F25J 1/001
Hydrogen
Official title: {Hydrogen}
F25J1/001 (Hydrogen) appears on 135 US grants and 213 published applications in this corpus.
Search patents in F25J- Granted patents
- 135
- Published applications
- 213
- Assignees
- 94
- Inventors
- 418
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 1 |
| 2003 | 2 | 0 |
| 2004 | 2 | 2 |
| 2005 | 0 | 5 |
| 2006 | 3 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 3 |
| 2011 | 1 | 3 |
| 2012 | 2 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 3 |
| 2015 | 0 | 2 |
| 2016 | 0 | 3 |
| 2017 | 2 | 11 |
| 2018 | 1 | 8 |
| 2019 | 5 | 10 |
| 2020 | 7 | 8 |
| 2021 | 7 | 11 |
| 2022 | 9 | 19 |
| 2023 | 9 | 27 |
| 2024 | 9 | 42 |
| 2025 | 15 | 21 |
| 2026 | 19 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogen liquefaction system and hydrogen liquefaction method29 Sep 2026US 12,747,911 B2H2CREO Corp.
- System for transforming a product22 Sep 2026US 12,742,521 B2Eifhytec
- Liquefied hydrogen production device22 Sep 2026US 12,742,590 B2Jgc Corporation
- Hydrogen liquefaction system and hydrogen liquefaction method15 Sep 2026US 12,736,279 B2H2CREO Corp.
- Installation and method for liquefying a cryogenic fluid18 Aug 2026US 12,710,227 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- A hazardous fluid isolation system8 Oct 2026US 2026/0309284 A1Fabrum IP Holdings Limited
- Fluid cooling plant and refrigerant module thereof8 Oct 2026US 2026/0309376 A1Nuovo Pignone Tecnologie Srl
- Cycle gas refrigerator and liquefaction facility1 Oct 2026US 2026/0298529 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic cooling system3 Sep 2026US 2026/0257609 A1
- Turbomachine27 Aug 2026US 2026/0251078 A1Kawasaki Jukogyo Kabushiki Kaisha
Most cited
By later US patents
- Active magnetic regenerator method and apparatus96US 5,249,424 AAstronautics Corporation of America · 1993
- Apparatus and methods for cooling and liquefying a fluid using magnetic refrigeration71US 6,467,274 B2University of Victoria Innovations & Development Corp. · 2002
- Gas liquefaction method using natural gas and mixed gas refrigeration39US 6,694,774 B1Praxair Technology, Inc. · 2004
- Process to produce liquid cryogen36US 4,778,497 AUnion Carbide Corporation · 1988
- System for producing cryogenic liquid36US 5,836,173 APraxair Technology, Inc. · 1998