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Yancheng senxin petroleum machinery co ltd

Overview
  • Total Patents
    11
  • GoodIP Patent Rank
    187,333
About

Yancheng senxin petroleum machinery co ltd has a total of 11 patent applications. Its first patent ever was published in 2012. It filed its patents most often in China. Its main competitors in its focus markets civil engineering are FREYER RUNE, XI AN WUHUA JUNENG BLASTING EQUIPMENT CO LTD and HIORTH ESPEN.

Patent filings in countries

World map showing Yancheng senxin petroleum machinery co ltds patent filings in countries
# Country Total Patents
#1 China 11

Patent filings per year

Chart showing Yancheng senxin petroleum machinery co ltds patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

# Technology
#1 Earth drilling

Top inventors

# Name Total Patents
#1 Xu Hongjun 10
#2 Xu Fengling 8
#3 Xu Pengzheng 3
#4 Xu Shikai 3
#5 Yang Jingsong 2

Latest patents

Publication Filing date Title
CN110306947A A kind of temporary block apparatus after the pressure suitable for oil/gas well in pit shaft and temporarily block up construction method
CN109441397A The back-washable self-test sealing packer of oilfield exploitation and its envelope, anti-flushing well method are tested certainly
CN109505561A Oil field flood suction and oil flow production exploitation repeated on-off valve and its working method
CN109057743A A kind of structure of Packer for blocking water and combinations thereof method for dismounting
CN108915632A A kind of structure of Packer for blocking water and combinations thereof mounting process
CN104358539A Small sleeve drilling liner cementing device for reforming old well and abandoned well in old oil region of oil field
CN103670313A Non-metal anchor
CN103670314A Sand prevention hydraulic anchor
CN103670311A Safe releasing tool for horizontal well
CN103670310A Releasing tool for releasing string
CN103670309A High intensity releasing tool