F25J 3/0219
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}
F25J3/0219 (Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated) appears on 371 US grants and 254 published applications in this corpus.
Search patents in F25J- Granted patents
- 371
- Published applications
- 254
- Assignees
- 146
- Inventors
- 624
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 7 | 0 |
| 1987 | 16 | 0 |
| 1988 | 14 | 0 |
| 1989 | 3 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 9 | 0 |
| 1999 | 15 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 3 |
| 2002 | 12 | 11 |
| 2003 | 8 | 4 |
| 2004 | 3 | 6 |
| 2005 | 2 | 6 |
| 2006 | 6 | 14 |
| 2007 | 8 | 5 |
| 2008 | 8 | 10 |
| 2009 | 4 | 6 |
| 2010 | 1 | 14 |
| 2011 | 4 | 11 |
| 2012 | 8 | 15 |
| 2013 | 5 | 5 |
| 2014 | 3 | 4 |
| 2015 | 6 | 9 |
| 2016 | 11 | 16 |
| 2017 | 4 | 18 |
| 2018 | 11 | 19 |
| 2019 | 20 | 14 |
| 2020 | 14 | 18 |
| 2021 | 18 | 18 |
| 2022 | 9 | 7 |
| 2023 | 11 | 8 |
| 2024 | 4 | 10 |
| 2025 | 3 | 2 |
| 2026 | 6 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Separation of hydrogen, methane, ethane, and propane in naphtha to ethane and propane fractionation section based on a dividing wall fractionation column integration12 May 2026US 12,623,980 B2Uop LLC
- Ethane separation with overhead cryogenic heat exchanger28 Apr 2026US 12,613,065 B2Uop LLC
- 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
- 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.
- Method and apparatus for purifying gaseous products from a co2 electrolysis process13 Nov 2025US 2025/0346546 A1Siemens Energy Global GmbH & Co. KG
- Processes for recovery of one or more of c2, c3, or c4 olefins from a product stream of olefin production reactor systems26 Jun 2025US 2025/0207853 A1Dow Global Technologies LLC
- High recovery co and co2 separation process from flue gas from a partial burn fluid catalytic cracking process8 Aug 2024US 2024/0261725 A1Uop LLC
- Method and Plant for Producing Ethylene and/or Other Olefins by Steam Cracking18 Jul 2024US 2024/0239728 A1BASF SE
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
- Hydrocarbon gas processing134US 5,568,737 AElcor Corporation · 1996
- Hydrocarbon gas processing122US 6,182,469 B2Elcor Corporation · 2001
- Membrane-aided distillation for carbon dioxide and hydrocarbon separation103US 4,602,477 AAir Products and Chemicals, Inc. · 1986
- Hydrocarbon gas processing100US 5,771,712 AElcor Corporation · 1998