H01M 4/88
Processes of manufacture
H01M4/88 (Processes of manufacture) appears on 2,963 US grants and 4,514 published applications in this corpus.
Search patents in H01M- Granted patents
- 2,963
- Published applications
- 4,514
- Assignees
- 1,358
- Inventors
- 8,270
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 10 | 0 |
| 1981 | 8 | 0 |
| 1982 | 9 | 0 |
| 1983 | 14 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 13 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 11 | 0 |
| 1998 | 16 | 0 |
| 1999 | 20 | 0 |
| 2000 | 18 | 0 |
| 2001 | 37 | 14 |
| 2002 | 37 | 84 |
| 2003 | 42 | 118 |
| 2004 | 57 | 160 |
| 2005 | 61 | 167 |
| 2006 | 75 | 186 |
| 2007 | 56 | 185 |
| 2008 | 51 | 180 |
| 2009 | 77 | 214 |
| 2010 | 106 | 220 |
| 2011 | 112 | 193 |
| 2012 | 113 | 169 |
| 2013 | 120 | 182 |
| 2014 | 116 | 187 |
| 2015 | 120 | 186 |
| 2016 | 134 | 183 |
| 2017 | 147 | 181 |
| 2018 | 147 | 214 |
| 2019 | 157 | 166 |
| 2020 | 152 | 218 |
| 2021 | 142 | 212 |
| 2022 | 175 | 221 |
| 2023 | 165 | 194 |
| 2024 | 139 | 206 |
| 2025 | 136 | 169 |
| 2026 | 69 | 105 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01M 4/8825Methods for deposition of the catalytic active composition1,541
- H01M 4/8878Treatment steps after deposition of the catalytic active composition or after shaping1,340
- H01M 4/8803Supports for the deposition of the catalytic active composition1,333
- H01M 4/8817Treatment of supports before application of the catalytic active composition307
- H01M 4/8875Methods for shaping the electrode into free-standing bodies, like sheets, films or237
Recent patents
- Aqueous Zn||NO2 electrochemical cell6 Oct 2026US 12,756,037 B2City University of Hong Kong
- Heteroelement-doped highly graphitic porous carbon body, a catalyst including the same, and a method for producing the same15 Sep 2026US 12,738,508 B2Daegu Gyeongbuk Institute of Science and Technology
- Electrode sheet oven drying apparatus, battery production device, and electrode sheet oven drying method8 Sep 2026US 12,729,909 B2Contemporary Amperex Technology (Hong Kong) Limited
- Ionomer for fuel cell capable of self-assembly and method of preparing the same1 Sep 2026US 12,725,820 B2Hyundai Motor Company
- Noble metal single atom or cluster-porous molybdenum carbide/carbon nanocomposite using dynamic arrangement of noble metal atoms, method for manufacturing same, catalyst for hydrogen evolution reaction or hydrogen oxidation reaction comprising same, and electrode comprising the catalyst25 Aug 2026US 12,719,062 B2Korea Advanced Institute of Science and Technology
- Oxygen evolution reaction catalyst and method for its preparation8 Oct 2026US 2026/0308786 A1Johnson Matthey Public Limited Company
- Method for manufacturing a catalyst layer, and such a layer, as well as a fuel cell module, assembly, power unit, and vehicle incorporating the same8 Oct 2026US 2026/0312079 A1
- Membrane electrode assembly with protected edges8 Oct 2026US 2026/0312106 A1GM Global Technology Operations LLC
- A membrane electrode assembly and a method for the manufacture thereof8 Oct 2026US 2026/0312109 A1
- Rolled material, method, and device1 Oct 2026US 2026/0296820 A1Robert Bosch GmbH
Most cited
By later US patents
- Materials and products using nanostructured non-stoichiometric substances226US 6,344,271 B12002
- Nanotechnology for biomedical products224US 6,572,672 B2NanoProducts Corporation · 2003
- Membrane electrode assembly181US 5,879,828 AMinnesota Mining and Manufacturing Company · 1999
- Aqueous liquid feed organic fuel cell using solid polymer electrolyte membrane173US 5,599,638 ACalifornia Institute of Technology · 1997
- Nanowire-based membrane electrode assemblies for fuel cells164US 7,179,561 B2Nanosys, Inc. · 2007