F22B 29/061
Construction of tube walls
Official title: {Construction of tube walls}
F22B29/061 (Construction of tube walls) appears on 70 US grants and 47 published applications in this corpus.
Search patents in F22B- Granted patents
- 70
- Published applications
- 47
- Assignees
- 34
- Inventors
- 131
- Latest grant
- 4 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 3 | 4 |
| 2012 | 1 | 5 |
| 2013 | 0 | 8 |
| 2014 | 5 | 3 |
| 2015 | 8 | 3 |
| 2016 | 3 | 6 |
| 2017 | 5 | 3 |
| 2018 | 2 | 1 |
| 2019 | 3 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Water feedback in vertical forced-flow steam generators4 Jul 2023US 11,692,703 B2Siemens Energy Global GmbH & Co. KG
- System and method for manufacturing a part29 Mar 2022US 11,286,536 B2General Electric Company
- Once through steam generator with 100% quality steam output10 Nov 2020US 10,830,431 B2Canada J-R Consulting Inc.
- Overfire air system for low nitrogen oxide tangentially fired boiler28 Apr 2020US 10,634,341 B2General Electric Technology GmbH
- Method of manufacturing a helical coil steam generator24 Dec 2019US 10,512,991 B2NuScale Power, LLC
- Apparatus of generating water vapor and fuel cell system having the apparatus4 Dec 2025US 2025/0372682 A1Mico Power Ltd.
- Gas-fired steam-injection boiler for oil field24 Oct 2024US 2024/0353095 A1China Petroleum & Chemical Corporation
- Electric steam generating device25 Jul 2024US 2024/0247798 A1Kohler Co.
- Multi-tube once-through boiler2 Jun 2022US 2022/0170626 A1
- Water feedback in vertical forced-flow steam generators6 May 2021US 2021/0131312 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- Once-through steam generator22US 4,987,862 ASiemens Aktiengesellschaft · 1991
- Forced flow vapor generator plant20US 4,430,962 ASulzer Brothers Limited · 1984
- Vapor generating system having a division wall penetrating a furnace boundary wall formed in part by angularly extending fluid flow tubes13US 4,245,588 AFoster Wheeler Energy Corporation · 1981
- Continuous vertical-to-angular tube transitions13US 5,560,322 AFoster Wheeler Energy Corporation · 1996
- Fossil fuel-fired once-through flow stream generator13US 5,735,236 ASiemens Aktiengesellschaft · 1998