Lei Qing

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Zhuhai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ink cartridge refilling device and ink cartridge refilling method u...
- Patent number 9,630,415
- Issue date Apr 25, 2017
- Zhuhai Ninestar Management Co., Ltd.
- Lei Qing
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink cartridge refilling device, ink cartridge refilling system and...
- Patent number 9,050,813
- Issue date Jun 9, 2015
- Zhuhai Ninestar Management Co., Ltd.
- Lei Qing
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
INK CARTRIDGE REFILLING DEVICE, INK CARTRIDGE REFILLING SYSTEM AND...
- Publication number 20130255826
- Publication date Oct 3, 2013
- Lei Qing
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK CARTRIDGE REFILLING DEVICE AND INK CARTRIDGE REFILLING METHOD U...
- Publication number 20130037164
- Publication date Feb 14, 2013
- Lei Qing
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS