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SHANGHAI WTL WELDING EQUIPMENT MANUFACTURE CO LTD

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    188,185
About

SHANGHAI WTL WELDING EQUIPMENT MANUFACTURE CO LTD has a total of 15 patent applications. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, machine tools and thermal processes are PROIZV OB MOSSPETSPROMPROEKT, INST TECH CIEPLNEJ and MITSUBISHI ALUMINIUM.

Patent filings in countries

World map showing SHANGHAI WTL WELDING EQUIPMENT MANUFACTURE CO LTDs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

Chart showing SHANGHAI WTL WELDING EQUIPMENT MANUFACTURE CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 You Zhichun 9
#2 Zhang Hui 6
#3 Zhichun You 6
#4 Tian Bing 5
#5 Wang Cheng 2
#6 Hui Zhang 2
#7 Sun Huibo 1
#8 Wu Hao 1
#9 Pan Libing 1
#10 Wang Pin 1

Latest patents

Publication Filing date Title
CN105312730A Remote-control unit used for welding machine
CN104076186A Automatic input voltage judging circuit based on waveform sampling
CN104078977A Wave-shape sampling based real-time follow-up harmonic wave compensation circuit
CN104057177A Control circuit for short circuiting transfer welding
CN104057191A Dustproof cover for rectifying bridge of inverter welding machine
CN104057181A Open-phase protection circuit for inverter welding machine
CN102570835A Phase shift full bridge converter which reduces zero load voltage of plasma cutting machine and method thereof
CN102594174A Welding power source for full voltage range
CN102554405A Device and method for eliminating argon-arc welding contact arc striking adhesion
CN102218579A Environment-friendly high-frequency arc ignition generator
CN102130631A Control method for tracking maximum power point of photovoltaic grid-connected generation
CN102179597A Arc stabilizer of AC argon arc welding machine
CN102130622A High-efficiency photovoltaic inverter
CN102158109A Photovoltaic synchronization inverter system
CN101566844A Multi-head integrated welder management system realized by centralized control