H01M 50/403
Manufacturing processes of separators, membranes or diaphragms
H01M50/403 (Manufacturing processes of separators, membranes or diaphragms) appears on 1,754 US grants and 3,264 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,754
- Published applications
- 3,264
- Assignees
- 776
- Inventors
- 5,161
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 8 |
| 2002 | 9 | 30 |
| 2003 | 10 | 23 |
| 2004 | 14 | 17 |
| 2005 | 15 | 22 |
| 2006 | 17 | 25 |
| 2007 | 8 | 28 |
| 2008 | 13 | 24 |
| 2009 | 5 | 33 |
| 2010 | 19 | 37 |
| 2011 | 19 | 53 |
| 2012 | 19 | 65 |
| 2013 | 35 | 98 |
| 2014 | 42 | 147 |
| 2015 | 61 | 172 |
| 2016 | 66 | 142 |
| 2017 | 112 | 198 |
| 2018 | 139 | 183 |
| 2019 | 142 | 186 |
| 2020 | 151 | 183 |
| 2021 | 124 | 226 |
| 2022 | 117 | 209 |
| 2023 | 137 | 297 |
| 2024 | 171 | 306 |
| 2025 | 156 | 334 |
| 2026 | 110 | 218 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Solvent free separators6 Oct 2026US 12,756,066 B2Amtek Research International LLC
- Separator for secondary battery and preparation method therefor, secondary battery, battery module, battery pack, and power consuming device6 Oct 2026US 12,756,067 B2Contemporary Amperex Technology (Hong Kong) Limited
- Dry-process polyethylene membranes, coated membranes, separators, and related methods6 Oct 2026US 12,756,068 B2Celgard, LLC
- System and method for a self-protecting separator for a battery6 Oct 2026US 12,756,070 B2GM Global Technology Operations LLC
- Stack type jelly roll for secondary battery, battery cell including the same, battery pack including the same, and method of manufacturing the same29 Sep 2026US 12,749,716 B2SK On Co., Ltd.
- Method and device for forming three-dimensional separator structure, and method and device for calculating shape parameters of three-dimensional separator structure formed thereby8 Oct 2026US 2026/0312231 A1LG Energy Solution, Ltd.
- Method for manufacturing electrode coated with solid electrolyte membrane1 Oct 2026US 2026/0302157 A1Hyundai Motor Company
- Separator for Power Storage Device1 Oct 2026US 2026/0302530 A1Asahi Kasei Battery Separator Corporation
- Oxidized bacterial cellulose separator for batteries and method for producing the same1 Oct 2026US 2026/0302532 A1Arizona Board of Regents on behalf of Arizona State University
- Separator, secondary battery, and a method for manufacturing separator1 Oct 2026US 2026/0302533 A1Semiconductor Energy Laboratory Co.Ltd.
Most cited
By later US patents
- Method for manufacturing porous structure and method for forming pattern645US 6,565,763 B1Kabushiki Kaisha Toshiba · 2003
- Process of manufacturing porous separator for electrochemical power supply154US 5,948,464 AImra America, Inc. · 1999
- Device enclosures and devices with integrated battery119US 6,986,965 B2Cymbet Corporation · 2006
- Method and apparatus for integrated-battery devices112US 6,805,998 B2Cymbet Corporation · 2004
- Method of continuous processing of thin-film batteries and like devices111US 6,924,164 B2Cymbet Corporation · 2005