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ZHEJIANG CHINA VALVE CO LTD

Overview
  • Total Patents
    13
About

ZHEJIANG CHINA VALVE CO LTD has a total of 13 patent applications. Its first patent ever was published in 2005. It filed its patents most often in EPO (European Patent Office), WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets mechanical elements are XU CHANGXIANG, DAUME ACHIM and BOEHMER GMBH MASCHF W.

Patent filings in countries

World map showing ZHEJIANG CHINA VALVE CO LTDs patent filings in countries

Patent filings per year

Chart showing ZHEJIANG CHINA VALVE CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements

Focus technologies

Top inventors

# Name Total Patents
#1 Xu Changxiang 12
#2 Chen Zhanji 2
#3 Yang Mao 2
#4 Zhangxiang Xu 1

Latest patents

Publication Filing date Title
WO2013131490A1 Rectangular ring and o-ring self-sealing structures
EP2375110A1 A sealing structure with groove and gasket
EP2375109A1 Sealing abutting configuration with microcosmic toothed rings
EP2343468A1 Double annular rod shoulder seal and independent double valve rod seal
EP2365236A1 Ball valve seat which is constructed by equilateral triangle sectioning method and ball valve including it
EP2101096A1 Extrude pipe connecting part with integrated single and double clamping ring
CN1920363A Sealing sleeve with a triangle section