Assignee
DARAMIC LLC
US84 patents
Top patents by PatentIndex Score
US7498369B2Mar 3, 2009
Ultrahigh molecular weight polyethylene articles and method of manufacture
DARAMIC LLC51 citations97
US7445735B2Nov 4, 2008
Method of making microporous material
DARAMIC LLC33 citations96
US7682536B2Mar 23, 2010
Method of making a microporous material
DARAMIC LLC11 citations92
USD847746SMay 7, 2019
Battery separator
DARAMIC LLC6 citations84
US10276850B2Apr 30, 2019
Multilayer separator and methods of manufacture and use
DARAMIC LLC5 citations84
US9461291B2Oct 4, 2016
Embossed separators, batteries and methods
DARAMIC LLC7 citations83
US8027147B2Sep 27, 2011
Ultracapacitor and method of manufacturing the same
DARAMIC LLC12 citations81
US11664557B2May 30, 2023
Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewith
DARAMIC LLC2 citations73
US11128014B2Sep 21, 2021
Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewith
DARAMIC LLC2 citations73
USD878296SMar 17, 2020
Battery separator
DARAMIC LLC2 citations73
US11539084B2Dec 27, 2022
Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereof
DARAMIC LLC2 citations72
US10056592B2Aug 21, 2018
Absorbent glass mat separators, VRLA batteries, and related methods of manufacture and use
DARAMIC LLC3 citations72
US11104804B2Aug 31, 2021
Separators, batteries, systems, and methods for idle start stop vehicles
DARAMIC LLC1 citations71
US10811655B2Oct 20, 2020
Separators for enhanced flooded batteries, batteries, and related methods
DARAMIC LLC1 citations70
US10388931B2Aug 20, 2019
Functionalized lead acid battery separators, improved lead acid batteries, and related methods
DARAMIC LLC2 citations70
US9263720B2Feb 16, 2016
Battery separator with gel impregnated nonwoven for lead acid battery
DARAMIC LLC5 citations70
US10361416B2Jul 23, 2019
Battery separator for extending the cycle life of a battery
DARAMIC LLC1 citations65
US12237534B2Feb 25, 2025
Battery separators with cross ribs and related methods
DARAMIC LLC0 citations62
US12159976B2Dec 3, 2024
Oxidation protected separator
DARAMIC LLC0 citations62
US12125988B2Oct 22, 2024
Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereof
DARAMIC LLC0 citations62
US12113237B2Oct 8, 2024
Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewith
DARAMIC LLC0 citations62
US12107275B2Oct 1, 2024
Lead acid battery separators, separator and electrode assemblies, batteries, systems, and related methods
DARAMIC LLC1 citations62
US12034181B2Jul 9, 2024
Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewith
DARAMIC LLC0 citations62
US11942655B2Mar 26, 2024
Battery separators with cross ribs and related methods
DARAMIC LLC0 citations62
US11870041B2Jan 9, 2024
Lead-acid battery separators with improved performance and batteries and vehicles with the same and related methods
DARAMIC LLC0 citations62
US11862814B2Jan 2, 2024
Method of making a microporous material
DARAMIC LLC0 citations62
US11563256B2Jan 24, 2023
Method of making a microporous material
DARAMIC LLC0 citations62
US11302991B2Apr 12, 2022
Oxidation protected separator
DARAMIC LLC0 citations62
US10985428B2Apr 20, 2021
Lead-acid battery separators with improved performance and batteries and vehicles with the same and related methods
DARAMIC LLC0 citations62
US10938010B2Mar 2, 2021
Absorbent glass mat separators, VRLA batteries, and related methods of manufacture and use
DARAMIC LLC0 citations62
US10923700B2Feb 16, 2021
Multilayer separator and methods of manufacture and use
DARAMIC LLC0 citations62
US7604687B2Oct 20, 2009
Gas filtration media
DARAMIC LLC2 citations62
US12548850B2Feb 10, 2026
Separators for VRLA batteries and methods relating thereto
DARAMIC LLC0 citations61
US12215228B2Feb 4, 2025
Separators, batteries, systems, and methods for idle start stop vehicles
DARAMIC LLC0 citations61
US12051783B2Jul 30, 2024
Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereof
DARAMIC LLC0 citations61
US11996582B2May 28, 2024
Separators for VRLA batteries and methods relating thereto
DARAMIC LLC0 citations61
US11976197B2May 7, 2024
Separators, batteries, systems, and methods for idle start stop vehicles
DARAMIC LLC0 citations61
US11840632B2Dec 12, 2023
Batteries, separators, components, and compositions with heavy metal removal capability and related methods
DARAMIC LLC0 citations61
US11742550B2Aug 29, 2023
Lead acid battery separators, batteries, and related methods
DARAMIC LLC1 citations61
US11208558B2Dec 28, 2021
Batteries, separators, components, and compositions with heavy metal removal capability and related methods
DARAMIC LLC0 citations61
US11152647B2Oct 19, 2021
Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereof
DARAMIC LLC0 citations61
US10141556B2Nov 27, 2018
Separators for VRLA batteries and methods relating thereto
DARAMIC LLC1 citations61
US10116007B2Oct 30, 2018
Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereof
DARAMIC LLC1 citations61
US12388155B2Aug 12, 2025
Separators for enhanced flooded batteries, batteries, and related methods
DARAMIC LLC0 citations60
US12148951B2Nov 19, 2024
Separators, lead acid batteries, and methods and systems associated therewith
DARAMIC LLC0 citations60
US11916252B2Feb 27, 2024
Vapor pressure barriers for lead acid batteries for improved water loss performance, separators, systems, and methods of manufacture and use thereof
DARAMIC LLC0 citations60
US11881593B2Jan 23, 2024
Vapor pressure barriers for lead acid batteries for improved water loss performance, separators, systems, and methods of manufacture and use thereof
DARAMIC LLC0 citations60
US11843126B2Dec 12, 2023
Separators for enhanced flooded batteries, batteries, and related methods
DARAMIC LLC0 citations60
US11502374B2Nov 15, 2022
Separators for enhanced flooded batteries, batteries, and related methods
DARAMIC LLC0 citations60
US11335974B2May 17, 2022
Separators, lead acid batteries, and methods and systems associated therewith
DARAMIC LLC0 citations60
Showing the top 50 of 84 patents by PatentIndex Score.