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LIFANG SU

Overview
  • Total Patents
    12
About

LIFANG SU has a total of 12 patent applications. Its first patent ever was published in 2005. It filed its patents most often in China. Its main competitors in its focus markets electrical machinery and energy are JANUSZKIEWICZ EDWARD, SP K BYURO VYCHISLITEL TEKHN and KEYSWITCH VARLEY LTD.

Patent filings in countries

World map showing LIFANG SUs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing LIFANG SUs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

# Technology
#1 Electric switches

Top inventors

# Name Total Patents
#1 Lifang Su 12
#2 Haiwen Yuan 3

Latest patents

Publication Filing date Title
CN101221217A SF6 gas density relay checking instrument and checking process
CN101221109A Method for automatically testing and recording rated value of SF6 gas density relay
CN101221055A Method for automatic testing linear pointer instrument and recording treatment
CN101206169A Tester for SF6 gas density relay
CN101206168A Method for checking SF6 gas density relay
CN101202177A Bourdon tube modified pointer type SF6 gas density relay
CN101202178A Determination method for locating piece position in pointer type SF6 gas density relay
CN101192484A Vibration-resisting type pointer type SF6 gas density relay
CN101038829A Heightening operation arm anti-vibration pointer type SF6 gas density relay
CN101038828A Operating arm anti-vibration pointer type SF6 gas density relay
CN1996529A Vibration-resisting pointer SF6 gas density relay
CN1971795A Shakeproof type sulfur hexafluoride gas density relay