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LIU SHOUJIN

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    126,856
About

LIU SHOUJIN has a total of 14 patent applications. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets civil engineering are NAKAKAWANISHI TADASHI, EMUZU KK and TONE KOJI KK.

Patent filings in countries

World map showing LIU SHOUJINs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing LIU SHOUJINs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

Top inventors

# Name Total Patents
#1 Liu Shoujin 14
#2 Li Shurui 9
#3 Zhang Xicai 8
#4 Zhao Shifan 8
#5 Zhao Yue 6
#6 Yang Yanjun 6
#7 Liu Shuai 6
#8 Zhang Guifang 5
#9 Xia Riguang 5
#10 Du Xiao 5

Latest patents

Publication Filing date Title
CN112252308A Concrete cast-in-place pile with diameter-expanding screw tooth pile section, drill bit device for pile forming and pile forming method
CN112095590A Spiral cone soil-squeezing pressure-filling pile with screw teeth, drill bit device for pile forming and pile forming method
CN111197460A Pneumatic impact spiral drill bit
CN111005366A Spiral soil-squeezing composite-squeezing concrete cast-in-place pile, drill bit for pile forming and construction method
CN110410013A A kind of spiral soil compaction drill bit device and its method for constructing foundation pile that torsion is closed the door
CN110219597A A kind of spiral soil compaction guncreting pile drilling rig and spiral soil compaction guncreting pile method for constructing foundation pile
CN109723393A A kind of spiral is at hole drill tool and bore forming method
CN109183784A Cast-in-situ concrete thin-wall pipe pile constructing device and bore forming method
CN108266131A Rotate soil compaction bottom expanding drill and method for constructing foundation pile
CN106499343A Spiral cylinder soil compaction drill bit and its bore forming method
CN106246099A Spiral soil compaction down-the-hole embedding rock device and pile making method
CN105464153A Single-pile vertical compressive static load detection device and detection method
CN104295234A Long spiral extrusion bottom ramming pile machine and pile foundation pouring pile forming method
CN103556628A Spiral conical soil compaction pile construction method