F25J 2235/04
Processes or apparatus involving steps for increasing the pressure or for conveying
Official title: using a pressure accumulator
F25J2235/04 (Processes or apparatus involving steps for increasing the pressure or for conveying) appears on 22 US grants and 21 published applications in this corpus.
Search patents in F25J- Granted patents
- 22
- Published applications
- 21
- Assignees
- 14
- Inventors
- 46
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 0 | 1 |
| 2017 | 2 | 0 |
| 2018 | 2 | 3 |
| 2019 | 0 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 2 | 3 |
| 2024 | 2 | 2 |
| 2025 | 1 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air separation unit and air separation method25 Aug 2026US 12,716,651 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- 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
- Process for cryogenic fractionation of air, air fractionation plant and integrated system composed of at least two air fractionation plants30 Dec 2025US 12,510,294 B2Linde Aktiengesellschaft
- Electrical power producing device31 Dec 2024US 12,180,885 B2Hyundai Motor Company
- Impurity control for a high pressure CO2 purification and supply system13 Aug 2024US 12,061,046 B2Messer Industries USA, Inc.
- Process and plant for providing a nitrogen product, an oxygen product and a hydrogen product28 Aug 2025US 2025/0271208 A1Linde Aktiengesellschaft
- Method for pressurizing a liquid exiting a phase separator12 Jun 2025US 2025/0189219 A1Air Liquide Large Industries U.S. LP
- Installation and method for liquefying a cryogenic fluid2 Jan 2025US 2025/0003676 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Electrical power producing device29 Feb 2024US 2024/0068400 A1Hyundai Motor Company
- Air separation unit and air separation method15 Feb 2024US 2024/0053097 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- High pressure CO2 purification and supply system45US 7,055,333 B2The BOC Group, Inc. · 2006
- Cryogenic air separation system with dual product side condenser18US 5,148,680 AUnion Carbide Industrial Gases Technology Corporation · 1992
- Method and apparatus for producing a pressurized high purity liquid carbon dioxide stream15US 6,327,872 B1The BOC Group, Inc. · 2001
- Process for producing various gases for semiconductor production factories12US 5,656,557 ANippon Sanso Corporation · 1997
- Cryogenic air separation system for producing elevated pressure product gas10US 5,114,452 AUnion Carbide Industrial Gases Technology Corporation · 1992