F25J 2230/08
Cold compressor, i.e. suction of the gas at cryogenic temperature and generally
Official title: Cold compressor, i.e. suction of the gas at cryogenic temperature and generally without afterstage-cooler
F25J2230/08 (Cold compressor, i.e. suction of the gas at cryogenic temperature and generally) appears on 252 US grants and 328 published applications in this corpus.
Search patents in F25J- Granted patents
- 252
- Published applications
- 328
- Assignees
- 142
- Inventors
- 543
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 4 |
| 2002 | 8 | 1 |
| 2003 | 2 | 4 |
| 2004 | 4 | 4 |
| 2005 | 3 | 8 |
| 2006 | 5 | 10 |
| 2007 | 9 | 11 |
| 2008 | 1 | 18 |
| 2009 | 9 | 15 |
| 2010 | 2 | 20 |
| 2011 | 1 | 13 |
| 2012 | 7 | 8 |
| 2013 | 7 | 14 |
| 2014 | 7 | 11 |
| 2015 | 7 | 16 |
| 2016 | 9 | 16 |
| 2017 | 9 | 17 |
| 2018 | 14 | 24 |
| 2019 | 11 | 14 |
| 2020 | 17 | 20 |
| 2021 | 11 | 19 |
| 2022 | 15 | 16 |
| 2023 | 8 | 14 |
| 2024 | 14 | 12 |
| 2025 | 14 | 9 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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- Method for supplying gaseous nitrogen and liquefying nitrogen8 Oct 2026US 2026/0309410 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic process for helium recovery from low helium-containing gas stream24 Sep 2026US 2026/0287252 A1Council of Scientific and Industrial Research
- Cascade refrigeration natural gas liquefaction system and process27 Aug 2026US 2026/0251385 A1Hangzhou Zhongtai Cryogenic Technology Corporation
- System and method for the production and supply of a densified liquid oxygen product20 Aug 2026US 2026/0243506 A1
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Most cited
By later US patents
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Hydrocarbon gas processing134US 5,568,737 AElcor Corporation · 1996
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002
- Multi-component refrigeration process for liquefaction of natural gas100US 5,950,453 AExxon Production Research Company · 1999
- Hydrocarbon gas processing99US 4,889,545 AElcor Corporation · 1989