F25J 3/0238
Separation of cnhm with 2 carbon atoms or more
Official title: {separation of CnHm with 2 carbon atoms or more}
F25J3/0238 (Separation of cnhm with 2 carbon atoms or more) appears on 641 US grants and 599 published applications in this corpus.
Search patents in F25J- Granted patents
- 641
- Published applications
- 599
- Assignees
- 211
- Inventors
- 920
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 11 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 18 | 0 |
| 1985 | 12 | 0 |
| 1986 | 11 | 0 |
| 1987 | 11 | 0 |
| 1988 | 13 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 10 | 0 |
| 1996 | 13 | 0 |
| 1997 | 14 | 0 |
| 1998 | 11 | 0 |
| 1999 | 18 | 0 |
| 2000 | 9 | 0 |
| 2001 | 13 | 3 |
| 2002 | 11 | 10 |
| 2003 | 14 | 9 |
| 2004 | 6 | 16 |
| 2005 | 8 | 20 |
| 2006 | 13 | 23 |
| 2007 | 20 | 17 |
| 2008 | 8 | 25 |
| 2009 | 14 | 29 |
| 2010 | 6 | 37 |
| 2011 | 4 | 27 |
| 2012 | 13 | 20 |
| 2013 | 13 | 20 |
| 2014 | 10 | 25 |
| 2015 | 16 | 29 |
| 2016 | 18 | 27 |
| 2017 | 26 | 39 |
| 2018 | 28 | 39 |
| 2019 | 33 | 55 |
| 2020 | 37 | 34 |
| 2021 | 27 | 27 |
| 2022 | 26 | 15 |
| 2023 | 16 | 17 |
| 2024 | 13 | 17 |
| 2025 | 16 | 9 |
| 2026 | 11 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Hydrocarbon gas processing136US 4,140,504 AThe Ortloff Corporation · 1979
- Hydrocarbon gas processing134US 5,568,737 AElcor Corporation · 1996
- Distillative separations of gas mixtures containing methane, carbon dioxide and other components129US 4,462,814 AKoch Process Systems, Inc. · 1984
- Hydrocarbon gas processing125US 4,278,457 AThe Ortloff Corporation · 1981
- Process for liquefying a natural gas stream containing at least one freezable component123US 5,956,971 AExxon Production Research Company · 1999