H01M 4/8817
Treatment of supports before application of the catalytic active composition
Official title: {Treatment of supports before application of the catalytic active composition (coated porous composites H01M8/0245)}
H01M4/8817 (Treatment of supports before application of the catalytic active composition) appears on 307 US grants and 401 published applications in this corpus.
Search patents in H01M- Granted patents
- 307
- Published applications
- 401
- Assignees
- 244
- Inventors
- 1,183
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 11 | 3 |
| 2002 | 6 | 12 |
| 2003 | 5 | 11 |
| 2004 | 7 | 19 |
| 2005 | 4 | 25 |
| 2006 | 8 | 16 |
| 2007 | 5 | 22 |
| 2008 | 4 | 16 |
| 2009 | 11 | 26 |
| 2010 | 11 | 18 |
| 2011 | 12 | 9 |
| 2012 | 10 | 20 |
| 2013 | 11 | 12 |
| 2014 | 6 | 9 |
| 2015 | 17 | 26 |
| 2016 | 13 | 20 |
| 2017 | 15 | 19 |
| 2018 | 16 | 15 |
| 2019 | 13 | 9 |
| 2020 | 8 | 16 |
| 2021 | 10 | 18 |
| 2022 | 16 | 12 |
| 2023 | 15 | 15 |
| 2024 | 16 | 15 |
| 2025 | 6 | 14 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mesoporous support for a catalyst for a fuel cell and method of producing thereof9 Jun 2026US 12,651,754 B2Hyundai Motor Company
- Mesoporous carbon and manufacturing method of the same, and polymer electrolyte fuel cell19 May 2026US 12,630,426 B2Toyota Jidosha Kabushiki Kaisha
- Composition of and method for optimizing a catalytic reaction28 Apr 2026US 12,614,735 B2University of Central Florida Research Foundation, Inc.
- Method of forming catalyst layer21 Apr 2026US 12,605,701 B2Kabushiki Kaisha Toshiba
- Carbon-supported platinum group metal catalyst, preparation method therefor and application thereof21 Apr 2026US 12,609,327 B2China Petroleum & Chemical Corporation
- Methods for manufacturing electrodes30 Jul 2026US 2026/0221468 A1Toyota Jidosha Kabushiki Kaisha
- Method for preparing fuel cell catalyst comprising porous carrier having adjusted physical properties, fuel cell catalyst, and membrane-electrode assembly30 Jul 2026US 2026/0221469 A1Kolon Industries, Inc.
- Method of manufacturing carbon support with improved porosity and surface hydrophobicity30 Apr 2026US 2026/0121079 A1Hyundai Motor Company
- Graphene-based precursor structures26 Feb 2026US 2026/0058167 A1Robert Bosch GmbH
- Substrates, oxygen electrodes and electrochemical devices20 Nov 2025US 2025/0357497 A1Hydrolite Ltd
Most cited
By later US patents
- Membrane electrode assembly181US 5,879,828 AMinnesota Mining and Manufacturing Company · 1999
- Direct methanol feed fuel cell and system113US 5,773,162 ACalifornia Institute of Technology · 1998
- Fuel cell manufacturing method and fuel cell95US 7,611,795 B2Toyota Jidosha Kabushiki Kaisha · 2009
- Ion exchange and electrode assembly for an electrochemical cell86US 6,054,230 AJapan Gore-Tex, Inc. · 2000
- Gas diffusion electrode with catalyst for an electrochemical cell with solid electrolyte and method for making such an electrode73US 5,561,000 AVlaamse Instelling Voor Technologisch Onderzoek · 1996