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LIAONING XINHUA INSTR CO LTD

Overview
  • Total Patents
    19
  • GoodIP Patent Rank
    88,646
About

LIAONING XINHUA INSTR CO LTD has a total of 19 patent applications. Its first patent ever was published in 2016. It filed its patents most often in China. Its main competitors in its focus markets civil engineering and engines, pumps and turbines are TIGRE TIERRA, TOP WELL PETROLEUM TECH COMPANY LTD and DES ENHANCED RECOVERY LTD.

Patent filings in countries

World map showing LIAONING XINHUA INSTR CO LTDs patent filings in countries
# Country Total Patents
#1 China 19

Patent filings per year

Chart showing LIAONING XINHUA INSTR CO LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Liang Chuang 19
#2 Liang Weicheng 19
#3 Liu Bao 1

Latest patents

Publication Filing date Title
CN112228017A External debugging constant pressure matching production kit
CN112228000A Washable well step-by-step unpacking sleeve protection packer
CN111963122A Backflow-preventing injection allocation device
CN111677474A Novel blowout prevention anchoring integrated tool
CN111677481A High-pressure oil drainage tool
CN111219165A Repeated triggering type blowout-preventing reversing tool under pump
CN111237184A Oil drain device on reciprocating pump
CN111155942A Blowout prevention connecting-tripping device
CN111188595A Screw pump driving device
CN110863786A Continuous sand washing tool
CN110761732A Novel blowout prevention connecting-tripping device
CN110700791A Environment-friendly oil drainage tool for oil pipe
CN110439501A Small deblocking power packer
CN110439506A A kind of oil releasing device for oil pipe
CN110145279A Bleeder on a kind of reciprocating pump
CN106121581A Pony packer
CN105889062A Screw pump transmission device
CN107355192A A kind of screw pump anti-blowout anchoring tool
CN105971558A Oil drain device