Assignee
CELGARD LLC
US122 patents
Top patents by PatentIndex Score
US6007940ADec 28, 1999
Portable power tool having low rate, rechargeable batteries
CELGARD LLC43 citations96
US5938922AAug 17, 1999
Contactor for degassing liquids
CELGARD LLC105 citations95
US5952120ASep 14, 1999
Method of making a trilayer battery separator
CELGARD LLC111 citations94
US8778055B2Jul 15, 2014
High pressure liquid degassing membrane contactors and methods of manufacturing and use
CELGARD LLC16 citations92
US7662510B2Feb 16, 2010
X-ray sensitive battery separator and a method for detecting the position of a separator in a battery
CELGARD LLC31 citations92
US5916647AJun 29, 1999
Pressure vessel: overmolding a polyolefin onto a polyolefin
CELGARD LLC40 citations92
US10256447B2Apr 9, 2019
Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods
CELGARD LLC3 citations84
US10030157B2Jul 24, 2018
Electrically conductive, transparent, translucent, and/or reflective materials
CELGARD LLC5 citations83
US9455432B2Sep 27, 2016
Multilayer hybrid battery separators for lithium ion secondary batteries and methods of making same
CELGARD LLC4 citations83
US7641795B2Jan 5, 2010
Membrane contactor
CELGARD LLC16 citations83
US8690994B2Apr 8, 2014
Liquid degassing membrane contactors, components, systems and related methods
CELGARD LLC5 citations82
US7803274B2Sep 28, 2010
Contained liquid membrane contactor and a method of manufacturing the same
CELGARD LLC8 citations82
USD546768SJul 17, 2007
Three-port high performance mini hollow fiber membrane contactor
CELGARD LLC10 citations82
US10879514B2Dec 29, 2020
Polylactam coated separator membranes for lithium ion secondary batteries and related coating formulations
CELGARD LLC4 citations81
US9985263B2May 29, 2018
Polylactam coated separator membranes for lithium ion secondary batteries and related coating formulations
CELGARD LLC5 citations81
US7790320B2Sep 7, 2010
Battery separator with Z-direction stability
CELGARD LLC8 citations80
US6020394AFeb 1, 2000
Crosslinking of polymers
CELGARD LLC7 citations74
US11731407B2Aug 22, 2023
Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods
CELGARD LLC1 citations73
US11075429B2Jul 27, 2021
Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods
CELGARD LLC1 citations73
US10720623B2Jul 21, 2020
Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods
CELGARD LLC2 citations73
US10240031B2Mar 26, 2019
Surface modifying agents, modified materials and methods
CELGARD LLC2 citations73
US9783914B2Oct 10, 2017
Copolymer membranes, fibers, products and methods
CELGARD LLC2 citations73
US10741814B2Aug 11, 2020
Microporous battery separators including polyolefin layer and non-woven layer with alkylbenzene sulfonic acid lithium salt surfactant, lithium batteries utilizing the same, and methods of manufacture of the same
CELGARD LLC2 citations72
US10601012B1Mar 24, 2020
Multilayer hybrid battery separators for lithium ion secondary batteries and methods of making same
CELGARD LLC1 citations72
US10196495B2Feb 5, 2019
Functionalized porous membranes and methods of manufacture and use
CELGARD LLC1 citations72
US9339768B2May 17, 2016
Multi-cartridge membrane contactors, modules, systems, and related methods
CELGARD LLC4 citations72
US11532854B2Dec 20, 2022
Battery separator including microporous polyolefin membrane with ceramic coating
CELGARD LLC1 citations71
US10559802B2Feb 11, 2020
Separator membranes for lithium ion batteries and related methods
CELGARD LLC1 citations71
US10333125B2Jun 25, 2019
Multilayer microporous separators for lithium ion secondary batteries and related methods
CELGARD LLC2 citations71
USD546769SJul 17, 2007
Three-port high performance mini hollow fiber membrane contactor
CELGARD LLC7 citations71
US11056750B2Jul 6, 2021
Microlayer membranes, improved battery separators, and methods of manufacture and use
CELGARD LLC2 citations70
US10899898B2Jan 26, 2021
Seam tape and methods of manufacture and use thereof
CELGARD LLC1 citations70
US10347890B2Jul 9, 2019
Laminated multilayer membranes, separators, batteries, and methods
CELGARD LLC1 citations70
US9790337B2Oct 17, 2017
Seam tape and methods of manufacture and use thereof
CELGARD LLC2 citations70
US11094995B2Aug 17, 2021
Membranes, separators, batteries, and methods
CELGARD LLC2 citations69
US10461293B2Oct 29, 2019
Microporous membranes, separators, lithium batteries, and related methods
CELGARD LLC1 citations69
US12100548B2Sep 24, 2024
Ultra high melt temperature microporous high temperature battery separators and related methods
CELGARD LLC2 citations67
US12555872B2Feb 17, 2026
Polyimide coated separators, porous polyimide coatings, lithium batteries, and related methods
CELGARD LLC0 citations62
US12473416B2Nov 18, 2025
Functionalized porous membranes and methods of manufacture and use
CELGARD LLC0 citations62
US12300782B2May 13, 2025
Solid state batteries, SSE batteries, lithium metal batteries with solid state electrolytes, HSSE, separators, and/or coatings, and/or related methods
CELGARD LLC0 citations62
US12246520B2Mar 11, 2025
Low electrical resistance microporous battery separator membranes, separators, cells, batteries, and related methods
CELGARD LLC0 citations62
US12065584B2Aug 20, 2024
Electrically conductive, transparent, translucent, and/or reflective materials
CELGARD LLC0 citations62
US11807733B2Nov 7, 2023
Functionalized porous membranes and methods of manufacture and use
CELGARD LLC0 citations62
US11725099B2Aug 15, 2023
Surface modifying agents, modified materials and methods
CELGARD LLC1 citations62
US11658333B2May 23, 2023
Microporous battery separators including polyolefin layer and non-woven layer with alkylbenzene sulfonic acid lithium salt surfactant, lithium batteries utilizing the same, and methods of manufacture of the same
CELGARD LLC0 citations62
US11482759B2Oct 25, 2022
Oxidation resistant separator for a battery
CELGARD LLC0 citations62
US11283135B2Mar 22, 2022
Porous membranes filled with nano-particles and related methods
CELGARD LLC0 citations62
US11124622B2Sep 21, 2021
Functionalized porous membranes and methods of manufacture and use
CELGARD LLC0 citations62
US10934440B2Mar 2, 2021
Electrically conductive, transparent, translucent, and/or reflective materials
CELGARD LLC0 citations62
USD638096SMay 17, 2011
Wafer-shaped hollow fiber module
CELGARD LLC5 citations62
Showing the top 50 of 122 patents by PatentIndex Score.