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SHIJIAZHUANG RAILWAY INST

Overview
  • Total Patents
    20
About

SHIJIAZHUANG RAILWAY INST has a total of 20 patent applications. Its first patent ever was published in 2004. It filed its patents most often in China. Its main competitors in its focus markets environmental technology are VSESOYUZNYJ TEPLOTEKHNICHESKIJ, VINNITSKY Z RADIOTEKH and SHE BOJIN.

Patent filings in countries

World map showing SHIJIAZHUANG RAILWAY INSTs patent filings in countries
# Country Total Patents
#1 China 20

Patent filings per year

Chart showing SHIJIAZHUANG RAILWAY INSTs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Guanglei Zhang 4
#2 Changling Xu 2
#3 Hua Fu 2
#4 Cha Qin 2
#5 Fengjuan Xiao 2
#6 Yanliang Du 2
#7 Xuguang Yu 2
#8 Wei Wang 2
#9 Jianmin Zhang 2
#10 Zurun Yue 2

Latest patents

Publication Filing date Title
CN101718609A Water-pressure resisting performance test device and method thereof of shield tail seal grease of shield machine
CN101665235A Method for preparing n-type doped zinc oxide nanometer powder
CN101643200A Preparation method of antimony-doped tin oxide nano-powder
CN101586322A Ballastless track road-bed pouring device with capability of step ascending-and-descending and step ascending-and-descending method
CN101505301A Authentication method by broadcast signature and ciphering
CN101440704A Ground-dipping ore bed continuous high-energy gas fracturing seepage increasing method and specific high-energy gas generator
CN101387500A Optical fiber grating temperature self-compensating strain transducer based on thermal stress mechanism
CN101382420A Optical fiber grating self-compensating strain transducer produced by on-line molding process
CN101354334A System for measuring in-situ small-sized permeability coefficient based on transient pressure pulse method
CN101339114A Ceramic abrasive machining performance test method and its equipment
CN101302998A Multiple-wind direction acceleration wind power generation device
CN101280174A Powdery magnetic field sealing medium for high temperature environment
CN101279108A Method for preparing titanium-base/silicon-substituted hydroxyapatite biological coating
CN101279105A Process for synthesizing silicon-substituted hydroxyapatite artificial bone bionic ceramic
CN101059491A Indoor quick loaded concretion experiment apparatus and its method
CN101058207A Maize stalk and/or wheat stalk composite board and its manufacturing method
CN101034607A A kind of method that improves the sintered neodymium iron boron material magnetic property
CN1928381A Magnetic rheopectic solution fan clutch
CN1927509A Adulteration method of ceramic nano powder in easy-to-oxidize micro-powder
CN1570185A Shape memory alloy check nut and manufacturing technique