H01M 4/923
Compounds thereof with non-metallic elements
Official title: {Compounds thereof with non-metallic elements}
H01M4/923 (Compounds thereof with non-metallic elements) appears on 154 US grants and 249 published applications in this corpus.
Search patents in H01M- Granted patents
- 154
- Published applications
- 249
- Assignees
- 154
- Inventors
- 638
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 5 |
| 2003 | 0 | 7 |
| 2004 | 2 | 7 |
| 2005 | 2 | 6 |
| 2006 | 3 | 10 |
| 2007 | 7 | 20 |
| 2008 | 3 | 22 |
| 2009 | 8 | 13 |
| 2010 | 5 | 10 |
| 2011 | 9 | 12 |
| 2012 | 6 | 9 |
| 2013 | 10 | 11 |
| 2014 | 9 | 9 |
| 2015 | 7 | 10 |
| 2016 | 9 | 17 |
| 2017 | 9 | 3 |
| 2018 | 7 | 6 |
| 2019 | 4 | 10 |
| 2020 | 7 | 10 |
| 2021 | 11 | 14 |
| 2022 | 8 | 12 |
| 2023 | 7 | 9 |
| 2024 | 4 | 4 |
| 2025 | 8 | 8 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Carbon-supported platinum group metal catalyst, preparation method therefor and use thereof16 Jun 2026US 12,654,153 B2China Petroleum & Chemical Corporation
- Catalyst5 May 2026US 12,620,601 B23M Innovative Properties Company
- Oxygen evolution catalyst, production and use of same, membrane electrode arrangement and fuel cell or electrolytic cell21 Apr 2026US 12,609,326 B2Greenerity GmbH
- Highly active and durable non-noble metal-sulphide based HER catalyst and the preparation thereof21 Oct 2025US 12,448,694 B2Council of Scientific and Industrial Research
- Electrode catalyst, composition for forming gas diffusion electrode, gas diffusion electrode, membrane electrode assembly, and fuel cell stack29 Jul 2025US 12,374,700 B2N. E. Chemcat Corporation
- Membrane electrode assembly and method for producing same, fuel cell, and electrolysis cell17 Sep 2026US 2026/0279865 A1Greenerity GmbH
- Catalysts including boronic, metal hydroxide, or metal oxide active-site groups30 Jul 2026US 2026/0216715 A11s1 Energy, Inc.
- Catalyst for electrochemical cell and membrane-electrode assembly18 Jun 2026US 2026/0171429 A1Samsung Electro-Mechanics Co., Ltd.
- Carbon nitride coated nitrogen doped ptni oxygen reduction reaction catalyst for proton exchange membrane fuel cells21 May 2026US 2026/0142197 A1Brookhaven Science Associates, LLC
- Electrode, membrane electrode assembly, electrochemcial cell, stack, and electrolyzer5 Mar 2026US 2026/0062821 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Direct liquid-feed fuel cell with membrane electrolyte and manufacturing thereof110US 5,945,231 ACalifornia Institute of Technology · 1999
- Electrocatalyst powders, methods for producing powders and devices fabricated from same54US 6,967,183 B2Cabot Corporation · 2005
- Aerogel and metallic compositions49US 7,378,450 B2University of Connecticut · 2008
- Catalyst44US 5,939,220 AJohnson Matthey Public Limited Company · 1999
- Fuel cell, components and systems42US 7,488,547 B12009