F25J 2235/02
Processes or apparatus involving steps for increasing the pressure or for conveying
Official title: using a pump in general or hydrostatic pressure increase
F25J2235/02 (Processes or apparatus involving steps for increasing the pressure or for conveying) appears on 77 US grants and 60 published applications in this corpus.
Search patents in F25J- Granted patents
- 77
- Published applications
- 60
- Assignees
- 37
- Inventors
- 152
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 9 | 1 |
| 2002 | 4 | 1 |
| 2003 | 4 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 4 |
| 2010 | 1 | 1 |
| 2011 | 2 | 4 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 6 |
| 2016 | 1 | 8 |
| 2017 | 4 | 4 |
| 2018 | 3 | 5 |
| 2019 | 5 | 3 |
| 2020 | 6 | 0 |
| 2021 | 2 | 1 |
| 2022 | 1 | 3 |
| 2023 | 2 | 1 |
| 2024 | 1 | 3 |
| 2025 | 3 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- High-grade heat-of-compression storage system, and methods of use2 Dec 2025US 12,486,833 B2Highview Enterprises Limited
- Method and plant for the production of ammonia with renewable energy22 Jul 2025US 12,365,595 B2Stamicarbon B. V.
- Method and apparatus for producing high-purity nitrogen and low-purity oxygen21 May 2024US 11,988,446 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Turbomachine27 Aug 2026US 2026/0251078 A1Kawasaki Jukogyo Kabushiki Kaisha
- High-grade heat-of-compression storage system, and methods of use11 Dec 2025US 2025/0376974 A1Highview Enterprises Limited
- Apparatus and method for compressing and liquefying gas28 Aug 2025US 2025/0271207 A1
- Method and plant for the production of ammonia with renewable energy2 Jan 2025US 2025/0002360 A1Stamicarbon B. V.
- Liquefied gas supply system and air separation unit comprising same14 Nov 2024US 2024/0377130 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Cryogenic air separation with cold argon recycle38US 4,533,375 A1985
- Cold heat reused air liquefaction/vaporization and storage gas turbine electric power system28US 6,920,759 B2Hitachi, Ltd. · 2005
- Process and apparatus for the production of carbon monoxide and hydrogen27US 5,295,356 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1994
- Process components, containers, and pipes suitable for containing and transporting cryogenic temperature fluids27US 6,212,891 B1ExxonMobil Upstream Research Company · 2001
- High pressure oxygen pumped LOX rectifier24US 4,604,116 A1986