QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.

Patent Applications and Registrations

Patent applications and USPTO patent grants for QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD..The latest application filed is for "movable loading machine with a twin telescopic boom structure".

Company Profile

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QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD. - QINGDAO CN
QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD. - Shandong CN
QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD. - QINGDAO, SHANDONG 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
Movable Loading Machine With A Twin Telescopic Boom Structure App 20180201454 - XING; XIAODONG ; et al.	2018-07-19
Front suspension system having overload protection Grant 9,919,721 - Chen , et al. March 20, 2	2018-03-20
System And Method For Parallel Power Supply Control For Auxiliary Converters Of Motor Train Unit In Presence Of Interconnecting Lines App 20160167528 - YANG; DONGJUN ; et al.	2016-06-16
Movable Loading Machine With A Twin Telescopic Boom Structure App 20160152423 - XING; XIAODONG ; et al.	2016-06-02
Balancing Apparatus For A Transition Coupler App 20160121911 - LIU; HUI ; et al.	2016-05-05
Opening/closing Mechanism Equipped With A Self-lock Device App 20160115727 - LIU; HUI ; et al.	2016-04-28
Segmented Inverting Cover Plate Apparatus For Underfloor Vehicle Lifting Jack App 20160060939 - DING; HUI ; et al.	2016-03-03
Segmented Inverting Cover Plate Apparatus For Underfloor Vehicle Lifting Jack App 20150128500 - Ding; Hui ; et al.	2015-05-14
Front Installed Suspension System Having Overload Protection Field Of The Invention App 20150114921 - Chen; Kai ; et al.	2015-04-30
Transverse adjustment mechanism for bilateral half-spring type load-carrying head Grant 9,016,209 - Ding , et al. April 28, 2	2015-04-28
Telescopic Mechanism In Telescopic Hitch Buffer Device For Use In High Speed Electric Multiple Units App 20140360962 - LV; XIAOZHONG ; et al.	2014-12-11
Transverse Adjustment Mechanism For Bilateral Half-spring Type Load-carrying Head App 20130255412 - DING; HUI ; et al.	2013-10-03
Semi-permanent vehicle coupler for light rail Grant 8,418,862 - Liu , et al. April 16, 2	2013-04-16
Comprehensive test bed for vehicle body Grant 8,230,730 - Ma , et al. July 31, 2	2012-07-31
Semi-permanent Vehicle Coupler For Light Rail App 20110253663 - Liu; Fenggang ; et al.	2011-10-20

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