How many patents does
Celgard have?
patents
473
families
78
granted
105
applications
368
US
115
JP
81
CN
76
WO
57
KR
54
EP
46
RoW
44
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The report contains ten-year analysis with the following sections
- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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Celgard
Top ten assignees appearing on patents
2009 - 2018
| celgard | 293 |
| 3m innovative properties company (… 🛈 | 11 |
| ezek technology | 2 |
| freescale semiconductor | 2 |
| asahi kasei | 1 |
2009
| celgard | 27 |
Celgard
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| co-extruded, multi-layered battery separator | 27 | 2006 |
| biaxially oriented microporous membrane | 20 | 2006 |
| high melt temperature microporous lithium-ion rechargeable battery separators and method… 🛈 | 17 | 2010 |
| biaxially oriented porous membranes, composites, and methods of manufacture and use | 17 | 2010 |
| x-ray sensitive battery separators and related methods | 17 | 2010 |
| high pressure liquid degassing membrane contactors and methods of manufacturing and use | 16 | 2009 |
| improved contactors, cartridges, components, systems, and related methods | 14 | 2011 |
| surface modified polymeric materials, modified functionalized polymers, functional polym… 🛈 | 13 | 2011 |
| ultra high melt temperature microporous high temperature battery separators and related … 🛈 | 13 | 2010 |
| a wafer-shaped hollow fiber module for in-line use in a piping system | 11 | 2008 |