Assignee
DARAMIC INC
US23 patents
Top patents by PatentIndex Score
US5962161AOct 5, 1999
Recombinant battery separator
DARAMIC INC55 citations96
US6120939ASep 19, 2000
Meltblown fiber battery separator
DARAMIC INC72 citations93
US7094498B2Aug 22, 2006
Battery separator with battlemented rib
DARAMIC INC28 citations92
US6703161B2Mar 9, 2004
Multilayer separator for lead-acid batteries
DARAMIC INC40 citations92
US6692868B2Feb 17, 2004
Melt blown battery separator
DARAMIC INC15 citations92
US6689509B2Feb 10, 2004
Laminated multilayer separator for lead-acid batteries
DARAMIC INC36 citations92
US5605549AFeb 25, 1997
Battery electrolyte pad with gelling agents and method
DARAMIC INC20 citations92
US7425387B2Sep 16, 2008
Separator for a lead storage battery
DARAMIC INC22 citations89
US6124059ASep 26, 2000
Separator for sealed lead accumulators
DARAMIC INC64 citations89
US5776630AJul 7, 1998
Separator with longitudinal and transverse ribs for use in accumulators
DARAMIC INC34 citations89
US5618642AApr 8, 1997
Battery separator with sodium sulfate
DARAMIC INC35 citations89
US5478677ADec 26, 1995
Composite gauntlet/separator
DARAMIC INC40 citations86
US6869726B2Mar 22, 2005
Reinforced multilayer separator for lead-acid batteries
DARAMIC INC14 citations84
US6852444B2Feb 8, 2005
Reinforced multilayer separator for lead-acid batteries
DARAMIC INC12 citations84
US7238744B2Jul 3, 2007
Ultrahigh molecular weight polyethylene articles and method of manufacture
DARAMIC INC8 citations73
US6537696B2Mar 25, 2003
Nonwoven separator for a nickel-metal hydride battery
DARAMIC INC11 citations73
US6485867B1Nov 26, 2002
Use of lignins in thermoplastics
DARAMIC INC17 citations73
US6139795AOct 31, 2000
Use of microporous polyolefin for absorbing sweat and other bodily exhalations
DARAMIC INC14 citations71
US5773079AJun 30, 1998
Process for repairing battery separators
DARAMIC INC11 citations70
US6403264B1Jun 11, 2002
Lead/sulphuric acid-accumulator, separator for lead/sulphuric acid accumulators and process to reduce the formation of colored deposits in a lead/sulphuric acid accumulators
DARAMIC INC12 citations66
US7214444B2May 8, 2007
Melt blown battery separator
DARAMIC INC4 citations63
US6539615B2Apr 1, 2003
In-line lug brushing assembly
DARAMIC INC4 citations60
US11018399B2May 25, 2021
Battery separator with improved oxidation stability
DARAMIC INC0 citations50