F25J 3/0233
Separation of cnhm with 1 carbon atom or more
Official title: {separation of CnHm with 1 carbon atom or more}
F25J3/0233 (Separation of cnhm with 1 carbon atom or more) appears on 1,029 US grants and 962 published applications in this corpus.
Search patents in F25J- Granted patents
- 1,029
- Published applications
- 962
- Assignees
- 278
- Inventors
- 1,339
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 9 | 0 |
| 1978 | 11 | 0 |
| 1979 | 14 | 0 |
| 1980 | 10 | 0 |
| 1981 | 12 | 0 |
| 1982 | 13 | 0 |
| 1983 | 5 | 0 |
| 1984 | 23 | 0 |
| 1985 | 24 | 0 |
| 1986 | 17 | 0 |
| 1987 | 29 | 0 |
| 1988 | 24 | 0 |
| 1989 | 13 | 0 |
| 1990 | 12 | 0 |
| 1991 | 9 | 0 |
| 1992 | 9 | 0 |
| 1993 | 5 | 0 |
| 1994 | 15 | 0 |
| 1995 | 14 | 0 |
| 1996 | 18 | 0 |
| 1997 | 22 | 0 |
| 1998 | 16 | 0 |
| 1999 | 22 | 0 |
| 2000 | 19 | 0 |
| 2001 | 23 | 2 |
| 2002 | 16 | 17 |
| 2003 | 22 | 16 |
| 2004 | 12 | 25 |
| 2005 | 14 | 29 |
| 2006 | 18 | 31 |
| 2007 | 24 | 24 |
| 2008 | 16 | 45 |
| 2009 | 18 | 43 |
| 2010 | 11 | 57 |
| 2011 | 9 | 45 |
| 2012 | 14 | 46 |
| 2013 | 25 | 34 |
| 2014 | 20 | 36 |
| 2015 | 29 | 56 |
| 2016 | 28 | 44 |
| 2017 | 45 | 62 |
| 2018 | 51 | 55 |
| 2019 | 54 | 63 |
| 2020 | 40 | 50 |
| 2021 | 44 | 55 |
| 2022 | 38 | 38 |
| 2023 | 28 | 25 |
| 2024 | 28 | 24 |
| 2025 | 16 | 20 |
| 2026 | 14 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Low pressure process for C.sub.3.sup.+ liquids recovery from process product gas213US 4,734,115 AAir Products and Chemicals, Inc. · 1988
- Carbon dioxide recovery156US 4,762,543 AAmoco Corporation · 1988
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Hydrocarbon gas processing136US 4,140,504 AThe Ortloff Corporation · 1979
- Hydrocarbon gas processing134US 5,568,737 AElcor Corporation · 1996