H01M 50/423
Polyamide resins
H01M50/423 (Polyamide resins) appears on 510 US grants and 857 published applications in this corpus.
Search patents in H01M- Granted patents
- 510
- Published applications
- 857
- Assignees
- 290
- Inventors
- 1,669
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 6 |
| 2003 | 7 | 22 |
| 2004 | 8 | 4 |
| 2005 | 3 | 11 |
| 2006 | 9 | 12 |
| 2007 | 4 | 6 |
| 2008 | 4 | 11 |
| 2009 | 3 | 15 |
| 2010 | 0 | 11 |
| 2011 | 7 | 25 |
| 2012 | 9 | 22 |
| 2013 | 11 | 29 |
| 2014 | 16 | 36 |
| 2015 | 20 | 35 |
| 2016 | 20 | 37 |
| 2017 | 27 | 75 |
| 2018 | 32 | 40 |
| 2019 | 50 | 80 |
| 2020 | 36 | 52 |
| 2021 | 36 | 34 |
| 2022 | 34 | 54 |
| 2023 | 31 | 64 |
| 2024 | 26 | 56 |
| 2025 | 36 | 69 |
| 2026 | 23 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Metal-air battery22 Sep 2026US 12,744,280 B2Toray Industries, Inc.
- Bicontinuous separating layers for solid-state batteries and methods of forming the same22 Sep 2026US 12,744,282 B2GM Global Technology Operations LLC
- Nonaqueous electrolyte secondary battery separator, nonaqueous electrolyte secondary battery member, and nonaqueous electrolyte secondary battery8 Sep 2026US 12,731,867 B2Sslm Co., Ltd.
- Electrochemical device and electronic device containing same4 Aug 2026US 12,700,643 B2Ningde Amperex Technology Limited
- Copolymer for separator, and secondary battery comprising same21 Jul 2026US 12,689,093 B2Hansol Chemical Co., Ltd.
- Electrochemical cells with ionic sequestration provided by porous separators1 Oct 2026US 2026/0302323 A1Sepion Technologies, Inc.
- High thermal-stability separator and method for manufacturing thereof17 Sep 2026US 2026/0280045 A1BenQ Materials Corporation
- Porous structure17 Sep 2026US 2026/0280054 A1Resonac Corporation
- Secondary battery and electric apparatus10 Sep 2026US 2026/0269425 A1Contemporary Amperex Technology Co., Limited
- Composite separator and lithium battery27 Aug 2026US 2026/0254057 A1Eve Energy Co., Ltd.
Most cited
By later US patents
- Articles having a polymeric shell and method for preparing same111US 5,443,727 AMinnesota Mining and Manufacturing Company · 1995
- Electrochemical device using multicomponent composite membrane film103US 7,014,948 B2LG Chem.Ltd. · 2006
- Batteries including improved fine fiber separators85US 7,112,389 B1E. I. Du Pont de Nemours and Company · 2006
- Battery separator79US 5,336,573 AW. R. Grace & Co.-Conn. · 1994
- Hydrophilic polymer treatment of an activated polymeric material and use thereof72US 6,830,782 B22004