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DONGYING HAOCHEN PETROLEUM TECH DEVELOPMENT CO LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    147,680
About

DONGYING HAOCHEN PETROLEUM TECH DEVELOPMENT CO LTD has a total of 12 patent applications. It filed its patents most often in China. Its main competitors in its focus markets chemical engineering, civil engineering and macromolecular chemistry and polymers are NOVINDA CORP, CHEMICAL AND METAL TECH LLC and 2661881 ONTARIO LTD.

Patent filings in countries

World map showing DONGYING HAOCHEN PETROLEUM TECH DEVELOPMENT CO LTDs patent filings in countries
# Country Total Patents
#1 China 12

Top inventors

# Name Total Patents
#1 Cheng Yuzhen 12
#2 Kang Lanlan 2
#3 Li Lin 2
#4 Zhao Yuehan 2

Latest patents

Publication Filing date Title
CN112275245A Chemical industry is with cooling condensation reation kettle
CN112275246A Thermal cycle chemical industry reation kettle
CN112221171A Paddle dryer for producing oil field auxiliary agent
CN112246065A Cyclone dust collector for oil field auxiliary agent production
CN112240350A Beam bearing seat for beam-pumping unit
CN112196878A Beam-pumping unit connecting rod crossbeam round pin axle anticreep device
CN112093124A Automatic packaging equipment for aluminum alloy wheel hub
CN112254119A Pretreatment equipment for boiler water inlet energy saving and working method thereof
CN112282704A Balanced automatic adjustment formula hydraulic pumping unit
CN111777997A Preparation method of drilling fluid inhibiting anti-sloughing agent
CN111921326A Smoke dust processor for petroleum processing and working method thereof
CN111841476A Chemical production is with convenient clear reation kettle