F25J 1/021
Using a deep flash recycle loop
Official title: {using a deep flash recycle loop}
F25J1/021 (Using a deep flash recycle loop) appears on 76 US grants and 103 published applications in this corpus.
Search patents in F25J- Granted patents
- 76
- Published applications
- 103
- Assignees
- 29
- Inventors
- 174
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 1 |
| 2004 | 4 | 2 |
| 2005 | 1 | 7 |
| 2006 | 1 | 4 |
| 2007 | 5 | 6 |
| 2008 | 3 | 10 |
| 2009 | 2 | 7 |
| 2010 | 0 | 5 |
| 2011 | 2 | 3 |
| 2012 | 0 | 5 |
| 2013 | 4 | 3 |
| 2014 | 1 | 4 |
| 2015 | 1 | 6 |
| 2016 | 4 | 6 |
| 2017 | 8 | 3 |
| 2018 | 5 | 4 |
| 2019 | 1 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 2 | 4 |
| 2023 | 1 | 8 |
| 2024 | 3 | 4 |
| 2025 | 1 | 3 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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By later US patents
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- Natural gas liquefaction with improved nitrogen removal79US 6,631,626 B1ConocoPhillips Company · 2003
- Efficiency improvement of open-cycle cascaded refrigeration process64US 5,669,234 APhillips Petroleum Company · 1997