QC

Qin Cai

Microsoft: 9 patents #4,890 of 40,388Top 15%
DP Delta Electronics Int'L (Singapore) Pte: 2 patents #17 of 63Top 30%
RE Realnetworks: 1 patents #80 of 155Top 55%
Overall (All Time): #364,563 of 4,157,543Top 9%
13
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12344622 Refining method of midbody of latamoxef sodium Yifeng Lu, Xingyu Chen 2025-07-01
10146305 Eye gaze tracking using binocular fixation constraints Zhengyou Zhang 2018-12-04
10083925 Packaging process of electronic component Da-Jung Chen 2018-09-25
9875977 Packaging process of electronic component Da-Jung Chen 2018-01-23
9864430 Gaze tracking via eye gaze model Dijia Wu, Michael J. Conrad, Tim W. Burrell, Xu Miao, Zicheng Liu +1 more 2018-01-09
9684827 Eye gaze tracking based upon adaptive homography mapping Zhengyou Zhang, Zicheng Liu, Jia-Bin Huang 2017-06-20
9552061 Eye gaze tracking using binocular fixation constraints Zhengyou Zhang 2017-01-24
9430040 Eye gaze detection with multiple light sources and sensors Zhengyou Zhang, Anoop Gupta 2016-08-30
8675926 Distinguishing live faces from flat surfaces Zhengyou Zhang, Pieter Kasselman, Arthur H. Baker 2014-03-18
8605890 Multichannel acoustic echo cancellation Zhengyou Zhang 2013-12-10
8339459 Multi-camera head pose tracking Zhengyou Zhang, Aswin C. Sankaranarayanan, Qing Zhang, Zicheng Liu 2012-12-25
7844456 Grammar confusability metric for speech recognition John Hamaker 2010-11-30
7748030 Licensing digital content use Erik W. Selberg, David B. Hedbor, Chelsea Celest Krueger 2010-06-29