Assignee
ABRAM KWIN
US8 patents
Top patents by PatentIndex Score
US8201401B2Jun 19, 2012
Passive valve assembly with negative start angle
ABRAM KWIN23 citations92
US9624837B2Apr 18, 2017
Adaptive valve spring retainer
ABRAM KWIN8 citations83
US8857561B2Oct 14, 2014
Exhaust valve combined with active noise control system
ABRAM KWIN6 citations83
US8439156B1May 14, 2013
Muffler with controlled pressure release
ABRAM KWIN13 citations83
US9121315B2Sep 1, 2015
Passive valve with stop pad
ABRAM KWIN8 citations82
US8453672B2Jun 4, 2013
Passive valve for attenuation of low frequency noise
ABRAM KWIN9 citations82
US8776508B2Jul 15, 2014
Passive valve assembly with negative start angle
ABRAM KWIN4 citations72
US9816414B2Nov 14, 2017
Adaptive valve spring retainer with vibration damping
ABRAM KWIN1 citations51