Assignee
VA INC
US12 patents
Top patents by PatentIndex Score
US6652165B1Nov 25, 2003
Damping system for mechanical shutter
VA INC29 citations86
US7883280B2Feb 8, 2011
Shutter activation system
VA INC9 citations82
US7845865B2Dec 7, 2010
Non contact shutter activation system and method
VA INC5 citations71
US4884160ANov 28, 1989
Constant current actuator for inductive load
VA INC8 citations71
US4697221ASep 29, 1987
Portable actuator for inductive load
VA INC10 citations71
US7367721B2May 6, 2008
Bi-stable mechanical photographic shutter
VA INC3 citations61
US7513702B2Apr 7, 2009
Non-contact shutter activation system and method
VA INC4 citations60
US4513345AApr 23, 1985
Control circuit for inductive load
VA INC3 citations60
US7614806B2Nov 10, 2009
Damping system for mechanical shutter
VA INC2 citations56
US8783978B2Jul 22, 2014
Shutter having magnet-driven drive ring
VA INC0 citations50
US7334950B2Feb 26, 2008
Quick-change shutter assembly
VA INC3 citations50
US8727645B2May 20, 2014
Shutter assembly with drive ring-mounted magnet
VA INC0 citations48