F22B 37/12
Forms of water tubes
Official title: Forms of water tubes, e.g. of varying cross-section
F22B37/12 (Forms of water tubes) appears on 38 US grants and 33 published applications in this corpus.
Search patents in F22B- Granted patents
- 38
- Published applications
- 33
- Assignees
- 39
- Inventors
- 113
- Latest grant
- 31 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 3 |
| 2012 | 1 | 2 |
| 2013 | 0 | 4 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 4 | 3 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 4 |
| 2023 | 5 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Reverse steam generator for a lead-cooled fast reactor31 Oct 2023US 11,802,686 B2State Atomic Energy Corporation “Rosatom” Acts on Behalf of the Russian Federation
- Heat exchanger and system for cooling a fluid comprising such a heat exchanger26 Sep 2023US 11,768,036 B2Liebherr-Aerospace Toulouse SAS
- Test loop for simulating steam generator with or without axial economizer and test method thereof12 Sep 2023US 11,754,281 B2Xi' An Jiaotong University
- Heat exchanger, such as for a solar power plant29 Aug 2023US 11,739,931 B2Header-Coil Company A/S
- Economizer22 Aug 2023US 11,732,885 B2
- Test Loop for Simulating Steam Generator with or without Axial Economizer and Test Method Thereof30 Jun 2022US 2022/0205630 A1Xi' An Jiaotong University
- Economizer30 Jun 2022US 2022/0205631 A1
- Reverse steam generator for a lead-cooled fast reactor3 Mar 2022US 2022/0065441 A1State Atomic Energy Corporation “Rosatom” Acts on Behalf of the Russian Federation
- Heat exchanger and system for cooling a fluid comprising such a heat exchanger13 Jan 2022US 2022/0011049 A1Liebherr-Aerospace Toulouse SAS
- Heat exchanger, such as for a solar power plant9 Dec 2021US 2021/0381687 A1Aalborg Csp A/S
Most cited
By later US patents
- Once-through steam generator31US 4,474,011 AShell California Production Inc. · 1984
- Steam generator25US 6,189,491 B1Siemens Aktiengesellschaft · 2001
- Heating device having dumbbell-shaped reaction tubes therein24US 3,964,873 AMitsubishi Jukogyo Kabushiki Kaisha · 1976
- Heat transfer fluid heater with continuously flushed vent and drain15US 3,962,999 AAqua-Chem, Inc. · 1976
- Device to equalize steam quality in pipe networks15US 5,407,274 ATexaco Inc. · 1995