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DONG GANG

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    158,326
About

DONG GANG has a total of 14 patent applications. Its first patent ever was published in 1991. It filed its patents most often in China. Its main competitors in its focus markets thermal processes, civil engineering and packaging and shipping are IN SITU TECHNOLOGY INC, WELLPARTNER PRODUCTS AS and WUHAN HAIWANG MECHANICAL & ELECTRICAL ENG TECHNOLOGY CO LTD.

Patent filings in countries

World map showing DONG GANGs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing DONG GANGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dong Gang 7
#2 Nie Xiaowei 6
#3 Zhang Hongwei 6
#4 Wang Jian 5
#5 Zhang Teng 5
#6 Duan Weigang 5
#7 Lyu Mingchun 3
#8 Wu Weiyi 3
#9 He Ruiwu 2
#10 Sun Shaoguang 2

Latest patents

Publication Filing date Title
CN110206519A Extract underground heat oil rig
CN110220301A A kind of oil field individual well heating furnace
CN110217751A Single-well oil storage tank oil extraction oil filling riser vertical section heating device
CN109138855A Extract underground heat hollow rod
CN109282681A Extract the heat-exchanger rig of oil field extracted water heat
CN109113588A A kind of extraction underground heat hollow rod
CN106514860A Reinforced concrete trough manufacturing method
CN105052877A Self-traveling lifting type sprayer spraying rod device
CN105104344A Backpack type power sprayer
CN105103755A Fertilizer spreading seeder
CN106320509A Sewer slag-salvaging cleaning device
CN103489723A Air switch capable of being connected with sensor
CN103400728A Circuit breaker controlled by sensor
CN1067977A Utilize the wireless interspeaker automatic language alarm