F25J 3/0242
Separation of cnhm with 3 carbon atoms or more
Official title: {separation of CnHm with 3 carbon atoms or more}
F25J3/0242 (Separation of cnhm with 3 carbon atoms or more) appears on 453 US grants and 371 published applications in this corpus.
Search patents in F25J- Granted patents
- 453
- Published applications
- 371
- Assignees
- 170
- Inventors
- 613
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 18 | 0 |
| 1988 | 9 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 10 | 0 |
| 1995 | 7 | 0 |
| 1996 | 9 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 10 | 2 |
| 2002 | 6 | 7 |
| 2003 | 13 | 6 |
| 2004 | 5 | 10 |
| 2005 | 8 | 10 |
| 2006 | 7 | 23 |
| 2007 | 16 | 10 |
| 2008 | 7 | 18 |
| 2009 | 7 | 18 |
| 2010 | 3 | 18 |
| 2011 | 5 | 17 |
| 2012 | 5 | 13 |
| 2013 | 8 | 14 |
| 2014 | 7 | 14 |
| 2015 | 16 | 14 |
| 2016 | 13 | 10 |
| 2017 | 20 | 18 |
| 2018 | 11 | 22 |
| 2019 | 19 | 43 |
| 2020 | 25 | 26 |
| 2021 | 18 | 17 |
| 2022 | 22 | 9 |
| 2023 | 12 | 11 |
| 2024 | 9 | 12 |
| 2025 | 10 | 5 |
| 2026 | 8 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for producing a liquefied natural gas product18 Aug 2026US 12,710,225 B2Linde Aktiengesellschaft
- Distillation column minimum flow arrangement14 Jul 2026US 12,678,708 B2Saudi Arabian Oil Company
- Process for separating hydrogen from an olefin hydrocarbon effluent vapor stream2 Jun 2026US 12,643,067 B2Enflex, Inc.
- Dehydrogenation and pyrolysis product recovery with a common refrigerant2 Jun 2026US 12,643,843 B2Uop LLC
- Standalone high-pressure heavies removal unit for LNG processing26 May 2026US 12,638,236 B2ConocoPhillips Company
- Configurations and methods for ngl recovery for high nitrogen content feed gases13 Aug 2026US 2026/0235354 A1Fluor Technologies Corporation
- Utilizing liquefied natural gas for cryogenic cooling of cracked gas from a light hydrocarbon catalytic cracker5 Mar 2026US 2026/0062623 A1Chevron U.S.A.Inc.
- Dynamic control of reflux rate in hydrocarbon distillation12 Feb 2026US 2026/0043606 A1Saudi Arabian Oil Company
- Multiple reflux stream hydrocarbon recovery process1 Jan 2026US 2026/0002729 A1Lummus Technology Inc.
- Phase implementation of natural gas liquid recovery plants21 Aug 2025US 2025/0264273 A1Fluor Technologies Corporation
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
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Hydrocarbon gas processing134US 5,568,737 AElcor Corporation · 1996
- Hydrocarbon gas processing115US 4,854,955 AElcor Corporation · 1989
- Separating hydrocarbon gases114US 4,617,039 APro-Quip Corporation · 1986