F22B 21/30
Bent in u-loop form
Official title: bent in U-loop form
F22B21/30 (Bent in u-loop form) appears on 8 US grants and 10 published applications in this corpus.
Search patents in F22B- Granted patents
- 8
- Published applications
- 10
- Assignees
- 10
- Inventors
- 29
- Latest grant
- 27 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vapour and liquid drum for a shell-and-tube heat exchanger27 Dec 2022US 11,536,447 B2Alfa Laval Olmi S.P.A
- Shell-and-tube apparatus for heat recovery from a hot process stream16 Jun 2020US 10,684,007 B2Casale SA
- Steam generator11 Feb 2020US 10,557,629 B2ROLLS-ROYCE plc
- Method and device for protecting heat exchanger pipes and a ceramic component31 Dec 2019US 10,520,266 B2Martin GmbH fuer Umwelt- und Energietechnik
- Boiler with improved hot gas passages2 Aug 2016US 9,404,650 B2
- Steam generation device18 Jun 2026US 2026/0168666 A1Yuyao Hengxi Technology Co., Ltd.
- Multi-tube once-through boiler2 Jun 2022US 2022/0170626 A1
- Vapour and liquid drum for a shell-and-tube heat exchanger26 Mar 2020US 2020/0096191 A1Alfa Laval Olmi S.P.A
- A shell-and-tube apparatus for heat recovery from a hot process stream9 Jun 2016US 2016/0161106 A1Casale SA
- Steam generator13 Aug 2015US 2015/0226420 A1ROLLS-ROYCE plc
Most cited
By later US patents
- Vertical radiation tank19US 4,513,694 A1985
- Modular solar receiver panels and solar boilers with modular receiver panels5US 8,517,008 B2Babcock Power Services, Inc. · 2013
- Steam generating magnetohydrodynamic diffuser4US 4,294,199 ACombustion Engineering, Inc. · 1981
- Boiler with improved hot gas passages1US 9,404,650 B22016