Assignee
DARAMIC LLC
US·84 granted patents·44 pending applications·154 citations·filing 2004–2025
Top patents by PatentIndex Score
128 records- 0198US7498369B2Ultrahigh molecular weight polyethylene articles and method of manufactureDARAMIC LLC·Filed 2005·Granted Mar 3, 2009·51 cites·11 claims
- 0296US11664557B2Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewithDARAMIC LLC·Filed 2021·Granted May 30, 2023·2 cites·20 claims
- 0394US7682536B2Method of making a microporous materialDARAMIC LLC·Filed 2008·Granted Mar 23, 2010·11 cites·17 claims
- 0494US7445735B2Method of making microporous materialDARAMIC LLC·Filed 2004·Granted Nov 4, 2008·33 cites·5 claims
- 0594US2026074368A1Separators for vrla batteries and methods relating theretoDARAMIC LLC·Filed 2025·Application pending·0 cites
- 0693US2025046881A1Oxidation protected separatorDARAMIC LLC·Filed 2024·Application pending·0 cites
- 0792US11539084B2Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereofDARAMIC LLC·Filed 2020·Granted Dec 27, 2022·2 cites·10 claims
- 0892US11128014B2Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewithDARAMIC LLC·Filed 2018·Granted Sep 21, 2021·2 cites·21 claims
- 0992US10056592B2Absorbent glass mat separators, VRLA batteries, and related methods of manufacture and useDARAMIC LLC·Filed 2016·Granted Aug 21, 2018·3 cites·10 claims
- 1092US9461291B2Embossed separators, batteries and methodsDARAMIC LLC·Filed 2012·Granted Oct 4, 2016·7 cites·20 claims
- 1191US2024059896A1Batteries, separators, components, and compositions with heavy metal removal capability and related methodsDARAMIC LLC·Filed 2023·Application pending·0 cites
- 1291US2024339669A1Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereofDARAMIC LLC·Filed 2024·Application pending·0 cites
- 1390US2025364687A1Separators for enhanced flooded batteries, batteries, and related methodsDARAMIC LLC·Filed 2025·Application pending·0 cites
- 1489US2025038356A1Separators, lead acid batteries, and methods and systems associated therewithDARAMIC LLC·Filed 2024·Application pending·0 cites
- 1589US2024356157A1Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewithDARAMIC LLC·Filed 2024·Application pending·0 cites
- 1689US2024097277A1Method of making a microporous materialDARAMIC LLC·Filed 2023·Application pending·0 cites
- 1788US12388155B2Separators for enhanced flooded batteries, batteries, and related methodsDARAMIC LLC·Filed 2023·Granted Aug 12, 2025·0 cites·19 claims
- 1888US9263720B2Battery separator with gel impregnated nonwoven for lead acid batteryDARAMIC LLC·Filed 2013·Granted Feb 16, 2016·5 cites·19 claims
- 1988US2024421322A1Improved lead acid battery separators, separator and electrode assemblies, batteries, systems, and related methodsDARAMIC LLC·Filed 2024·Application pending·0 cites
- 2088US2024405374A1Lead acid battery separators having improved rib-profiles, batteries, systems, and related methodsDARAMIC LLC·Filed 2024·Application pending·0 cites
- 2187US12237534B2Battery separators with cross ribs and related methodsDARAMIC LLC·Filed 2024·Granted Feb 25, 2025·0 cites·15 claims
- 2287US10388931B2Functionalized lead acid battery separators, improved lead acid batteries, and related methodsDARAMIC LLC·Filed 2016·Granted Aug 20, 2019·2 cites·18 claims
- 2386US12113237B2Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewithDARAMIC LLC·Filed 2023·Granted Oct 8, 2024·0 cites·19 claims
- 2486US12107275B2Lead acid battery separators, separator and electrode assemblies, batteries, systems, and related methodsDARAMIC LLC·Filed 2019·Granted Oct 1, 2024·1 cites·14 claims
- 2586US12034181B2Separators with fibrous mat, lead acid batteries using the same, and methods and systems associated therewithDARAMIC LLC·Filed 2023·Granted Jul 9, 2024·0 cites·20 claims
- 2686US11862814B2Method of making a microporous materialDARAMIC LLC·Filed 2023·Granted Jan 2, 2024·0 cites·20 claims
- 2786US11104804B2Separators, batteries, systems, and methods for idle start stop vehiclesDARAMIC LLC·Filed 2018·Granted Aug 31, 2021·1 cites·7 claims
- 2886US2024145860A1Vapor pressure barriers for lead acid batteries for improved water loss performance, separators, systems, and methods of manufacture and use thereofDARAMIC LLC·Filed 2024·Application pending·0 cites
- 2986US2024030498A1Lead-acid battery separators with improved performance and batteries and vehicles with the same and related methodsDARAMIC LLC·Filed 2023·Application pending·0 cites
- 3085US12125988B2Water loss separators used with lead acid batteries, systems for improved water loss performance, and methods of manufacture and use thereofDARAMIC LLC·Filed 2022·Granted Oct 22, 2024·0 cites·8 claims
- 3184US12334586B2Composite layers or separators for lead acid batteriesDARAMIC LLC·Filed 2023·Granted Jun 17, 2025·0 cites·20 claims
- 3284US12176494B2Battery separators with improved conductance, improved batteries, systems, and related methodsDARAMIC LLC·Filed 2023·Granted Dec 24, 2024·0 cites·8 claims
- 3384US10276850B2Multilayer separator and methods of manufacture and useDARAMIC LLC·Filed 2014·Granted Apr 30, 2019·5 cites·24 claims
- 3483US11840632B2Batteries, separators, components, and compositions with heavy metal removal capability and related methodsDARAMIC LLC·Filed 2021·Granted Dec 12, 2023·0 cites·7 claims
- 3583US11183738B2Lead acid battery separators, batteries and related methodsDARAMIC LLC·Filed 2017·Granted Nov 23, 2021·1 cites·35 claims
- 3683US8027147B2Ultracapacitor and method of manufacturing the sameDARAMIC LLC·Filed 2008·Granted Sep 27, 2011·12 cites·12 claims
- 3783US2024234957A1Battery separators, batteries and related methodsDARAMIC LLC·Filed 2024·Application pending·0 cites
- 3883US2025286216A1Composite layers or separators for lead acid batteriesDARAMIC LLC·Filed 2025·Application pending·0 cites
- 3982US12159976B2Oxidation protected separatorDARAMIC LLC·Filed 2022·Granted Dec 3, 2024·0 cites·14 claims
- 4082US2024234947A1Separators for lead acid batteries, improved batteries and related methodsDARAMIC LLC·Filed 2024·Application pending·0 cites
- 4181US12215228B2Separators, batteries, systems, and methods for idle start stop vehiclesDARAMIC LLC·Filed 2022·Granted Feb 4, 2025·0 cites·20 claims
- 4281US11976197B2Separators, batteries, systems, and methods for idle start stop vehiclesDARAMIC LLC·Filed 2021·Granted May 7, 2024·0 cites·5 claims
- 4381US2024429459A1Separators, batteries, battery strings with improved performance, and related methodsDARAMIC LLC·Filed 2024·Application pending·0 cites
- 4480US12148951B2Separators, lead acid batteries, and methods and systems associated therewithDARAMIC LLC·Filed 2022·Granted Nov 19, 2024·0 cites·19 claims
- 4580US12051783B2Lead-acid battery separators, electrodes, batteries, and methods of manufacture and use thereofDARAMIC LLC·Filed 2021·Granted Jul 30, 2024·0 cites·10 claims
- 4680US10361416B2Battery separator for extending the cycle life of a batteryDARAMIC LLC·Filed 2016·Granted Jul 23, 2019·1 cites·15 claims
- 4780US10141556B2Separators for VRLA batteries and methods relating theretoDARAMIC LLC·Filed 2016·Granted Nov 27, 2018·1 cites·20 claims
- 4880US2023110582A1Improved lead acid battery separators, batteries and related methodsDARAMIC LLC·Filed 2022·Application pending·0 cites
- 4979US12230769B2Functionalized lead acid battery separators, improved lead acid batteries, and related methodsDARAMIC LLC·Filed 2022·Granted Feb 18, 2025·0 cites·16 claims
- 5078US12548850B2Separators for VRLA batteries and methods relating theretoDARAMIC LLC·Filed 2021·Granted Feb 10, 2026·0 cites·7 claims
Showing the top 50 of 128 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when DARAMIC LLC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →