H01M 50/454
Comprising a non-fibrous layer and a fibrous layer superimposed on one another
Official title: comprising a non-fibrous layer and a fibrous layer superimposed on one another
H01M50/454 (Comprising a non-fibrous layer and a fibrous layer superimposed on one another) appears on 291 US grants and 429 published applications in this corpus.
Search patents in H01M- Granted patents
- 291
- Published applications
- 429
- Assignees
- 181
- Inventors
- 1,022
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 3 |
| 2003 | 3 | 5 |
| 2004 | 1 | 2 |
| 2005 | 4 | 6 |
| 2006 | 3 | 10 |
| 2007 | 0 | 3 |
| 2008 | 1 | 7 |
| 2009 | 2 | 1 |
| 2010 | 6 | 13 |
| 2011 | 4 | 10 |
| 2012 | 2 | 12 |
| 2013 | 6 | 21 |
| 2014 | 4 | 30 |
| 2015 | 13 | 19 |
| 2016 | 16 | 34 |
| 2017 | 21 | 25 |
| 2018 | 16 | 19 |
| 2019 | 16 | 31 |
| 2020 | 22 | 31 |
| 2021 | 25 | 27 |
| 2022 | 13 | 26 |
| 2023 | 20 | 28 |
| 2024 | 21 | 36 |
| 2025 | 16 | 19 |
| 2026 | 11 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Electrochemical device separator structures with barrier layer on non-swelling membrane205US 7,070,632 B1PolyPlus Battery Company · 2006
- Articles having a polymeric shell and method for preparing same111US 5,443,727 AMinnesota Mining and Manufacturing Company · 1995
- Battery separator79US 5,336,573 AW. R. Grace & Co.-Conn. · 1994
- Separator for nonaqueous electrolyte batteries, nonaqueous electrolyte battery using it, and method for manufacturing separator for nonaqueous electrolyte batteries71US 6,511,774 B1Mitsubishi Paper Mills Limited · 2003
- Graft copolymer membrane and processes of manufacturing and using the same55US 4,374,232 AGelman Sciences, Inc. · 1983