Assignee
LOU ZHENG
8 patents
Top patents by PatentIndex Score
US7194991B2Mar 27, 2007
Variable valve actuator
LOU ZHENG12 citations83
US7156058B1Jan 2, 2007
Variable valve actuator
LOU ZHENG15 citations83
US9625050B2Apr 18, 2017
Engine valve actuation system
LOU ZHENG2 citations72
US8272357B2Sep 25, 2012
Crossover valve systems
LOU ZHENG4 citations62
US8146547B2Apr 3, 2012
Variable valve actuator with a pneumatic booster
LOU ZHENG4 citations62
US7290509B2Nov 6, 2007
Variable valve actuator
LOU ZHENG4 citations62
US7213549B2May 8, 2007
Variable valve actuator
LOU ZHENG5 citations62
US7302920B2Dec 4, 2007
Variable valve actuator
LOU ZHENG1 citations51