission Line App 20180106849 - BUREK; Arkadiusz ; et al.	2018-04-19
Travelling Wave Protection Of A Transmission Line App 20180069391 - LIU; Kai ; et al.	2018-03-08
Method for detecting fault and current differential protection system thereof Grant 9,899,830 - Li , et al. February 20, 2	2018-02-20
Method And Apparatus For Detection Of Power System Disturbance Within A Digital Substation App 20180024183 - Liu; Kai ; et al.	2018-01-25
A Method For Detecting Fault And Current Differential Protection System Thereof App 20160006240 - LI; YOUYI ; et al.	2016-01-07
Method For Identifying The Fault By Current Differential Protection And Device Thereof App 20150160297 - Li; Youyi ; et al.	2015-06-11
Method and apparatus for detecting communication channel delay asymmetry Grant 9,042,412 - Su , et al. May 26, 2	2015-05-26
Integrated device suspended at high voltage potential for power energy metering and protection of distribution network Grant 9,018,938 - Hou , et al. April 28, 2	2015-04-28
Synchronization method for current differential protection Grant 8,791,730 - Li , et al. July 29, 2	2014-07-29
Voltage Based Method For Fault Identification In A Transmission Line And Apparatus Thereof App 20130317768 - Yang; Ying ; et al.	2013-11-28
Method for detecting network asymmetrical status and asymmetrical communication channels for power system Grant 8,526,333 - Li , et al. September 3, 2	2013-09-03
Synchronization Method For Current Differential Protection App 20130181755 - Li; Youyi ; et al.	2013-07-18
Integrated Device Suspended At High Voltage Potential For Power Energy Metering And Protection Of Distribution Network App 20130057255 - Hou; Tiexin ; et al.	2013-03-07
Method and Apparatus for Ground Distance Protection App 20120206149 - Su; Bin ; et al.	2012-08-16
Method and Apparatus for Detecting Communication Channel Delay Asymmetry App 20120147941 - Su; Bin ; et al.	2012-06-14
Method for Detecting Network Asymmetrical Status and Asymmetrical Communication Channels for Power System App 20110286361 - Li; Youyi ; et al.	2011-11-24

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