F25J 1/0012
Primary atmospheric gases
Official title: {Primary atmospheric gases, e.g. air}
F25J1/0012 (Primary atmospheric gases) appears on 267 US grants and 313 published applications in this corpus.
Search patents in F25J- Granted patents
- 267
- Published applications
- 313
- Assignees
- 128
- Inventors
- 511
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 10 | 0 |
| 2001 | 5 | 1 |
| 2002 | 7 | 0 |
| 2003 | 8 | 2 |
| 2004 | 5 | 1 |
| 2005 | 1 | 3 |
| 2006 | 2 | 10 |
| 2007 | 4 | 5 |
| 2008 | 3 | 5 |
| 2009 | 5 | 10 |
| 2010 | 3 | 5 |
| 2011 | 6 | 14 |
| 2012 | 2 | 11 |
| 2013 | 2 | 4 |
| 2014 | 3 | 9 |
| 2015 | 4 | 21 |
| 2016 | 4 | 17 |
| 2017 | 15 | 25 |
| 2018 | 11 | 21 |
| 2019 | 12 | 12 |
| 2020 | 16 | 12 |
| 2021 | 9 | 23 |
| 2022 | 12 | 22 |
| 2023 | 14 | 28 |
| 2024 | 20 | 24 |
| 2025 | 21 | 17 |
| 2026 | 17 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrogen liquefaction system and hydrogen liquefaction method29 Sep 2026US 12,747,911 B2H2CREO Corp.
- System and method for co-production of a densified liquid oxygen product and densified liquid methane product15 Sep 2026US 12,736,280 B2Praxair Technology, Inc.
- Method and a relative apparatus for producing liquified gases8 Sep 2026US 12,729,906 B2Fpt Industrial S.P.A.
- Refrigeration-integrated hydrocarbon collection system and method of operation25 Aug 2026US 12,716,649 B2Oxy Low Carbon Ventures, LLC
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions25 Aug 2026US 12,716,650 B2Saipem S.P.A.
- Method for supplying gaseous nitrogen and liquefying nitrogen8 Oct 2026US 2026/0309410 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic liquefaction system and method27 Aug 2026US 2026/0251386 A1Nearshore Natural Gas, LLC
- System and method for the production and supply of a densified liquid oxygen product20 Aug 2026US 2026/0243506 A1
- Solid-cryogen encapsulation system13 Aug 2026US 2026/0235349 A1The United States of America as represented by the Secretary of the Navy
- Nitrogen management in an lng plant6 Aug 2026US 2026/0227121 A1ConocoPhillips Company
Most cited
By later US patents
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator136US 5,979,440 ASeQual Technologies, Inc. · 1999
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator133US 6,698,423 B1SeQual Technologies, Inc. · 2004
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator101US 6,681,764 B1SeQual Technologies, Inc. · 2004
- Ericsson cycle machine93US 4,984,432 A1991
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator91US 6,651,653 B1SeQual Technologies, Inc. · 2003