Learn more

CNPC FIRST CONSTRUCTION CO

Overview
  • Total Patents
    21
  • GoodIP Patent Rank
    145,234
About

CNPC FIRST CONSTRUCTION CO has a total of 21 patent applications. Its first patent ever was published in 2010. It filed its patents most often in China. Its main competitors in its focus markets machine tools, measurement and chemical engineering are HITACHI KYOWA KOGYO KK, SERIMER and SUYAMA KOGYOSHO KK.

Patent filings in countries

World map showing CNPC FIRST CONSTRUCTION COs patent filings in countries
# Country Total Patents
#1 China 21

Patent filings per year

Chart showing CNPC FIRST CONSTRUCTION COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Peng 8
#2 Hu Shuchao 7
#3 Zhu Xishan 6
#4 Gong Hua 6
#5 Wang Yemin 5
#6 Guo Baojun 3
#7 Yang Yaxing 3
#8 Xu Chengyao 3
#9 Mu Xiangkui 3
#10 Wang Yunfeng 3

Latest patents

Publication Filing date Title
CN105945505A External aligning device for barrier-free welding of pipeline
CN105921996A Large unit coupling centering device and method
CN105750772A Welding-bead interlayer temperature control device
CN105891334A Ultrasonic phased array pipeline ring weld detection mechanism capable of moving stably
CN104897702A Special gamma ray detection tool for small diameter tube butt joints
CN104950003A Gamma ray detection method for butt joint of small-diameter pipe
CN104907668A High-precision high-stability oxyacetylene circle cutting device
CN104759743A Argon arc welding technological method for nickel base alloy tubes
CN104455731A Method for rapidly manufacturing T-shaped pipe holders in batches
CN104128334A Nitrogen-filled segmental oil flushing method for lubricating oil pipeline of compressor set
CN103711140A Sliding-plate adjusting bolt mounting method for large-sized unit
CN104777223A Ultrasonic detection scanner for welding joint of double-channel bent tube
CN103350268A System and method for detecting virtual arc length in monocular-video-camera-based simulated welding training
CN102963817A Tailing force-free large equipment hoisting vertical tail removal method
CN102749340A Adjustable pipe center transillumination device
CN102642104A Internal protection device for pipeline welding
CN102644219A Construction process of large equipment hoisting tail sliding rail capable of reducing friction coefficient
CN102095739A Gamma ray detector specially for close range protective pipeline