F25J 2250/00
Details related to the use of reboiler-condensers
F25J2250/00 (Details related to the use of reboiler-condensers) appears on 570 US grants and 407 published applications in this corpus.
Search patents in F25J- Granted patents
- 570
- Published applications
- 407
- Assignees
- 118
- Inventors
- 753
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 11 | 0 |
| 1987 | 17 | 0 |
| 1988 | 14 | 0 |
| 1989 | 14 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 18 | 0 |
| 1993 | 20 | 0 |
| 1994 | 19 | 0 |
| 1995 | 22 | 0 |
| 1996 | 11 | 0 |
| 1997 | 24 | 0 |
| 1998 | 24 | 0 |
| 1999 | 27 | 0 |
| 2000 | 15 | 0 |
| 2001 | 25 | 6 |
| 2002 | 19 | 12 |
| 2003 | 16 | 9 |
| 2004 | 7 | 8 |
| 2005 | 6 | 6 |
| 2006 | 4 | 7 |
| 2007 | 3 | 9 |
| 2008 | 6 | 14 |
| 2009 | 3 | 14 |
| 2010 | 1 | 10 |
| 2011 | 6 | 15 |
| 2012 | 5 | 13 |
| 2013 | 5 | 15 |
| 2014 | 6 | 9 |
| 2015 | 6 | 19 |
| 2016 | 12 | 28 |
| 2017 | 9 | 21 |
| 2018 | 20 | 22 |
| 2019 | 28 | 22 |
| 2020 | 11 | 15 |
| 2021 | 9 | 30 |
| 2022 | 11 | 21 |
| 2023 | 17 | 34 |
| 2024 | 17 | 20 |
| 2025 | 21 | 14 |
| 2026 | 11 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F25J 2250/30External or auxiliary boiler-condenser in generalIndexing code270
- F25J 2250/02Bath type boiler-condenser using thermo-siphon effectIndexing code208
- F25J 2250/20Boiler-condenser with multiple exchanger cores in parallel or with multiple re-boiling orIndexing code188
- F25J 2250/04Down-flowing type boiler-condenser, i.e. with evaporation of a falling liquid filmIndexing code83
- F25J 2250/10Boiler-condenser with superposed stagesIndexing code55
Recent patents
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- Air separation unit and air separation method25 Aug 2026US 12,716,651 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and plant for low temperature fractionation of air18 Aug 2026US 12,710,228 B2Linde Aktiengesellschaft
- Installation and process for production of a cryogenic fluid16 Jun 2026US 12,656,056 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic gas cooling system and method16 Jun 2026US 12,656,057 B2Chart Energy & Chemicals, Inc.
- Cryogenic boiler27 Aug 2026US 2026/0251387 A1Blue Origin Manufacturing, LLC
- Process and apparatus for purifying air and cryogenic air separation process and plant20 Aug 2026US 2026/0243508 A1
- Process and apparatus for intermittent liquefaction operation that can support continuous air separation processing6 Aug 2026US 2026/0227123 A1Air Products and Chemicals, Inc.
- Air separation method and air separation device30 Jul 2026US 2026/0218981 A1Taiyo Nippon Sanso Corporation
- Method for cryogenic separation of air, and air separation plant16 Jul 2026US 2026/0202125 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Power plant with carbon dioxide capture and zero pollutant emissions254US 5,724,805 AUniversity of Massachusetts Lowell · 1998
- Zero emissions closed rankine cycle power system124US 7,882,692 B2Clean Energy Systems, Inc. · 2011
- Air separation process and system utilizing pressure-swing driers95US 3,967,464 AAir Products and Chemicals, Inc. · 1976
- Heat exchanger with rectification effect51US 3,992,168 AKobe Steel, Ltd. · 1976
- Efficient process to produce oxygen48US 5,966,967 AAir Products and Chemicals, Inc. · 1999