F04B 2015/081
Liquefied gases
Official title: {Liquefied gases}
F04B2015/081 (Liquefied gases) appears on 99 US grants and 172 published applications in this corpus.
Search patents in F04B- Granted patents
- 99
- Published applications
- 172
- Assignees
- 81
- Inventors
- 297
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 3 |
| 2014 | 0 | 6 |
| 2015 | 2 | 10 |
| 2016 | 5 | 18 |
| 2017 | 6 | 15 |
| 2018 | 15 | 18 |
| 2019 | 18 | 10 |
| 2020 | 8 | 13 |
| 2021 | 6 | 5 |
| 2022 | 2 | 11 |
| 2023 | 5 | 11 |
| 2024 | 5 | 19 |
| 2025 | 11 | 18 |
| 2026 | 13 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid compression apparatus and filling station8 Sep 2026US 12,729,104 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Pneumatic energy generation device14 Jul 2026US 12,678,936 B2Industry-Academic Cooperation Foundation, Yonsei University
- Fluid sample pump system9 Jun 2026US 12,650,118 B2Mustang Sampling, LLC
- Installation for pumping cryogenic fluid and filling station comprising such an installation2 Jun 2026US 12,644,442 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic pump14 Apr 2026US 12,601,336 B2Chart Energy & Chemicals, Inc.
- Pump for cryogenic liquid1 Oct 2026US 2026/0298224 A1
- Compressor unit6 Aug 2026US 2026/0226891 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Cryogenic pump30 Jul 2026US 2026/0218692 A1Chart Energy & Chemicals, Inc.
- Compressor unit30 Jul 2026US 2026/0218700 A1Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- Gas replacement method for liquefied hydrogen pump23 Jul 2026US 2026/0210497 A1Kawasaki Jukogyo Kabushiki Kaisha
Most cited
By later US patents
- Precision high pressure control assembly54US 5,888,050 ASupercritical Fluid Technologies, Inc. · 1999
- Precision high pressure control assembly53US 5,797,719 ASupercritical Fluid Technologies, Inc. · 1998
- Hydraulic drive system for cryogenic pump34US 9,915,250 B2Caterpillar Inc. · 2018
- Cryogenic fluid pump33US 10,626,856 B2Caterpillar Inc. · 2020
- Method and apparatus for delivering a high pressure gas from a cryogenic storage tank32US 7,293,418 B2Westport Power Inc. · 2007