H01M 50/44
Fibrous material
H01M50/44 (Fibrous material) appears on 1,406 US grants and 1,983 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,406
- Published applications
- 1,983
- Assignees
- 690
- Inventors
- 3,945
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 13 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 14 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 18 | 0 |
| 1994 | 7 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 20 | 0 |
| 1998 | 14 | 0 |
| 1999 | 18 | 0 |
| 2000 | 16 | 0 |
| 2001 | 21 | 12 |
| 2002 | 25 | 31 |
| 2003 | 25 | 51 |
| 2004 | 28 | 23 |
| 2005 | 18 | 32 |
| 2006 | 15 | 32 |
| 2007 | 15 | 33 |
| 2008 | 9 | 23 |
| 2009 | 10 | 30 |
| 2010 | 15 | 33 |
| 2011 | 13 | 59 |
| 2012 | 22 | 75 |
| 2013 | 25 | 97 |
| 2014 | 39 | 103 |
| 2015 | 58 | 131 |
| 2016 | 61 | 117 |
| 2017 | 87 | 125 |
| 2018 | 87 | 132 |
| 2019 | 92 | 151 |
| 2020 | 116 | 136 |
| 2021 | 86 | 109 |
| 2022 | 81 | 86 |
| 2023 | 66 | 95 |
| 2024 | 80 | 112 |
| 2025 | 66 | 92 |
| 2026 | 31 | 63 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fine glass fibers and fiber webs, separators, and pasting papers comprising them29 Sep 2026US 12,749,768 B2Hollingsworth & Vose Company
- Multilayer non-woven mat for lead acid batteries and applications therefor22 Sep 2026US 12,744,285 B2Johns Manville
- Multi-layer battery separator for alkaline battery and method for making22 Sep 2026US 12,744,286 B2SWM Holdings US, LLC
- Battery cell including an inorganic, melt-infiltrated, solid-state electrolyte25 Aug 2026US 12,719,079 B2Sila Nanotechnologies, Inc.
- Laminated oxidation protected separator18 Aug 2026US 12,712,210 B2Daramic, LLC
- Separator with a ceramic-comprising separator layer8 Oct 2026US 2026/0312233 A1Sila Nanotechnologies, Inc.
- Electrochemical cells with ionic sequestration provided by porous separators1 Oct 2026US 2026/0302323 A1Sepion Technologies, Inc.
- Solid electrolyte sheet and all-solid-state battery1 Oct 2026US 2026/0302333 A1Toyota Jidosha Kabushiki Kaisha
- Air secondary battery17 Sep 2026US 2026/0279974 A1Fdk Corporation
- Porous structure17 Sep 2026US 2026/0280054 A1Resonac Corporation
Most cited
By later US patents
- Supercapacitor and a method of manufacturing such a supercapacitor208US 6,697,249 B2FOC Frankenburg Oil Company · 2004
- Non-aqueous secondary battery135US 5,707,756 AFuji Photo Film Co., Ltd. · 1998
- Method of making sheet or shaped cation exchange membrane133US 4,298,697 ADiamond Shamrock Corporation · 1981
- Batteries including improved fine fiber separators85US 7,112,389 B1E. I. Du Pont de Nemours and Company · 2006
- Battery diaphragm78US 6,461,772 B1Sumitomo Electric Industries, Ltd. · 2002