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BEIJING SIFANG AUTOMATION CO

Overview
  • Total Patents
    475
  • GoodIP Patent Rank
    5,258
  • Filing trend
    ⇩ 2.0%
About

BEIJING SIFANG AUTOMATION CO has a total of 475 patent applications. It decreased the IP activity by 2.0%. Its first patent ever was published in 2003. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United Kingdom. Its main competitors in its focus markets environmental technology, electrical machinery and energy and measurement are XUJI GROUP CO LTD, CHINA ELECTRIC POWER RES INST and CHINA SOUTH POWER GRID ELECTRIC POWER RES INST CO LTD.

Patent filings in countries

World map showing BEIJING SIFANG AUTOMATION COs patent filings in countries

Patent filings per year

Chart showing BEIJING SIFANG AUTOMATION COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xu Gang 43
#2 Liu Shu 35
#3 Huang Shaofeng 32
#4 Chen Qiurong 29
#5 Zhang Yuepin 29
#6 Liu Zhichao 29
#7 Qin Hongxia 28
#8 Zhang Tao 27
#9 Xu Wanfang 26
#10 Liu Gang 24

Latest patents

Publication Filing date Title
CN112290540A AC low voltage ride through and grid-connected to off-grid unified control method
CN111934354A Control method and system for converting modular multilevel converter from off-grid to grid-connected
CN111812503A Testing method and testing system suitable for flexible direct current converter valve
CN111769526A Valve group fault exit control method for extra-high voltage multi-terminal hybrid direct-current transmission system
CN111740379A Method for automatically adjusting zero sequence protection two-segment and three-segment time constant values on line
CN111668871A AC fault ride-through control method under new energy access flexible DC distribution network system
CN111367217A Monitoring method for improving inter-station communication safety of stability control system
CN111402076A Resident load demand response optimization control method
CN111146859A Seamless switching power supply based on back-to-back voltage source converter and seamless switching method
CN111082425A Low-loss fast switching power supply and switching method thereof
CN111126866A Comprehensive energy efficiency evaluation management system and method for alternating current-direct current renewable energy system
CN111142435A Relay protection open circuit and open control method thereof
CN111079242A Distribution network physical model connectivity error checking method and device
CN110879311A Method for calculating power of power grid
CN110707759A Safety and stability control method for wind power high-proportion power grid
CN110879214A SF6 electrical equipment running state detection device based on TDLAS
CN110688548A Historical inversion method and system for secondary circuit of intelligent substation
CN110783912A Alternating current and direct current hybrid power distribution system and method through direct current collection
CN110795024A Protection equipment universal man-machine interaction system and method based on XML
CN110783890A Protection method free from frequency influence in unit startup and shutdown process