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NINGBO WANAN CO LTD

Overview
  • Total Patents
    19
  • GoodIP Patent Rank
    134,137
About

NINGBO WANAN CO LTD has a total of 19 patent applications. Its first patent ever was published in 2006. It filed its patents most often in China and United States. Its main competitors in its focus markets mechanical elements, thermal processes and chemical engineering are EMCARA GAS DEV INC, GUANGDONG QICAI VALVES TECH CO LTD and CARL ESSER.

Patent filings in countries

World map showing NINGBO WANAN CO LTDs patent filings in countries
# Country Total Patents
#1 China 18
#2 United States 1

Patent filings per year

Chart showing NINGBO WANAN CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Feng 18
#2 Wei Yunnan 4
#3 Zhang Qinchang 3
#4 Fan Jinghui 2
#5 Wang Yanhua 2
#6 Qinchang Zhang 1

Latest patents

Publication Filing date Title
CN111623154A Gas pressure regulator
CN111594684A Push-free direct insertion type gas quick coupling
CN110056703A Gas pressure regulator, governor pressure conversion device
CN106641393A Electronic control gas valve and using method thereof
CN106122505A Double gas share plug valve
CN106567958A Electronic-type time control extinguishing protection combination valve
CN106039847A Gas filter
CN105351556A Double-gas sharing plug valve
CN105003688A High-position double-pass time control gas valve
CN104457892A Gas cylinder gas amount detection and display device and control method thereof
CN104089059A Tilt control valve
CN104048295A Double-gas elbow bend spraying head
CN104075053A Integral ferrule joint
CN103423480A Linear-flow-rate cock gas valve
CN103438223A Thermosensitive combustible gas control valve
CN102705622A Combined air supply pipe
CN102691884A Gas bottle safety joint
CN101718344A Electronic gas timing control device
US2008156378A1 Manual gas valve with natural/LP gas conversion capability