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Shijiazhuang sanhuan valve co ltd

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    128,633
  • Filing trend
    ⇩ 66.0%
About

Shijiazhuang sanhuan valve co ltd has a total of 14 patent applications. It decreased the IP activity by 66.0%. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements, materials and metallurgy and surface technology and coating are BROEN AS, KEMP WILLARD E and YANCHENG JINGSHENG PETROCHEMICAL MACHINERY CO LTD.

Patent filings in countries

World map showing Shijiazhuang sanhuan valve co ltds patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing Shijiazhuang sanhuan valve co ltds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wei Mingyi 13
#2 Jia Zhanliang 11
#3 Zhang Yanteng 9
#4 Li Junqiang 6
#5 Zhang Fugang 5
#6 Li Yinzhu 3
#7 Wu Ping 2
#8 Fugang Zhang 1
#9 Weiwei Pang 1
#10 Jieying Zhou 1

Latest patents

Publication Filing date Title
CN110725960A Rotary seal valve
CN109519553A Rotary seal valve
CN109114232A Two-way isolating valve,
CN107504205A The sealing device of piston valve and its application
CN107559444A Improved piston valve and its application
CN107701791A The denoising device of piston valve and its application
CN107035880A Improved butterfly valve
CN107013688A The hollow butterfly valve plate of biconvex
CN107035872A The bar-link drive of improved butterfly valve plate
CN105369122A Distributor chute lining plate of iron smelting blast furnace and preparation method of distributor chute lining plate
CN105463475A Corrosion resistance method of bimetal corrugated expansion joint
CN104328345A Double-metal material knockout wear-resistant lining plate as well as chemical composition and processing method thereof
CN104006257A Chloride ion corrosion-resistant expansion joint and manufacturing technique for corrugated pipe of expansion joint
CN102489367A Sand regenerating pulverizer