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SICHUAN RENZHI OILFIELD TECHNOLOGY SERVICES CO LTD

Overview
  • Total Patents
    17
  • GoodIP Patent Rank
    216,171
About

SICHUAN RENZHI OILFIELD TECHNOLOGY SERVICES CO LTD has a total of 17 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 basic materials chemistry, macromolecular chemistry and polymers and machines are PENG GUANGMING, GUANGDONG SUNION CHEMICAL & PLASTIC CO LTD and HAYAKAWA RUBBER.

Patent filings in countries

World map showing SICHUAN RENZHI OILFIELD TECHNOLOGY SERVICES CO LTDs patent filings in countries
# Country Total Patents
#1 China 17

Patent filings per year

Chart showing SICHUAN RENZHI OILFIELD TECHNOLOGY SERVICES CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhang Jun 12
#2 Peng Shangping 10
#3 Yu Zhigang 6
#4 Zhang Longjun 5
#5 Peng Bo 5
#6 Yang Fei 4
#7 Li Zhenwei 4
#8 Yang Zhi 3
#9 Li Bin 3
#10 Liu Yaqing 2

Latest patents

Publication Filing date Title
CN104087271A Compound polyamine shale inhibitor for drilling fluid and preparation method thereof
CN103937474A Environment-friendly high strength profile control water shut-off agent and preparation method thereof
CN103525382A Environment-friendly, low-damage and clay-free deep water constant-rheology drilling fluid
CN103497744A Method for preparing shale expansion inhibitor for drilling fluid and prepared product thereof
CN103525380A High-temperature saturated salt resistant fluid loss reducer for water-based drilling fluid
CN103351853A High-temperature gas well and horizontal well drilling fluid and completion fluid containing same
CN103194187A Wetting agent for high-density oil-based drilling fluid and application of wetting agent
CN103087689A High temperature resistance and viscosity reduction agent for water-based drilling fluid
CN102850656A Super silence material and preparation method thereof
CN102850857A Steel pipeline anticorrosive material and preparation method of steel pipeline anticorrosive material
CN102851014A Oil-based shaft stabilizing fluid for gas-liquid conversion and preparation method thereof
CN102852500A Draining gas recovery device for capillary pipe and operation method of draining gas recovery device
CN102851015A Foam drainage agent with high temperature resistance, high condensate oil resistance and hypersalinity resistance and preparation method
CN102898585A Preparation method of high temperature resistant drilling fluid filtrate reducer
CN102718352A One-body domestic-sewage treatment system
CN102127403A High efficient plugging agent for well drilling
CN102127318A Method for modifying activated barite powder