F25J 3/064
Separation of cnhm with 2 carbon atoms or more
Official title: {separation of CnHm with 2 carbon atoms or more}
F25J3/064 (Separation of cnhm with 2 carbon atoms or more) appears on 57 US grants and 70 published applications in this corpus.
Search patents in F25J- Granted patents
- 57
- Published applications
- 70
- Assignees
- 54
- Inventors
- 182
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 3 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 3 |
| 2009 | 1 | 5 |
| 2010 | 1 | 6 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 3 | 6 |
| 2014 | 2 | 3 |
| 2015 | 4 | 4 |
| 2016 | 0 | 2 |
| 2017 | 4 | 2 |
| 2018 | 3 | 10 |
| 2019 | 2 | 7 |
| 2020 | 3 | 4 |
| 2021 | 2 | 1 |
| 2022 | 5 | 3 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and apparatus for heavy hydrocarbon removal from lean natural gas before liquefaction10 Mar 2026US 12,571,585 B2Lummus Technology Inc.
- Fuel gas conditioning units for natural gas systems18 Feb 2025US 12,228,337 B1EOG Resources, Inc.
- Method and apparatus for recovering C2—C4 components in methane-containing industrial gas8 Oct 2024US 12,110,460 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Deep-condensation VOCs recovery system using air as refrigerant5 Mar 2024US 11,918,950 B2Nanjing Tech University
- Method to recover LPG and condensates from refineries fuel gas streams1 Nov 2022US 11,486,636 B21304338 Alberta Ltd.
- Methods of butane delivery13 Mar 2025US 2025/0083088 A1Texon Midstream, LLC
- Systems and methods for chilling a natural gas stream10 Oct 2024US 2024/0337440 A1Saudi Arabian Oil Company
- Method for supplementing condenser heat rejection in natural gas processing8 Jun 2023US 2023/0175772 A1Gtuit, LLC
- Method and Apparatus for Recovering C2-C4 Components in Methane-Containing Industrial Gas8 Dec 2022US 2022/0389337 A1Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Process and apparatus for heavy hydrocarbon removal from lean natural gas before liquefaction11 Aug 2022US 2022/0252343 A1Lummus Technology Inc.
Most cited
By later US patents
- Process and apparatus for separating hydrocarbon gas into a residue gas fraction and a product fraction37US 4,609,390 A1986
- Liquid natural gas processing37US 6,604,380 B1Howe-Baker Engineers, Inc. · 2003
- Steam cracker gas separation process33US 5,785,739 AMembrane Technology and Research, Inc. · 1998
- Cryogenic recovery of liquid hydrocarbons from hydrogen-rich26US 4,272,270 APetrochem Consultants, Inc. · 1981
- Liquid natural gas processing22US 6,941,771 B2Howe-Baker Engineers, Inc. · 2005