H01M 4/8636
With a gradient in another property than porosity
Official title: {with a gradient in another property than porosity (H01M4/861 takes precedence)}
H01M4/8636 (With a gradient in another property than porosity) appears on 205 US grants and 325 published applications in this corpus.
Search patents in H01M- Granted patents
- 205
- Published applications
- 325
- Assignees
- 149
- Inventors
- 785
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 0 | 6 |
| 2004 | 6 | 13 |
| 2005 | 2 | 24 |
| 2006 | 7 | 18 |
| 2007 | 4 | 19 |
| 2008 | 4 | 22 |
| 2009 | 15 | 26 |
| 2010 | 14 | 27 |
| 2011 | 13 | 16 |
| 2012 | 13 | 12 |
| 2013 | 9 | 5 |
| 2014 | 6 | 16 |
| 2015 | 8 | 7 |
| 2016 | 7 | 13 |
| 2017 | 10 | 9 |
| 2018 | 9 | 16 |
| 2019 | 8 | 14 |
| 2020 | 13 | 12 |
| 2021 | 13 | 11 |
| 2022 | 9 | 9 |
| 2023 | 6 | 10 |
| 2024 | 7 | 5 |
| 2025 | 6 | 7 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrogen pumping proton exchange membrane electrochemical cell with carbon monoxide tolerant anode and method of making thereof14 Apr 2026US 12,603,315 B2Bloom Energy Corporation
- Cell stack, method of producing a cell stack and fuel cell or electrolysis cell including a cell stack14 Apr 2026US 12,603,316 B2Greenerity GmbH
- System and method for continuous fabrication of graded structured units using additive manufacturing17 Mar 2026US 12,580,215 B2Advanced Manufacturing LLC
- Cathode catalyst layer structure for membrane electrode of fuel cell and method for preparing same20 Jan 2026US 12,531,251 B2Robert Bosch GmbH
- Electrode for membrane-electrode assembly and method of manufacturing same30 Dec 2025US 12,512,481 B2Hyundai Motor Company
- Methods and compositions for nanocomposites on electrode surfaces6 Aug 2026US 2026/0229551 A1West Virginia Board of Governors on Behalf of West Virginia University
- Electrode for fuel cell, membrane-electrode assembly, and manufacturing method therefor30 Jul 2026US 2026/0221466 A1Kolon Industries, Inc.
- Fuel cell28 May 2026US 2026/0149005 A1Subaru Corporation
- Electrochemical cell, electrochemical cell device, module, and module housing device14 May 2026US 2026/0135119 A1KYOCERA Corporation
- Solid oxide fuel cell having laminated anode and electrolyte layers and method of making thereof2 Oct 2025US 2025/0309305 A1Bloom Energy Corporation
Most cited
By later US patents
- Energy devices and methods for the fabrication of energy devices84US 6,753,108 B1Superior MicroPowders LLC · 2004
- Active layer for membrane electrode assembly48US 5,882,810 AThe Dow ChemicalCompany · 1999
- Solid oxide fuel cell and porous electrode for use in the same40US 5,114,803 ANGK Insulators, Ltd. · 1992
- Hybrid deposition of thin film solid oxide fuel cells and electrolyzers40US 5,753,385 AThe Regents of the University of California · 1998
- Catalyst layers to enhance uniformity of current density in membrane electrode assemblies39US 7,790,304 B23M Innovative Properties Company · 2010