F17C 2227/044
By purging
Official title: by purging
F17C2227/044 (By purging) appears on 254 US grants and 193 published applications in this corpus.
Search patents in F17C- Granted patents
- 254
- Published applications
- 193
- Assignees
- 159
- Inventors
- 533
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 10 | 0 |
| 2000 | 14 | 0 |
| 2001 | 16 | 3 |
| 2002 | 14 | 9 |
| 2003 | 12 | 13 |
| 2004 | 7 | 5 |
| 2005 | 8 | 10 |
| 2006 | 6 | 11 |
| 2007 | 4 | 9 |
| 2008 | 10 | 6 |
| 2009 | 3 | 3 |
| 2010 | 8 | 6 |
| 2011 | 0 | 5 |
| 2012 | 3 | 5 |
| 2013 | 3 | 4 |
| 2014 | 2 | 8 |
| 2015 | 2 | 7 |
| 2016 | 5 | 3 |
| 2017 | 5 | 5 |
| 2018 | 2 | 11 |
| 2019 | 3 | 8 |
| 2020 | 13 | 13 |
| 2021 | 7 | 9 |
| 2022 | 10 | 8 |
| 2023 | 10 | 10 |
| 2024 | 14 | 8 |
| 2025 | 2 | 9 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Equipment maintenance method and liquefied hydrogen system28 Apr 2026US 12,613,006 B2Kawasaki Jukogyo Kabushiki Kaisha
- Method of operating a cold cryogenic liquid supply chain22 Jul 2025US 12,366,330 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Systems, methods, and apparatus for refueling hydrogen aircraft15 Jul 2025US 12,359,773 B2General Electric Company
- Method for transferring cryogenic fluid using a device for transferring cryogenic fluid24 Dec 2024US 12,173,854 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Bayonet for LH2 offloading10 Dec 2024US 12,163,611 B2FirstElement Fuel, Inc.
- Method for Removing Hydrogen, for Completely Emptying a Liquid-Hydrogen Tank, and Use of Same17 Sep 2026US 2026/0276150 A1Daimler Truck AG
- Hydrogen gas transport device and purging method for compressor30 Jul 2026US 2026/0218857 A1Kawasaki Jukogyo Kabushiki Kaisha
- Cryogenic liquid storage system30 Apr 2026US 2026/0117928 A1Airbus Operations GmbH
- Hydrogen supply device comprising items of equipment distributed in containers which are connected by at least one connecting section so as to form a compact assembly16 Apr 2026US 2026/0103290 A1Airbus Operations GmbH
- Device and method for transferring cryogenic fluid5 Mar 2026US 2026/0063246 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Integrated gas panel118US 5,605,179 AInsync Systems, Inc. · 1997
- Transportable hydrogen refueling station106US 6,755,225 B1Quantum Fuel Systems Technologies Worldwide, Inc. · 2004
- Modular bottle-mounted gas management system89US 5,440,477 ACreative Pathways, Inc. · 1995
- Method and apparatus for dispensing natural gas86US 5,259,424 ADvco · 1993
- Bulk gas sorption and apparatus, gas containment/treatment system comprising same, and sorbent composition therefor81US 5,151,395 ANovapure Corporation · 1992