Qinfen Zheng

UM University Of Maryland: 1 patents #209 of 857Top 25%

📍 Ellicott City, MD: #403 of 1,185 inventorsTop 35%

🗺 Maryland: #10,129 of 35,612 inventorsTop 30%

Overall (All Time): #1,537,379 of 4,157,543Top 40%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
8913781	Methods and systems for audience monitoring	Tom Strat	2014-12-16
8457356	Method and system of video object tracking	—	2013-06-04
8179440	Method and system for object surveillance and real time activity recognition	Yang Ran, Ramalingam Chellappa	2012-05-15