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HAN WENQIANG

Overview
  • Total Patents
    16
  • GoodIP Patent Rank
    107,280
About

HAN WENQIANG has a total of 16 patent applications. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets machines, mechanical elements and packaging and shipping are ZHONG XIHUAN, SHANXI GAOHANG HYDRAULIC INC and Deqing sanming crucible co ltd.

Patent filings in countries

World map showing HAN WENQIANGs patent filings in countries
# Country Total Patents
#1 China 16

Patent filings per year

Chart showing HAN WENQIANGs patent filings per year from 1900 to 2020

Focus technologies

Top inventors

# Name Total Patents
#1 Han Wenqiang 16
#2 Li Xiaoqiao 4

Latest patents

Publication Filing date Title
CN105864476A Fire-resisting damper for flue
CN105909846A High-temperature closing control device for flue fireproof valve
CN104786357A Prefabricated exhaust air duct die
CN104786353A Prefabricated exhaust duct mould
CN104786352A Prefabricated exhaust duct mould
CN104786355A Prefabricated exhaust duct mould
CN104786356A Prefabricated exhaust air duct die
CN104790637A Exhaust pipeline
CN104786354A Prefabricated exhaust duct mould
CN104609295A Sling for pipeline hoisting and using method thereof
CN104191503A Concrete vacuum water absorption device
CN104191504A Quick dehydration molding device for concrete prefabricated member
CN104088441A Retention prevention exhaust ventilation pipeline for building
CN103925401A Flue fire damper
CN103878871A Reserved pipe hole prefabricating cutter
CN103817793A Forming mold of air exhaust pipeline