H01M 8/0252
Tubular
Official title: tubular
H01M8/0252 (Tubular) appears on 130 US grants and 187 published applications in this corpus.
Search patents in H01M- Granted patents
- 130
- Published applications
- 187
- Assignees
- 103
- Inventors
- 394
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 2 |
| 2003 | 3 | 5 |
| 2004 | 0 | 8 |
| 2005 | 3 | 7 |
| 2006 | 3 | 5 |
| 2007 | 2 | 20 |
| 2008 | 2 | 19 |
| 2009 | 6 | 17 |
| 2010 | 11 | 14 |
| 2011 | 11 | 23 |
| 2012 | 15 | 9 |
| 2013 | 9 | 12 |
| 2014 | 8 | 10 |
| 2015 | 11 | 6 |
| 2016 | 7 | 5 |
| 2017 | 4 | 0 |
| 2018 | 4 | 2 |
| 2019 | 1 | 4 |
| 2020 | 2 | 2 |
| 2021 | 5 | 4 |
| 2022 | 2 | 4 |
| 2023 | 2 | 2 |
| 2024 | 0 | 2 |
| 2025 | 1 | 5 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tubular polymer electrolyte membrane fuel cell stack31 Mar 2026US 12,592,397 B2Institute for Basic Science
- Universal tubular solid oxide fuel cell testing device10 Feb 2026US 12,548,865 B2Kent State University
- Separator21 Oct 2025US 12,451,498 B2
- Fuel cell and fuel cell system for an aircraft4 Jul 2023US 11,695,131 B2Airbus Defence and Space GmbH
- Battery cathodes for improved stability21 Feb 2023US 11,588,144 B2The Florida International University Board of Trustees
- Fuel cell stack2 Oct 2025US 2025/0309284 A1Honda Motor Co., Ltd.
- Multi-cell flow battery and fuel cell assemblies28 Aug 2025US 2025/0273700 A1The Curators of the University of Missouri
- System for a vehicle fuel cell with a manually adjustable pressure equalization device and a method of adjusting a coolant pressure29 May 2025US 2025/0174691 A1Volvo Truck Corporation
- Tubular flow battery design having solid anode body10 Apr 2025US 2025/0118774 A1The Sun Company Americas, Inc.
- Pressure-resistant fuel cell13 Mar 2025US 2025/0087713 A1
Most cited
By later US patents
- Microcell electrochemical device assemblies with thermal management subsystem, and method of making and using the same75US 6,444,339 B1Microcell Corporation · 2002
- Electrochemical fuel cell assembly with integral selective oxidizer64US 5,482,680 ABallard Power Systems Inc. · 1996
- Open end protection for solid oxide fuel cells45US 6,221,522 B1Siemens Westinghouse Power Corporation · 2001
- Dense coating formation by reactive deposition36US 7,491,431 B2NanoGram Corporation · 2009
- Modular ceramic electrochemical apparatus and method of manufacture therefor33US 5,985,113 ALitton Systems, Inc. · 1999