Linghan Yue

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Qiqihar, CN

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Patents Grantslast 30 patents

Information Patent Grant
Bottom door device and hopper car having the same
- Patent number 9,061,688
- Issue date Jun 23, 2015
- Qiqihar Railway Rolling Stock Co., Ltd.
- Linghan Yue
- B61 - RAILWAYS
Information Patent Grant
Ballast hopper car discharge door control system
- Patent number 8,950,340
- Issue date Feb 10, 2015
- Qiqihar Railway Rolling Stock Co., Ltd.
- Shengkun Wang
- B61 - RAILWAYS
Information Patent Grant
Bottom door opening-closing mechanism, bottom door device and drop-...
- Patent number 8,939,088
- Issue date Jan 27, 2015
- Qiqihar Railway Rolling Stock Co., Ltd.
- Linghan Yue
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
BOTTOM DOOR DEVICE AND HOPPER CAR HAVING THE SAME
- Publication number 20140224148
- Publication date Aug 14, 2014
- QIQIHAR RAILWAY ROLLING STOCK CO., LTD.
- Linghan Yue
- B61 - RAILWAYS
Information Patent Application
BOTTOM DOOR OPENING-CLOSING MECHANISM, BOTTOM DOOR DEVICE AND DROP-...
- Publication number 20140216299
- Publication date Aug 7, 2014
- QIQIHAR RAILWAY ROLLING STOCK CO., LTD.
- Linghan Yue
- B61 - RAILWAYS
Information Patent Application
BALLAST HOPPER CAR
- Publication number 20130019776
- Publication date Jan 24, 2013
- QIQIHAR RAILWAY ROLLING STOCK CO., LTD.
- Shengkun Wang
- B61 - RAILWAYS
Information Patent Application
BALLAST HOPPER CAR DISCHARGE DOOR CONTROL SYSTEM
- Publication number 20130000509
- Publication date Jan 3, 2013
- QIQIHAR RAILWAY ROLLING STOCK CO., LTD.
- Shengkun Wang
- B61 - RAILWAYS