Learn more

JIANGSU RUDONG LIANFENG PETROLEUM MACHINERY CO LTD

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    94,410
About

JIANGSU RUDONG LIANFENG PETROLEUM MACHINERY CO LTD has a total of 18 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, measurement and packaging and shipping are KVAERNER OILFIELD PRODUCTS INC, SPEX SERVICES LTD and ENOVATE SYSTEMS LTD.

Patent filings in countries

World map showing JIANGSU RUDONG LIANFENG PETROLEUM MACHINERY CO LTDs patent filings in countries
# Country Total Patents
#1 China 18

Patent filings per year

Chart showing JIANGSU RUDONG LIANFENG PETROLEUM MACHINERY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wang Qinfeng 18
#2 Wang Zhanpeng 18
#3 Wang Jinsong 1

Latest patents

Publication Filing date Title
CN111827902A Turntable-chuck transition ring
CN111852356A Novel wear-resistant bushing
CN111749629A Novel hydraulic chuck
CN111764843A Novel hydraulic overturning elevator
CN110847829A Novel submarine is opened and is adopted slip formula chuck
CN110529060A A kind of novel tongs and Power Tong safety hand handle
CN110455142A A kind of novel double scale bikini drilling tool gauge
CN110424905A A kind of Novel hydraulic elevator of band folding signal designation
CN110206500A A kind of novel pneumatic double tube chuck
CN109869100A A kind of novel marine riser elevator spider
CN108979567A A kind of Directional Drilling operation on the sea clamping drilling rod safety device
CN109083604A A kind of novel hinge pin formula chuck
CN109138866A A kind of hydraulic elevator chuck Novel control cabinet indicator
CN108979566A A kind of chuck novel operating handle mechanism
CN109000031A A kind of anti-error touching safe self-locking hand handle of reversal valve
CN109057727A The slips of a kind of hydraulic elevator or chuck clamps touching device
CN108675114A A kind of single auxiliary elevator Bolt with latching action
CN108590548A A kind of SDHL types big load drill pipe slip