Yongdong Liu

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Changsha, CN

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic oil cylinder, hydraulic cushion system, excavator and con...
- Patent number 9,863,407
- Issue date Jan 9, 2018
- Hunan Sany Intelligent Control Equipment Co., Ltd.
- Xiaogang Yi
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic oil cylinder and related equipments, hydraulic buffer sys...
- Patent number 9,394,927
- Issue date Jul 19, 2016
- Hunan Sany Intelligent Control Equipment Co., Ltd.
- Xiaogang Yi
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
HYDRAULIC OIL CYLINDER, HYDRAULIC CUSHION SYSTEM, EXCAVATOR AND CON...
- Publication number 20130255245
- Publication date Oct 3, 2013
- SANY HEAVY INDUSTRY CO., LTD.
- Xiaogang Yi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Hydraulic Oil Cylinder, Correlative Device Thereof, Hydraulic Cushi...
- Publication number 20130209296
- Publication date Aug 15, 2013
- HUNAN SANY INTELLIGENT CONTROL EQUIPMENT CO., LTD.
- Xiaogang Yi
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Hydraulic Oil Cylinder and Related Equipments, Hydraulic Buffer Sys...
- Publication number 20130199367
- Publication date Aug 8, 2013
- Sany Heavy Industry Co., Ltd.
- Xiaogang Yi
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Application
MULTI-WAY VALVE, HYDRAULIC DEVICE AND CONCRETE PUMP VEHICLE
- Publication number 20120224983
- Publication date Sep 6, 2012
- Xiaogang Yi
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL