F25J 2250/02
Bath type boiler-condenser using thermo-siphon effect
Official title: Bath type boiler-condenser using thermo-siphon effect, e.g. with natural or forced circulation or pool boiling, i.e. core-in-kettle heat exchanger
F25J2250/02 (Bath type boiler-condenser using thermo-siphon effect) appears on 208 US grants and 231 published applications in this corpus.
Search patents in F25J- Granted patents
- 208
- Published applications
- 231
- Assignees
- 68
- Inventors
- 413
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 1 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 4 |
| 2002 | 6 | 2 |
| 2003 | 5 | 5 |
| 2004 | 3 | 2 |
| 2005 | 1 | 3 |
| 2006 | 3 | 3 |
| 2007 | 2 | 1 |
| 2008 | 3 | 10 |
| 2009 | 0 | 6 |
| 2010 | 1 | 8 |
| 2011 | 3 | 3 |
| 2012 | 2 | 9 |
| 2013 | 3 | 8 |
| 2014 | 3 | 3 |
| 2015 | 1 | 13 |
| 2016 | 7 | 20 |
| 2017 | 4 | 13 |
| 2018 | 14 | 14 |
| 2019 | 21 | 16 |
| 2020 | 7 | 4 |
| 2021 | 4 | 15 |
| 2022 | 6 | 15 |
| 2023 | 10 | 25 |
| 2024 | 10 | 10 |
| 2025 | 13 | 12 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Hydrogen liquefaction with stored hydrogen refrigeration source9 Jun 2026US 12,650,259 B2Chart Energy & Chemicals, Inc.
- Process for separating hydrogen from an olefin hydrocarbon effluent vapor stream2 Jun 2026US 12,643,067 B2Enflex, Inc.
- Process and apparatus for purifying air and cryogenic air separation process and plant20 Aug 2026US 2026/0243508 A1
- Method for cryogenic separation of air, and air separation plant16 Jul 2026US 2026/0202125 A1Linde Aktiengesellschaft
- High-purity oxygen production apparatus5 Mar 2026US 2026/0063360 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Recovering Natural Gas Liquids19 Feb 2026US 2026/0049764 A1Saudi Arabian Oil Company
- System and method for precooling a hydrogen feed stream with concurrent nitrogen liquefaction5 Feb 2026US 2026/0036362 A1
Most cited
By later US patents
- Method of liquefying and treating a natural gas42US 5,893,274 AShell Research Limited · 1999
- Reboiler-condenser with doubly-enhanced plates38US 4,715,433 AAir Products and Chemicals, Inc. · 1987
- Vapor-liquid contactor, cryogenic air separation unit and method of gas separation35US 6,565,629 B1Nippon Sanso Corporation · 2003
- System and method for storing gases at low temperature using a cold recovery system32US 7,024,885 B2Consultoria SS-Soluciones Sociedad Anonima · 2006
- Low temperature refrigeration process for helium or hydrogen mixtures using mixed refrigerant31US 3,992,167 AUnion Carbide Corporation · 1976