F25J 3/04018
Of main feed air
Official title: {of main feed air}
F25J3/04018 (Of main feed air) appears on 228 US grants and 216 published applications in this corpus.
Search patents in F25J- Granted patents
- 228
- Published applications
- 216
- Assignees
- 89
- Inventors
- 340
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 10 | 0 |
| 2001 | 11 | 7 |
| 2002 | 8 | 4 |
| 2003 | 7 | 10 |
| 2004 | 5 | 9 |
| 2005 | 7 | 7 |
| 2006 | 4 | 12 |
| 2007 | 7 | 5 |
| 2008 | 0 | 3 |
| 2009 | 4 | 8 |
| 2010 | 0 | 8 |
| 2011 | 6 | 6 |
| 2012 | 2 | 12 |
| 2013 | 4 | 14 |
| 2014 | 5 | 10 |
| 2015 | 7 | 7 |
| 2016 | 9 | 17 |
| 2017 | 11 | 12 |
| 2018 | 8 | 14 |
| 2019 | 16 | 6 |
| 2020 | 10 | 7 |
| 2021 | 7 | 6 |
| 2022 | 2 | 5 |
| 2023 | 5 | 7 |
| 2024 | 7 | 6 |
| 2025 | 3 | 10 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and process for improved argon recovery8 Sep 2026US 12,729,908 B2Air Products and Chemicals, Inc.
- Nitrogen generating device and nitrogen generating method31 Mar 2026US 12,590,758 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process for cryogenic fractionation of air, air fractionation plant and integrated system composed of at least two air fractionation plants30 Dec 2025US 12,510,294 B2Linde Aktiengesellschaft
- Method and plant for the production of ammonia with renewable energy22 Jul 2025US 12,365,595 B2Stamicarbon B. V.
- Process and apparatus for recovery of at least nitrogen and argon13 May 2025US 12,298,075 B2Air Products and Chemicals, Inc.
- Cryogenic air separation enhanced gas turbine21 May 2026US 2026/0139621 A1Rtx Corporation
- Multimodal microgrid system2 Apr 2026US 2026/0095051 A1Linkville Land Holdings LLC
- Thermal integration temperature balancing of air separation unit and power generation system19 Mar 2026US 2026/0078947 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process and apparatus for separating a gas mixture5 Feb 2026US 2026/0036365 A1L'Air Liquide, Société Anonyme pour I'Etube et I'Exploitation des Procédés Georges Claude
- Processing Gases18 Dec 2025US 2025/0383143 A1NET Power LLC
Most cited
By later US patents
- Hydrocarbon combustion power generation system with CO2 sequestration337US 6,389,814 B1Clean Energy Systems, Inc. · 2002
- Power plant with carbon dioxide capture and zero pollutant emissions254US 5,724,805 AUniversity of Massachusetts Lowell · 1998
- Hydrocarbon combustion power generation system with CO2 sequestration216US 7,043,920 B2Clean Energy Systems, Inc. · 2006
- Hydrocarbon combustion power generation system with CO2 sequestration209US 6,170,264 B2Clean Energy Systems, Inc. · 2001
- Solid-fueled power generation system with carbon dioxide sequestration and method therefor203US 6,148,602 ANorther Research & Engineering Corporation · 2000