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KEQING YANG

Overview
  • Total Patents
    12
About

KEQING YANG has a total of 12 patent applications. Its first patent ever was published in 2006. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are GUILIN GUIKAI BIOLOG SCIENCE & TECHNOLOGY CO LTD, NINGBO SANLI NEW MATERIALS CO LTD and HUZHOU KONCH PHARMACEUTICAL CO LTD.

Patent filings in countries

World map showing KEQING YANGs patent filings in countries
# Country Total Patents
#1 China 12

Patent filings per year

Chart showing KEQING YANGs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Keqing Yang 12

Latest patents

Publication Filing date Title
CN101037871A Sterilized water tank leak-proof method and sterilized water tank
CN101066786A Water treating system
CN101073747A Water treatment system for recovering and reutilizing waste water
CN101025236A Waste-water return-flow system flow compensation method and flow compensation valve
CN101105040A Protecting system for pressure-limiting valve
CN101021281A Internal cavity pressure limiting valve
CN1995560A Aseptic water tank with safe liquid level meter
CN1987110A Leak-proof method and system for fluid pipeline pump
CN1974422A Household water treating method and system with antioxidant reverse osmosis film
CN1945772A Pressure switch with anti-leakage self protective function
CN1959167A Safety structure of l pressure-reducing valve
CN101109467A Pressure-limiting stabilizing valve