F25J 3/062
Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated
Official title: {Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature}
F25J3/062 (Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated) appears on 79 US grants and 69 published applications in this corpus.
Search patents in F25J- Granted patents
- 79
- Published applications
- 69
- Assignees
- 53
- Inventors
- 169
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 3 |
| 2011 | 0 | 0 |
| 2012 | 2 | 2 |
| 2013 | 1 | 5 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 3 |
| 2017 | 3 | 3 |
| 2018 | 1 | 9 |
| 2019 | 2 | 3 |
| 2020 | 4 | 2 |
| 2021 | 3 | 8 |
| 2022 | 3 | 6 |
| 2023 | 6 | 6 |
| 2024 | 3 | 6 |
| 2025 | 2 | 1 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Latent heat and condensation exchanger11 Aug 2026US 12,704,076 B2Sustainable Energy Solutions, LLC
- Membrane capture of CO2 from refinery emissions7 Apr 2026US 12,594,523 B2Chevron U.S.A.Inc.
- Enhanced hydrogen recovery utilizing gas separation membranes integrated with pressure swing adsorption unit and/or cryogenic separation system31 Mar 2026US 12,589,994 B2Lummus Technology Inc.
- Method and apparatus for separating carbon dioxide from a residual gas in a fluidised bed catalytic cracking plant (FCC)17 Feb 2026US 12,551,840 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for separating hydrogen and nitrogen from cracked ammonia17 Feb 2026US 12,552,668 B2L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Claude Georges
- Membrane capture of co2 from refinery emissions13 Aug 2026US 2026/0233156 A1Chevron U.S.A.Inc.
- Carbon dioxide separation plant using external refrigeration circuit, and method13 Aug 2026US 2026/0235355 A1Nuovo Pignone Tecnologie Srl
- Simultaneous carbon dioxide and hydrogen recovery from the tail gas stream of a sulfur recovery unit19 Feb 2026US 2026/0048362 A1Saudi Arabian Oil Company
- Process and Apparatus for Cracking Ammonia25 Sep 2025US 2025/0296836 A1Air Products and Chemicals, Inc.
- Dehydration Separation Unit with Mixed Refrigerant Cooling12 Dec 2024US 2024/0410647 A1Chart Energy & Chemicals, Inc.
Most cited
By later US patents
- Process for recovering hydrogen from a multi-component gas stream113US 4,654,063 AAir Products and Chemicals, Inc. · 1987
- Autorefrigeration separation of carbon dioxide59US 6,301,927 B12001
- Low energy process for separating carbon dioxide and acid gases from a carbonaceous off-gas45US 4,449,994 AAir Products and Chemicals, Inc. · 1984
- Method and apparatus for separating C.sub.4 hydrocarbons from a gaseous mixture34US 5,329,774 ALiquid Air Engineering Corporation · 1994
- Steam cracker gas separation process33US 5,785,739 AMembrane Technology and Research, Inc. · 1998