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Seoul, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Hydraulic system for construction machine
Patent number
9,829,013
Issue date
Nov 28, 2017
Doosan Infracore Co., Ltd.
Yong Lak Cho
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Hydraulic system for construction equipment
Patent number
9,618,018
Issue date
Apr 11, 2017
Doosan Infracore Co., Ltd.
Min Ha An
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Apparatus and method for controlling oil hydraulic pump for excavator
Patent number
9,580,888
Issue date
Feb 28, 2017
Doosan Infracore Co., Ltd.
Min Ha Ahn
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Pump control operating system of construction machine
Patent number
8,984,875
Issue date
Mar 24, 2015
Doosan Infracore Co., Ltd.
Dal Sik Jang
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Hydraulic pump controller for construction machine
Patent number
8,707,690
Issue date
Apr 29, 2014
Doosan Infracore Co., Ltd.
Young Sik Cho
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Grant
Fluid pump control system for excavators
Patent number
7,430,859
Issue date
Oct 7, 2008
Doosan Infracore Co., ltd.
Dal Sik Jang
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Patents Applications
last 30 patents
Information
Patent Application
HYDRAULIC SYSTEM FOR CONSTRUCTION MACHINE
Publication number
20160032945
Publication date
Feb 4, 2016
Doosan Infracore Co., Ltd.
Yong Lak CHO
F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information
Patent Application
APPARATUS AND METHOD FOR CONTROLLING OIL HYDRAULIC PUMP FOR EXCAVATOR
Publication number
20150376871
Publication date
Dec 31, 2015
DOOSAN INFRACORE CO., LTD.
Min Ha Ahn
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
APPARATUS AND METHOD FOR CONTROLLING CONSTRUCTION MACHINERY
Publication number
20130158679
Publication date
Jun 20, 2013
Doosan Infracore Co., Ltd.
Joonho Oh
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
PUMP CONTROL OPERATING SYSTEM OF CONSTRUCTION MACHINE
Publication number
20120279211
Publication date
Nov 8, 2012
Doosan Infracore Co., Ltd.
Dal Sik Jang
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
HYDRAULIC PUMP CONTROLLER FOR CONSTRUCTION MACHINE
Publication number
20110262287
Publication date
Oct 27, 2011
Doosan Infracore Co., Ltd.
Young Sik Cho
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Fluid pump control system for excavators
Publication number
20060147315
Publication date
Jul 6, 2006
Doosan Infracore Co., Ltd.
Dal Sik Jang
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING