Yi; Xiaogang

Patent Applications and Registrations

Patent applications and USPTO patent grants for Yi; Xiaogang.The latest application filed is for "leg control system and engineering machine".

Company Profile

0.22.24

Yi; Xiaogang - Hunan N/A CN
Yi; Xiaogang - Changsha N/A CN
Yi; Xiaogang - Changsa CN
Yi; Xiaogang - Hunan Province CN

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Hydraulic oil cylinder, hydraulic cushion system, excavator and concrete pump truck Grant 9,863,407 - Yi , et al. January 9, 2	2018-01-09
Cylinder-driven lifting mechanism of compaction machine and compaction machine Grant 9,771,247 - Yi , et al. September 26, 2	2017-09-26
Power gear-shifting transmission and engineering machinery Grant 9,447,870 - Yi , et al. September 20, 2	2016-09-20
Hydraulic oil cylinder and related equipments, hydraulic buffer system, excavator and concrete pump truck Grant 9,394,927 - Yi , et al. July 19, 2	2016-07-19
Boom apparatus and concrete pump vehicle having same Grant 9,394,707 - Yi , et al. July 19, 2	2016-07-19
Pump truck stability control system, control method, and pump truck Grant 9,381,844 - Yi , et al. July 5, 2	2016-07-05
Concrete pumping structure and control method thereof Grant 9,322,398 - Yi , et al. April 26, 2	2016-04-26
Method and device for controlling mechanical articulated arm Grant 9,302,392 - Yi , et al. April 5, 2	2016-04-05
Method and system for controlling engine speed and boom-type engineering machine Grant 9,194,139 - Yi , et al. November 24, 2	2015-11-24
Distributing valve for concrete pump and the concrete pump Grant 9,188,112 - Yi , et al. November 17, 2	2015-11-17
Boom system, engineering machinery, and a method for acquiring boom system distal end position parameter Grant 9,187,916 - Yi , et al. November 17, 2	2015-11-17
Leg Control System and Engineering Machine App 20150252552 - Yi; Xiaogang ; et al.	2015-09-10
Pump Truck Stability Control System, Control Method, And Pump Truck App 20150112555 - Yi; Xiaogang ; et al.	2015-04-23
Boom System, Engineering Machinery, And A Method For Acquiring Boom System Distal End Position Parameter App 20150081164 - Yi; Xiaogang ; et al.	2015-03-19
Power Gear-Shifting Transmission and Engineering Machinery App 20150027253 - Yi; Xiaogang ; et al.	2015-01-29
Cylinder-driven Lifting Mechanism Of Compaction Machine And Compaction Machine App 20140246635 - Yi; Xiaogang ; et al.	2014-09-04
Matching authentication method, device and system for wireless communication Grant 8,775,804 - Yi , et al. July 8, 2	2014-07-08
Boom Apparatus And Concrete Pump Vehicle Having Same App 20140175254 - Yi; Xiaogang ; et al.	2014-06-26
Method And System For Controlling Engine Speed And Boom-type Engineering Machine App 20140129096 - Yi; Xiaogang ; et al.	2014-05-08
Hydraulic Oil Cylinder, Hydraulic Cushion System, Excavator And Concrete Pump Truck App 20130255245 - Yi; Xiaogang ; et al.	2013-10-03
Hydraulic Oil Cylinder, Correlative Device Thereof, Hydraulic Cushion System, Excavator And Concrete Pump Truck App 20130209296 - Yi; Xiaogang ; et al.	2013-08-15
Hydraulic Oil Cylinder and Related Equipments, Hydraulic Buffer System, Excavator and Concrete Pump Truck App 20130199367 - Yi; Xiaogang ; et al.	2013-08-08
Method And Device For Controlling Mechanical Articulated Arm App 20130197695 - Yi; Xiaogang ; et al.	2013-08-01
Distributing Valve For Concrete Pump And The Concrete Pump App 20130034457 - Yi; Xiaogang ; et al.	2013-02-07
Concrete Pumping Structure And Control Method Thereof App 20130004341 - Yi; Xiaogang ; et al.	2013-01-03
Angle Measurement Device, Angle Measurement Method And Construction Machinery App 20120303314 - Yi; Xiaogang ; et al.	2012-11-29
Wireless Link Backup System App 20120276855 - Yi; Xiaogang ; et al.	2012-11-01
Multi-way Valve, Hydraulic Device And Concrete Pump Vehicle App 20120224983 - Yi; Xiaogang ; et al.	2012-09-06
Method and device for suppressing vibration of boom of concrete pump truck Grant 8,037,682 - Yi , et al. October 18, 2	2011-10-18
Matching Authentication Method, Device And System For Wireless Communication App 20110191833 - YI; Xiaogang ; et al.	2011-08-04
Method and Device for Suppressing Vibration of Boom of Concrete Pump Truck App 20090211435 - Yi; Xiaogang ; et al.	2009-08-27

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