C01B 2210/0053
Hydrogen
C01B2210/0053 (Hydrogen) appears on 101 US grants and 105 published applications in this corpus.
Search patents in C01B- Granted patents
- 101
- Published applications
- 105
- Assignees
- 71
- Inventors
- 277
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 3 | 3 |
| 2004 | 4 | 5 |
| 2005 | 1 | 3 |
| 2006 | 3 | 3 |
| 2007 | 0 | 10 |
| 2008 | 1 | 5 |
| 2009 | 5 | 11 |
| 2010 | 6 | 5 |
| 2011 | 6 | 8 |
| 2012 | 6 | 5 |
| 2013 | 5 | 7 |
| 2014 | 8 | 3 |
| 2015 | 2 | 2 |
| 2016 | 1 | 3 |
| 2017 | 1 | 2 |
| 2018 | 2 | 7 |
| 2019 | 3 | 3 |
| 2020 | 0 | 2 |
| 2021 | 3 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 5 |
| 2025 | 3 | 5 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system of thermolysis based hydrogen and oxygen generation21 Jul 2026US 12,686,615 B2Cosmic Energy Power Inc.
- Hydrogen purification by adsorption10 Mar 2026US 12,570,528 B2Air Products and Chemicals, Inc.
- Method for separating gases in an oxy-fuel combustion process by using oxygen-permeable membranes23 Dec 2025US 12,502,639 B2Kerionics, S.L.
- Device and method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed water16 Dec 2025US 12,497,705 B2Hangzhou Oxygen Plant Group Co., Ltd.
- Device and method for recovering by-product oxygen of hydrogen production from electrolyzed water by low-temperature method5 Aug 2025US 12,378,686 B2Hangzhou Oxygen Plant Group Co., Ltd.
- Mixed gas separation device and mixed gas separation method27 Aug 2026US 2026/0250130 A1L'Air Liquide, Société Anonyme pour I'Etude et I'Exploitaion des Procédés Georges Claude
- Process for producing very high purity helium or hydrogen30 Jul 2026US 2026/0217533 A1Air Liquide Advanced Technologies U.S. LLC
- Kiln exhaust gas regeneration apparatus and system, and kiln system16 Jul 2026US 2026/0199824 A1TDK Corporation
- Multi-stage hydrogen/helium separation using hydrogen-selective membranes11 Jun 2026US 2026/0158436 A1Hydrogen Onsite, S.L.
- Systems and methods for production of low carbon intensity hydrogen from geologic sources27 Nov 2025US 2025/0361144 A1Koloma, Inc.
Most cited
By later US patents
- Apparatus for low temperature purification of gases78US 5,202,096 AThe BOC Group, Inc. · 1993
- Methods for purifying inert gas streams74US 4,579,723 AThe BOC Group, Inc. · 1986
- Polymer formulations for gettering hydrogen62US 5,837,158 ASandia Corporation · 1998
- One-step process for purifying an inert gas54US 4,713,224 AThe BOC Group, Inc. · 1987
- Gas purification system with an integrated hydrogen sorption and filter assembly45US 6,890,376 B2SAES Pure Gas, Inc. · 2005