F25J 2220/40
Separating high boiling, i.e. less volatile components from air
Official title: Separating high boiling, i.e. less volatile components from air, e.g. CO2, hydrocarbons
F25J2220/40 (Separating high boiling, i.e. less volatile components from air) appears on 47 US grants and 44 published applications in this corpus.
Search patents in F25J- Granted patents
- 47
- Published applications
- 44
- Assignees
- 29
- Inventors
- 107
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 2 |
| 2016 | 4 | 4 |
| 2017 | 3 | 5 |
| 2018 | 3 | 5 |
| 2019 | 4 | 6 |
| 2020 | 5 | 5 |
| 2021 | 4 | 2 |
| 2022 | 0 | 0 |
| 2023 | 4 | 3 |
| 2024 | 3 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid hydrogen vaporization system and liquid hydrogen vaporization method19 May 2026US 12,631,372 B2H2CREO Corp.
- Power generation and storage24 Jun 2025US 12,338,765 B2ROLLS-ROYCE plc
- Air separation apparatus, adsorber, and method14 Jan 2025US 12,196,486 B2Air Products and Chemicals, Inc.
- Electrical power producing device31 Dec 2024US 12,180,885 B2Hyundai Motor Company
- Plant and process for energy storage12 Nov 2024US 12,140,052 B2Energy Dome S.P.A.
- High-purity oxygen production apparatus5 Mar 2026US 2026/0063360 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Power generation and storage6 Feb 2025US 2025/0043715 A1ROLLS-ROYCE plc
- Liquid hydrogen vaporization system and liquid hydrogen vaporization method19 Sep 2024US 2024/0310083 A1H2CREO Corp.
- Electrical power producing device29 Feb 2024US 2024/0068400 A1Hyundai Motor Company
- Process for cryogenic separation of a feed stream containing methane and air gases, facility for producing biomethane by purification of biogases derived from non-hazardous waste storage facilities (nhwsf) implementing the process30 Nov 2023US 2023/0384027 A1Waga Energy
Most cited
By later US patents
- Recovery of volatile organic compounds from gas streams38US 5,450,728 AAir Products and Chemicals, Inc. · 1995
- Process for the production of high pressure oxygen gas21US 4,345,925 AUnion Carbide Corporation · 1982
- Contaminant removal system for purifying air16US 5,540,058 ARockwell International Corporation · 1996
- Process and installation for the fractionation of air into specific gases16US 7,514,056 B2CO2 Solution Inc. · 2009
- Rocket engine14US 5,025,623 AMitsubishi Jukogyo Kabushiki Kaisha · 1991