Assignee
PNF CO LTD
KR·4 granted patents·3 pending applications·7 citations·filing 2009–2014
Top patents by PatentIndex Score
7 records- 0178US9274623B2Position information input systemPNF CO LTD·Filed 2014·Granted Mar 1, 2016·5 cites·9 claims
- 0266US9342163B2Position measuring device and position information input system using samePNF CO LTD·Filed 2013·Granted May 17, 2016·2 cites·9 claims
- 0350US9471183B1Mobile device incorporating projector and pen-location transcription systemPNF CO LTD·Filed 2013·Granted Oct 18, 2016·0 cites·6 claims
- 0448US9836137B2Ultrasonic wave receiver and position information input apparatus comprising samePNF CO LTD·Filed 2014·Granted Dec 5, 2017·0 cites·14 claims
- 0545US2011018844A1Method and system for inputting document informationPNF CO LTD·Filed 2009·Application pending·0 cites
- 0644US2013328836A1Information input apparatus using ultrasonic signalPNF CO LTD·Filed 2013·Application pending·0 cites
- 0743US2015015492A1Keyboard enabling inputting of position information and keyboard system comprising samePNF CO LTD·Filed 2013·Application pending·0 cites
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