Assignee
YU QIFENG
CN·3 granted patents·54 citations·filing 2009–2010
Top patents by PatentIndex Score
3 records- 0177US8405716B2Folding optical path transfer videometrics method for measuring the three-dimensional position and attitude of non-intervisible objectsYU QIFENG·Filed 2009·Granted Mar 26, 2013·22 cites·2 claims
- 0276US9095431B2Invasive cardiac valveYU QIFENG·Filed 2010·Granted Aug 4, 2015·14 cites·12 claims
- 0364US9057609B2Ground-based camera surveying and guiding method for aircraft landing and unmanned aerial vehicle recoveryYU QIFENG·Filed 2009·Granted Jun 16, 2015·18 cites·3 claims
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