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GUIZHOU AEROSPACE KAISHAN PETROLEUM INSTR CO LTD

Overview
  • Total Patents
    145
  • GoodIP Patent Rank
    14,393
  • Filing trend
    ⇧ 38.0%
About

GUIZHOU AEROSPACE KAISHAN PETROLEUM INSTR CO LTD has a total of 145 patent applications. It increased the IP activity by 38.0%. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, electrical machinery and energy and telecommunications are EXPRO NORTH SEA LTD, KVAERNER OILFIELD PRODUCTS INC and ENOVATE SYSTEMS LTD.

Patent filings in countries

World map showing GUIZHOU AEROSPACE KAISHAN PETROLEUM INSTR CO LTDs patent filings in countries
# Country Total Patents
#1 China 145

Patent filings per year

Chart showing GUIZHOU AEROSPACE KAISHAN PETROLEUM INSTR CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Feng Guihong 26
#2 Pang Yunwei 26
#3 Luo Yulin 23
#4 Wang Kaiyi 18
#5 Wang Shouduo 16
#6 Wei Yanhong 14
#7 Zeng Yong 12
#8 Zhong Changhong 11
#9 Li Lingli 11
#10 Zhao Zongqi 10

Latest patents

Publication Filing date Title
CN112112586A Guide claw releasing mechanism with transmission shaft inside
CN112012723A Method for long-term synchronous monitoring of concentric well layered pressure
CN112234675A Method for prolonging service life of battery in testing plunger
CN112012719A Side surface protection device for blocking type pressure gauge
CN112012689A Plugging device for oil field seal inspection instrument
CN112228039A Test cable control device
CN111954376A Method for controlling distance between light-emitting element and photosensitive element and optical coupler structure
CN111913108A Protection method and device for oil field test motor
CN111963145A Explosion-proof method and structure of electric quantity transmitter
CN110943435A Motor output control method for underground direct-reading measuring and adjusting instrument
CN110932606A PWM (pulse-width modulation) starting algorithm for underground long-cable direct-current motor
CN110985530A Method and structure for preventing shaft scaling and resisting axial impact
CN110848427A Method and structure for preventing valve rod sealing ring from falling off
CN111022032A Single-well intelligent measurement and control instrument
CN110855279A Circuit breaker for cutting off power supply at regular time
CN110863796A Electric pressure relief method and device for sealing section
CN110863799A Electric descaling method and device for oil field water injection well
CN110932745A Design method of combined RTU
CN110644972A Underground connection structure of layered oil production layered test system cable
CN110648516A Wireless monitoring device for well site