F25J 2290/32
Details on header or distribution passages of heat exchangers
Official title: Details on header or distribution passages of heat exchangers, e.g. of reboiler-condenser or plate heat exchangers
F25J2290/32 (Details on header or distribution passages of heat exchangers) appears on 153 US grants and 119 published applications in this corpus.
Search patents in F25J- Granted patents
- 153
- Published applications
- 119
- Assignees
- 56
- Inventors
- 316
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 3 |
| 2003 | 4 | 3 |
| 2004 | 5 | 3 |
| 2005 | 0 | 3 |
| 2006 | 2 | 2 |
| 2007 | 2 | 3 |
| 2008 | 1 | 7 |
| 2009 | 2 | 4 |
| 2010 | 2 | 6 |
| 2011 | 2 | 2 |
| 2012 | 2 | 4 |
| 2013 | 2 | 5 |
| 2014 | 2 | 3 |
| 2015 | 3 | 6 |
| 2016 | 3 | 5 |
| 2017 | 6 | 2 |
| 2018 | 2 | 8 |
| 2019 | 6 | 8 |
| 2020 | 3 | 13 |
| 2021 | 4 | 7 |
| 2022 | 9 | 12 |
| 2023 | 4 | 4 |
| 2024 | 10 | 3 |
| 2025 | 5 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Controllable injection for implementing different local refrigerant distribution6 Oct 2026US 12,753,975 B2Linde Aktiengesellschaft
- Process and apparatus for liquefaction of CO211 Aug 2026US 12,704,322 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Mixed refrigerant system and method4 Nov 2025US 12,460,862 B2Chart Energy & Chemicals, Inc.
- Advanced method of heavy hydrocarbon removal and natural gas liquefaction using closed-loop refrigeration system22 Jul 2025US 12,366,407 B2Enflex, Inc.
- Method for liquefying natural gas with improved exchanger configuration6 May 2025US 12,292,235 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process and apparatus for liquefaction of co212 Feb 2026US 2026/0043605 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Solvent recovery device5 Jun 2025US 2025/0180286 A1Toyota Jidosha Kabushiki Kaisha
- Liquefactor and method for liquefying a gas19 Sep 2024US 2024/0310114 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
- Controllable injection for implementing different local refrigerant distribution29 Aug 2024US 2024/0288223 A1Linde Aktiengesellschaft
- An Advanced Method of Heavy Hydrocarbon Removal and Natural Gas Liquefaction Using Closed-Loop Refrigeration System29 Feb 2024US 2024/0068745 A1Enflex, Inc.
Most cited
By later US patents
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002
- Apparatus for the low-temperature separation of a gas mixture, in particular air80US 7,516,626 B2Linde Aktiengesellschaft · 2009
- Process for cooling a product in a heat exchanger employing microchannels55US 7,000,427 B2Velocys, Inc. · 2006
- Heat exchanger with rectification effect51US 3,992,168 AKobe Steel, Ltd. · 1976
- Cryogenic industrial gas liquefaction with hybrid refrigeration generation48US 6,041,620 APraxair Technology, Inc. · 2000