Assignee
QING LEI
CN·3 granted patents·12 citations·filing 2010–2011
Top patents by PatentIndex Score
3 records- 0189US9050813B2Ink cartridge refilling device, ink cartridge refilling system and corresponding ink cartridge refilling methodQING LEI·Filed 2011·Granted Jun 9, 2015·10 cites·22 claims
- 0265US9630415B2Ink cartridge refilling device and ink cartridge refilling method utilizing the same for ink refillingQING LEI·Filed 2010·Granted Apr 25, 2017·1 cites·12 claims
- 0353US8707213B2Methods and systems for implementing hot keys for operating a medical deviceQING LEI·Filed 2010·Granted Apr 22, 2014·1 cites·12 claims
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