H01M 8/028
Sealing means characterised by their material
H01M8/028 (Sealing means characterised by their material) appears on 812 US grants and 1,288 published applications in this corpus.
Search patents in H01M- Granted patents
- 812
- Published applications
- 1,288
- Assignees
- 406
- Inventors
- 2,492
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 3 |
| 2002 | 8 | 19 |
| 2003 | 12 | 33 |
| 2004 | 10 | 41 |
| 2005 | 10 | 56 |
| 2006 | 26 | 78 |
| 2007 | 25 | 70 |
| 2008 | 19 | 49 |
| 2009 | 29 | 87 |
| 2010 | 44 | 75 |
| 2011 | 38 | 72 |
| 2012 | 60 | 43 |
| 2013 | 49 | 47 |
| 2014 | 51 | 60 |
| 2015 | 45 | 47 |
| 2016 | 34 | 33 |
| 2017 | 36 | 46 |
| 2018 | 37 | 42 |
| 2019 | 42 | 56 |
| 2020 | 47 | 49 |
| 2021 | 35 | 44 |
| 2022 | 42 | 54 |
| 2023 | 36 | 52 |
| 2024 | 18 | 48 |
| 2025 | 21 | 50 |
| 2026 | 21 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hybrid elastomeric material8 Sep 2026US 12,729,305 B2CHT Germany GmbH
- Fuel cell assembly and method for manufacturing the same8 Sep 2026US 12,731,798 B2Sumitomo Riko Company Limited
- Ink composition for screen printing and method for producing printed matter25 Aug 2026US 12,716,006 B2Nichias Corporation
- Separator integrated with gasket for fuel cell and method for manufacturing the same25 Aug 2026US 12,719,065 B2Hyundai Motor Company
- Membrane-electrode unit for an electrochemical cell, and process for manufacturing a membrane-electrode unit4 Aug 2026US 12,700,604 B2Robert Bosch GmbH
- Fuel cell sealing structure24 Sep 2026US 2026/0290856 A1Toyota Jidosha Kabushiki Kaisha
- Fuel cell stack17 Sep 2026US 2026/0279849 A1Honda Motor Co., Ltd.
- Electrochemical cell and separator-equipped electrochemical cell17 Sep 2026US 2026/0279850 A1NGK Corporation
- Hybrid seal for electrochemical cell17 Sep 2026US 2026/0279851 A1GM Global Technology Operations LLC
- Fuel cell including sealing member with acid-modified olefin adhesive layer containing metal deactivator17 Sep 2026US 2026/0279852 A1Toagosei Co., Ltd.
Most cited
By later US patents
- Planar fuel cell116US 6,127,058 AMotorola, Inc. · 2000
- Thermal shock resistant ceramic composites97US 7,488,544 B2Stanton Advanced Ceramics, Inc. · 2009
- Thermal shock resistant ceramic composites95US 7,666,344 B2Stanton Advanced Ceramics, Inc. · 2010
- Glass-ceramic coatings and sealing arrangements and their use in fuel cells73US 6,656,625 B1Alstom UK Limited · 2003
- Membrane electrode assembly for PEM fuel cell70US 6,020,083 AInternational Fuel Cells Corporation · 2000