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Guizhou gaofeng petroleum machinery co ltd

Overview
  • Total Patents
    106
  • GoodIP Patent Rank
    17,267
  • Filing trend
    ⇧ 61.0%
About

Guizhou gaofeng petroleum machinery co ltd has a total of 106 patent applications. It increased the IP activity by 61.0%. Its first patent ever was published in 2007. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, machine tools and materials and metallurgy are SMF INT, SPEX SERVICES LTD and JIANGSU RUDONG LIANFENG PETROLEUM MACHINERY CO LTD.

Patent filings in countries

World map showing Guizhou gaofeng petroleum machinery co ltds patent filings in countries
# Country Total Patents
#1 China 106

Patent filings per year

Chart showing Guizhou gaofeng petroleum machinery co ltds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zheng Boqiang 36
#2 Huang Baoqian 31
#3 Zheng Tingbi 30
#4 Bu Shengjun 29
#5 Wang Wen 28
#6 Wan Wencai 24
#7 Zhang Tengfei 22
#8 Wang Ling 22
#9 Cao Liangbo 22
#10 Jin Feng 22

Latest patents

Publication Filing date Title
CN111322434A Bypass type spherical float valve
CN111335847A High-efficient wire brush scraper
CN111322424A Bidirectional cylindrical spring plug valve
CN110863793A Double-slip hydraulic anchoring packer for window sidetracking
CN110886586A Method for improving cutting efficiency of grinding shoe and fracture centering grinding and milling shoe used in method
CN110863788A Hydraulic bendable pen point device
CN110863778A Anti-falling type reaming device
CN111021966A Settlement compensation method and settlement compensator for offshore drilling
CN110863784A Straight edge stabilizer with replaceable sleeve
CN110863789A Hydraulic shaping device and shaping method
CN110847860A Casing pipe scraper
CN110979977A Protection device for sealing working face of petroleum downhole tool
CN111042751A Pulse torsion reversing device for well repair
CN110725890A Damping method of top drive protection damper and top drive protection damper
CN110940253A Method for measuring three-spiral stabilizers with different diameters and equal pitches
CN110657258A Improved method and structure of plug valve
CN110529508A A kind of connection method of anti-back button and structure for bearing positive and negative high torque
CN110566137A anti-sticking stabilizer
CN109443165A A kind of device and method of rapid survey abnormal shape stepped hole
CN109577913A A kind of monoblock type top drive cock