F25J 3/04884
Arrangement of reboiler-condensers
Official title: {Arrangement of reboiler-condensers}
F25J3/04884 (Arrangement of reboiler-condensers) appears on 98 US grants and 80 published applications in this corpus.
Search patents in F25J- Granted patents
- 98
- Published applications
- 80
- Assignees
- 18
- Inventors
- 141
- Latest grant
- 12 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 0 | 0 |
| 1997 | 9 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 3 |
| 2002 | 3 | 1 |
| 2003 | 2 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 0 | 3 |
| 2015 | 1 | 5 |
| 2016 | 4 | 14 |
| 2017 | 4 | 10 |
| 2018 | 10 | 2 |
| 2019 | 10 | 9 |
| 2020 | 8 | 3 |
| 2021 | 1 | 3 |
| 2022 | 1 | 3 |
| 2023 | 2 | 3 |
| 2024 | 6 | 5 |
| 2025 | 2 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process and apparatus for improved recovery of argon12 Aug 2025US 12,385,692 B2Air Products and Chemicals, Inc.
- System and method for cryogenic air separation using four distillation columns including an intermediate pressure column28 Jan 2025US 12,209,802 B2Praxair Technology, Inc.
- Air separation device and air separation method22 Oct 2024US 12,123,647 B2Taiyo Nippon Sanso Corporation
- Air separation unit and method for production of nitrogen and argon using a distillation column system with an intermediate pressure kettle column6 Aug 2024US 12,055,345 B2Praxair Technology, Inc.
- Air separation unit and method for production of high purity nitrogen product using a distillation column system with an intermediate pressure kettle column16 Apr 2024US 11,959,701 B2Praxair Technology, Inc.
- Method for cryogenic separation of air, and air separation plant16 Jul 2026US 2026/0202125 A1Linde Aktiengesellschaft
- Apparatus and process for providing nitrogen and oxygen18 Sep 2025US 2025/0290692 A1Air Products and Chemicals, Inc.
- Method for the cryogenic separation of air, and air separation plant13 Feb 2025US 2025/0052493 A1
- Process and Apparatus for Improved Recovery of Argon18 Apr 2024US 2024/0125550 A1Air Products and Chemicals, Inc.
- Air separation unit and method for cryogenic separation of air using a distillation column system including an intermediate pressure kettle column1 Feb 2024US 2024/0035741 A1Praxair Technology, Inc.
Most cited
By later US patents
- Air separation process using packed columns for oxygen and argon recovery27US 4,871,382 AAir Products and Chemicals, Inc. · 1989
- Indirect heat exchanger23US 5,333,683 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1994
- Vaporization-condensation apparatus for air distillation double column, and air distillation equipment including such apparatus22US 5,071,458 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1991
- Downflow shell and tube reboiler-condenser heat exchanger for cryogenic rectification20US 5,699,671 APraxair Technology, Inc. · 1997
- Annular column for cryogenic rectification20US 6,023,945 APraxair Technology, Inc. · 2000