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DONG IN ENG CO LTD

Overview
  • Total Patents
    29
  • GoodIP Patent Rank
    54,933
  • Filing trend
    ⇧ 600.0%
About

DONG IN ENG CO LTD has a total of 29 patent applications. It increased the IP activity by 600.0%. Its first patent ever was published in 2014. It filed its patents most often in Republic of Korea, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets mechanical elements, thermal processes and electrical machinery and energy are Changzhou lianyi special stainless steel tube co ltd, CHENGDU XINGXIE TECH CO LTD and LEE JEONG YEAN.

Patent filings per year

Chart showing DONG IN ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kim Sang Ki 13
#2 Kim Dong Soo 4
#3 Oh Young Han 4
#4 Kim Kook Soo 3
#5 Lee Te Gyou 2
#6 Ahn Jong Ryul 2
#7 Ko Sung Jong 1
#8 An Kil Woon 1
#9 Kang Ki Won 1
#10 Kim Kook-Soo 1

Latest patents

Publication Filing date Title
KR102201504B1 Non-point pollution source reducing apparatus
KR102112197B1 Low temperature pipe insulation apparatus
WO2021040109A1 Heat insulating device for pipe provided with reflectors
KR101889443B1 Pipe insulation apparatus
KR101890284B1 Valve unit insulation apparatus
KR101890293B1 Insulation apparatus of branch pipe
KR101820450B1 Pipe insulation apparatus with vibration prevention function
KR101704348B1 Rotary friction boiler
KR101693149B1 Rotary friction heater
KR101727682B1 Pipe heating cover
WO2017090809A1 Integrated energy-saving system comprising two-shaft rotating generator and motor boiler
KR101603941B1 Friction boiler
KR20160129284A Pipe insulation apparatus
KR101577621B1 A planetary gear unit on the motor shaft and the center axis of rotation to the right and left two pillars reciprocal rotation two private motor device
KR101535509B1 fluid-friction type electric boiler head having spiral groove
KR20160033475A magnetic induction head with electric boiler for friction heat of fluid
KR20160031906A layered head with electric boiler for friction heat of fluid
KR20160031194A heat blow steam multi-stage head for fluid friction boiler
KR20160031193A hot air blower head for fluid frictional heat boiler
KR101514668B1 Two shaft generators