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LIEBERT CORP

Overview
  • Total Patents
    582
  • GoodIP Patent Rank
    9,645
  • Filing trend
    ⇩ 43.0%
About

LIEBERT CORP has a total of 582 patent applications. It decreased the IP activity by 43.0%. Its first patent ever was published in 1968. It filed its patents most often in China, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets electrical machinery and energy, thermal processes and audio-visual technology are VERTIV CORP, TROX UK LTD and HACHIYO ENGINEERING CO LTD.

Patent filings per year

Chart showing LIEBERT CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Martin James K 42
#2 Dolcich Benedict J 39
#3 Bush Terry D 39
#4 Powell Jeffrey M 33
#5 Sillato Stephen 30
#6 Lin Zhiyong 28
#7 Schutte Daniel J 27
#8 Schrader Timothy J 26
#9 Judge John F 22
#10 Heber Brian P 21

Latest patents

Publication Filing date Title
CN110635555A Power supply system and power supply switching method
CN110492877A A kind of thyristor driving circuit
CN110401348A A kind of two-way resonance DC-DC transfer circuit and uninterruptible power supply
US2018241246A1 Method of mitigating effects of AC input voltage surge in a transformer-less rectifier uninterruptible power supply system
US2018196091A1 System and method of identifying path of residual current flow through an intelligent power strip
CN109962607A A kind of Current limited Control adjusting method and device
CN109951058A A kind of method and device for the switching loss reducing switching tube
WO2018067967A1 Adaptive pid control for chilled water crac units
CN107869865A The method and refrigeration system being controlled during pump operation pattern to superheat level
US2017261244A1 Fin and tube-evaporator with mini-slab circuit extenders
US2017244277A1 Method to reduce inrush currents in a transformer-less rectifier uninterruptible power supply system
US2017234561A1 Systems and methods for detecting degradation of a component in an air conditioning system
US2017227259A1 Hybrid air handler cooling unit with bi-modal heat exchanger
US2017276417A1 System and method to maintain evaporator superheat during pumped refrigerant economizer operation
CN107846137A A kind of current-limiting method and equipment of semiconductor switch component
CN107819394A A kind of switch controlled method, apparatus and inverter
WO2017127130A1 System and method for modular data center
US2016363359A1 Cooling system with direct expansion and pumped refrigerant economization cooling
US2016336796A1 System and method for power sharing in a multiple UPS system
US2016359362A1 Fast Restart Of Flywheel In Uninterruptible Power Supply System Having Flywheel System/Battery Combination