H01M 8/0278
O-rings
Official title: {O-rings}
H01M8/0278 (O-rings) appears on 53 US grants and 112 published applications in this corpus.
Search patents in H01M- Granted patents
- 53
- Published applications
- 112
- Assignees
- 74
- Inventors
- 281
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 0 | 0 |
| 2004 | 0 | 6 |
| 2005 | 0 | 4 |
| 2006 | 0 | 3 |
| 2007 | 1 | 6 |
| 2008 | 0 | 6 |
| 2009 | 2 | 4 |
| 2010 | 4 | 2 |
| 2011 | 2 | 5 |
| 2012 | 4 | 1 |
| 2013 | 2 | 11 |
| 2014 | 2 | 6 |
| 2015 | 3 | 4 |
| 2016 | 1 | 2 |
| 2017 | 3 | 6 |
| 2018 | 3 | 3 |
| 2019 | 6 | 6 |
| 2020 | 5 | 4 |
| 2021 | 0 | 6 |
| 2022 | 6 | 6 |
| 2023 | 3 | 3 |
| 2024 | 2 | 7 |
| 2025 | 2 | 3 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Variable back-up ring and a sealing structure having the same5 Aug 2025US 12,379,029 B2Hyundai Motor Company
- Microbial fuel cell using electron absorber having high reduction potential, and method of generating electric energy using same25 Mar 2025US 12,261,336 B2
- Sealing structure for stack tower and stack tower2 Jul 2024US 12,027,739 B2China Energy Investment Corporation Limited
- Metal-dielectric conduit assemblies and methods of making thereof27 Feb 2024US 11,916,265 B2Bloom Energy Corporation
- Assembly comprising a SOEC/SOFC-type solid oxide stack, a clamping system, and a heat exchange system30 May 2023US 11,664,516 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Fluid connector structure and hydrogen line for fuel cell8 Oct 2026US 2026/0312086 A1Nifco Inc.
- Gasket infused elecrode substrate and methods for forming the same20 Aug 2026US 2026/0245921 A1King Abdullah University of Science and Technology
- Stack structure9 Jul 2026US 2026/0196530 A1Toyota Jidosha Kabushiki Kaisha
- Fuel cell for aircrafts7 May 2026US 2026/0128343 A1Airbus Operations S.L.U.
- Fuel cell stack15 Jan 2026US 2026/0018626 A1Powercell Sweden AB
Most cited
By later US patents
- Polymer fuel cell15US 5,733,678 AFraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. · 1998
- Cell stack for redox flow battery, and redox flow battery15US 7,670,719 B2Sumitomo Electric Industries, Ltd. · 2010
- Lightweight direct methanol fuel cell12US 7,189,468 B2Creare Inc. · 2007
- Gasket with sheet-shaped member and a gasket mainbody mounted to a mounting member6US 7,749,635 B2Nok Corporation · 2010
- Gasket for electrolyte membrane3US 7,799,484 B2Nok Corporation · 2010