H01M 50/426
Fluorocarbon polymers
H01M50/426 (Fluorocarbon polymers) appears on 795 US grants and 1,378 published applications in this corpus.
Search patents in H01M- Granted patents
- 795
- Published applications
- 1,378
- Assignees
- 401
- Inventors
- 2,680
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 1 |
| 2002 | 9 | 18 |
| 2003 | 8 | 31 |
| 2004 | 11 | 16 |
| 2005 | 7 | 13 |
| 2006 | 14 | 9 |
| 2007 | 5 | 7 |
| 2008 | 3 | 6 |
| 2009 | 4 | 31 |
| 2010 | 10 | 12 |
| 2011 | 6 | 42 |
| 2012 | 12 | 35 |
| 2013 | 12 | 45 |
| 2014 | 29 | 68 |
| 2015 | 29 | 54 |
| 2016 | 42 | 70 |
| 2017 | 43 | 75 |
| 2018 | 54 | 52 |
| 2019 | 57 | 91 |
| 2020 | 55 | 70 |
| 2021 | 50 | 74 |
| 2022 | 45 | 82 |
| 2023 | 44 | 106 |
| 2024 | 57 | 119 |
| 2025 | 60 | 145 |
| 2026 | 35 | 106 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for a self-protecting separator for a battery6 Oct 2026US 12,756,070 B2GM Global Technology Operations LLC
- Lithium battery and manufacturing method therefor8 Sep 2026US 12,731,864 B2Samsung SDI.Co., Ltd.
- Dimensionally-stable microporous webs18 Aug 2026US 12,712,239 B2Amtek Research International LLC
- Electrochemical device and electronic device containing same4 Aug 2026US 12,700,643 B2Ningde Amperex Technology Limited
- Battery diaphragm and lithium battery prepared therefrom21 Jul 2026US 12,689,094 B2Shanghai Energy New Materials Technology Co., Ltd.
- Process for the production of polyvinylidene fluoride copolymers1 Oct 2026US 2026/0297230 A1Arkema Inc.
- Electrochemical cells with ionic sequestration provided by porous separators1 Oct 2026US 2026/0302323 A1Sepion Technologies, Inc.
- Secondary battery and electronic device1 Oct 2026US 2026/0302531 A1Ningde Amperex Technology Limited
- Method for Manufacturing Electrode-Integrated Separator for Lithium Ion Secondary Battery24 Sep 2026US 2026/0291004 A1LG Chem.Ltd.
- Secondary battery and electric apparatus17 Sep 2026US 2026/0279893 A1Ningde Amperex Technology Limited
Most cited
By later US patents
- Rechargeable lithium intercalation battery with hybrid polymeric electrolyte231US 5,296,318 ABell Communications Research, Inc. · 1994
- Separator for a high energy rechargeable lithium battery178US 6,432,586 B1Celgard, LLC · 2002
- Method of making an electrolyte activatable lithium-ion rechargeable battery cell164US 5,456,000 ABell Communications Research, Inc. · 1995
- Electrolyte activatable lithium-ion rechargeable battery cell158US 5,460,904 ABell Communications Research, Inc. · 1995
- Polymeric electrolytic cell separator membrane154US 5,418,091 ABell Communications Research, Inc. · 1995