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XINJIANG GRAND OILFIELD TECH CO LTD

Overview
  • Total Patents
    20
  • GoodIP Patent Rank
    82,542
  • Filing trend
    0.0%
About

XINJIANG GRAND OILFIELD TECH CO LTD has a total of 20 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, basic materials chemistry and measurement are ENFRAC INC, PERLMAN WILLIAM and Statoil Gulf Services LLC.

Patent filings in countries

World map showing XINJIANG GRAND OILFIELD TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 20

Patent filings per year

Chart showing XINJIANG GRAND OILFIELD TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 He Zhigang 12
#2 Xu Kaifang 8
#3 Guo Zhenbin 5
#4 Li Qiangui 5
#5 Xu Yang 5
#6 Peng Yao 5
#7 Wei Qingqing 4
#8 Li Huaizhong 4
#9 Feng Xuelong 3
#10 Tang Weihua 3

Latest patents

Publication Filing date Title
CN110792431A Sleeve pressure measuring device and using method
CN110982501A Temperature-controlled plugging gel and application method thereof
CN110823662A High-water-loss rock sample pressing instrument
CN110500086A A kind of EKM throttling sled
CN110487971A A kind of visual leak stopping evaluating apparatus and its application method
CN110485991A A kind of overflow leakage loss monitoring alarm system with control sled
CN110529097A A kind of overflow leakage loss monitoring alarm system
CN110518686A A kind of overflow early warning system power supply unit
CN110374536A A kind of casing firing milling tool
CN110157397A A kind of drilling fluid nanometer film forming sealing agent and its preparation method and application
CN110003864A Leak stopping sealing agent and preparation method thereof in a kind of drilling fluid
CN110017108A A kind of controlled pressure drilling exempts from grouting formula drilling tool check valve
CN110029961A A kind of repeatedly activation bypass system and its application method
CN109973053A A kind of controllable wall scraper and its application method
CN108798565A The fine pressure control drainage system of high pressured slatwater layer and pressure control water discharge method
CN108643889A overflow leakage monitoring method and monitoring system
CN106930710A Counterflush drilling method
CN106930703A Reverse circulating drilling tool encapsulating method
CN105888592A Efficient well hole trimming tool
CN105647494A Agent for leak prevention and leak stoppage while drilling and preparation process thereof