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HAN TIEFU

Overview
  • Total Patents
    21
About

HAN TIEFU has a total of 21 patent applications. Its first patent ever was published in 1999. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets engines, pumps and turbines, machines and chemical engineering are DEMS ENG, WIEGERS WILFRIED and VOLSTATIC COATINGS LTD.

Patent filings in countries

World map showing HAN TIEFUs patent filings in countries

Patent filings per year

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

Focus technologies

Top inventors

# Name Total Patents
#1 Han Tiefu 21
#2 Han Dukun 4

Latest patents

Publication Filing date Title
CN103423215A Multiplex compound ejector
CN103423214A Compound series-level jet pump
CN102678637A Compound ejector
CN102654145A Jet pump
CN102705272A Jet pump
CN102954047A Injection mixer
CN102678635A Primary-secondary ejector
CN102678634A Dual ring ejector
CN102039228A Rotary annular-seam spray nozzle and spraying device thereof
WO2011044732A1 Spin annular slit spray nozzle and spray apparatus thereof
WO2010006560A1 Spraying device
WO2010006542A1 Spray device
CN101306234A Dispensing devices with pre-disposed heat-sensitive mechanism and its use method
CN103736232A Spraying device with front heat-sensitive mechanism
CN1252315A Fire extinguishing fog flow conveying method and corresponding fire extinguisher