F25J 3/0645
Separation of cnhm with 3 carbon atoms or more
Official title: {separation of CnHm with 3 carbon atoms or more}
F25J3/0645 (Separation of cnhm with 3 carbon atoms or more) appears on 40 US grants and 38 published applications in this corpus.
Search patents in F25J- Granted patents
- 40
- Published applications
- 38
- Assignees
- 30
- Inventors
- 85
- Latest grant
- 18 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 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 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 7 |
| 2019 | 2 | 3 |
| 2020 | 4 | 4 |
| 2021 | 2 | 6 |
| 2022 | 3 | 3 |
| 2023 | 4 | 5 |
| 2024 | 4 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Fuel gas conditioning units for natural gas systems18 Feb 2025US 12,228,337 B1EOG Resources, Inc.
- Process for separating hydrogen from an olefin hydrocarbon effluent vapor stream4 Feb 2025US 12,215,923 B2Enflex, Inc.
- Process for separating hydrogen from an olefin hydrocarbon effluent vapor stream5 Nov 2024US 12,135,166 B2Enflex, Inc.
- Process for separating hydrogen from an olefin hydrocarbon effluent vapor stream8 Oct 2024US 12,111,104 B2Enflex, Inc.
- Dehydrogenation separation unit with mixed refrigerant cooling17 Sep 2024US 12,092,392 B2Chart Energy & Chemicals, Inc.
- Methods of butane delivery13 Mar 2025US 2025/0083088 A1Texon Midstream, LLC
- Dehydration Separation Unit with Mixed Refrigerant Cooling12 Dec 2024US 2024/0410647 A1Chart Energy & Chemicals, Inc.
- Process for Separating Hydrogen from an Olefin Hydrocarbon Effluent Vapor Stream12 Oct 2023US 2023/0324115 A1Enflex, Inc.
- Process for Separating Hydrogen from an Olefin Hydrocarbon Effluent Vapor Stream28 Sep 2023US 2023/0304732 A1Enflex, Inc.
- Method and system for separating a feed flow24 Aug 2023US 2023/0266060 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Membrane-augmented power generation94US 6,035,641 AMembane Technology and Research, Inc. · 2000
- Methane/nitrogen separation process40US 5,669,958 AMembrane Technology and Research, Inc. · 1997
- Cryogenic recovery of liquids from refinery off-gases28US 4,356,014 APetrochem Consultants, Inc. · 1982
- Cryogenic recovery of liquid hydrocarbons from hydrogen-rich26US 4,272,270 APetrochem Consultants, Inc. · 1981
- Cryogenic separation process for the recovery of components from the products of a dehydrogenation reactor23US 6,333,445 B1Chart Inc. · 2001