Assignee
LIU YINGJIAN
CN·2 granted patents·0 citations·filing 2009–2009
Top patents by PatentIndex Score
2 records- 0139US9116591B2Method and apparatus for scroll information input in electromagnetic induction wayLIU YINGJIAN·Filed 2009·Granted Aug 25, 2015·0 cites·14 claims
- 0238US8797300B2Method for measuring distance between coordinate indicator and coordinate input deviceLIU YINGJIAN·Filed 2009·Granted Aug 5, 2014·0 cites·7 claims
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