F25J 3/06
Processes or apparatus for separating the constituents of gaseous or liquefied gaseous
Official title: by partial condensation (F25J3/08 takes precedence; by rectification F25J3/02 {; purification of hydrocarbons in general C07C7/00})
F25J3/06 (Processes or apparatus for separating the constituents of gaseous or liquefied gaseous) appears on 432 US grants and 532 published applications in this corpus.
Search patents in F25J- Granted patents
- 432
- Published applications
- 532
- Assignees
- 242
- Inventors
- 1,046
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 6 | 0 |
| 1987 | 7 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 0 |
| 2002 | 1 | 3 |
| 2003 | 3 | 6 |
| 2004 | 4 | 6 |
| 2005 | 3 | 5 |
| 2006 | 4 | 7 |
| 2007 | 4 | 7 |
| 2008 | 4 | 13 |
| 2009 | 1 | 11 |
| 2010 | 3 | 19 |
| 2011 | 4 | 27 |
| 2012 | 9 | 38 |
| 2013 | 11 | 38 |
| 2014 | 17 | 24 |
| 2015 | 15 | 31 |
| 2016 | 17 | 24 |
| 2017 | 27 | 27 |
| 2018 | 25 | 38 |
| 2019 | 26 | 29 |
| 2020 | 25 | 33 |
| 2021 | 19 | 18 |
| 2022 | 18 | 23 |
| 2023 | 17 | 25 |
| 2024 | 17 | 29 |
| 2025 | 24 | 21 |
| 2026 | 19 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cryo-collection systems and related methods and hyperpolarizer systems22 Sep 2026US 12,742,592 B2Polarean, Inc.
- Method and system for separating a gas mixture25 Aug 2026US 12,714,965 B2Linde Aktiengesellschaft
- Latent heat and condensation exchanger11 Aug 2026US 12,704,076 B2Sustainable Energy Solutions, LLC
- Method and system for efficient hydrogen compression11 Aug 2026US 12,704,116 B2Nuovo Pignone Tecnologie Srl
- Method and apparatus for drying a flow rich in carbon dioxide16 Jun 2026US 12,654,128 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process for starting up a carbon capture process1 Oct 2026US 2026/0295494 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Co2 separation system1 Oct 2026US 2026/0298533 A1National Institute for Materials Science National Institute for Materials Science
- Cryogenic removal of carbon dioxide from the atmosphere17 Sep 2026US 2026/0276301 A1Microsoft Technology Licensing, LLC
- Method and device for coupling refrigerating and heat transfer effects10 Sep 2026US 2026/0266540 A1Cryo Rur
- Carbon dioxide recovery system and carbon dioxide recovery method3 Sep 2026US 2026/0257923 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Method and apparatus for flue gas cleaning by separation and liquefaction of sulfur dioxide and carbon dioxide127US 5,133,190 A1992
- Process for recovering hydrogen from a multi-component gas stream113US 4,654,063 AAir Products and Chemicals, Inc. · 1987
- Process for solids waste landfill gas treatment and separation of methane and carbon dioxide95US 5,642,630 A1997
- Membrane-augmented power generation94US 6,035,641 AMembane Technology and Research, Inc. · 2000
- Process and apparatus for producing liquid carbon dioxide93US 5,233,837 AEnerfex, Inc. · 1993