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HUNAN ZHENHUI PIPE IND CO LTD

Overview
  • Total Patents
    16
  • GoodIP Patent Rank
    105,567
  • Filing trend
    ⇩ 20.0%
About

HUNAN ZHENHUI PIPE IND CO LTD has a total of 16 patent applications. It decreased the IP activity by 20.0%. Its first patent ever was published in 2014. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United Kingdom. Its main competitors in its focus markets machines, mechanical elements and machine tools are POORUNNARAI CO LTD, ROCK ISLAND OIL & REFINING CO and PROCHASKA CRW CHEMIEROHRWERK.

Patent filings in countries

World map showing HUNAN ZHENHUI PIPE IND CO LTDs patent filings in countries

Patent filings per year

Chart showing HUNAN ZHENHUI PIPE IND CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xiao Hefei 15
#2 Yin Xiwei 14
#3 Zhang Xin'Ai 3
#4 Luo Anming 3
#5 Dai Jun 2
#6 Hefei Xiao 1
#7 Zhang Tanwei 1
#8 Xiwei Yin 1

Latest patents

Publication Filing date Title
CN111237552A End face and port double-enhancement double-sealing device of metal plastic composite pipe and manufacturing method thereof
CN110274099A End is equipped with the composite metal-plastic pipe and its manufacturing method of enhancing sealing mechanism
CN110285271A A kind of composite metal-plastic pipe port enhancing face seals and preparation method thereof
CN110005885A A kind of enhanced steel pipe of bellmouth and preparation method thereof
CN109500068A A kind of composite metal-plastic pipe plastics stripping off device
CN109482589A A kind of metal tube dust-extraction unit
CN109210286A Outer plastic-coated lining plastic metal composite pipe and its manufacturing method
CN109237146A Embedded port enhancing ring composite metal-plastic pipe and its manufacturing method
CN109049744A Bench
CN108908947A The equipment of cast iron pipe liner PE pipe
CN107654748A A kind of port enhancing ring inner lining plastic tube spigot-and-socket metal tube and preparation method
CN106594406A Lining plastic pipe cast iron pipe and manufacturing method thereof
CN105673956A Environmentally-friendly ceramic coating nodular cast iron pipe and manufacturing method thereof