F22B 37/143
Panel shaped heating surfaces built up from tubes
Official title: {Panel shaped heating surfaces built up from tubes (F22B37/145 takes precedence)}
F22B37/143 (Panel shaped heating surfaces built up from tubes) appears on 8 US grants and 5 published applications in this corpus.
Search patents in F22B- Granted patents
- 8
- Published applications
- 5
- Assignees
- 7
- Inventors
- 22
- Latest grant
- 12 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 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 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Support assembly for a boiler12 Apr 2022US 11,300,287 B2Valmet Technologies Oy
- Steam generator30 Jan 2018US 9,879,853 B2Siemens Aktiengesellschaft
- Evaporator surface structure of a circulating fluidized bed boiler and a circulating fluidized bed boiler with such an evaporator surface structure26 May 2015US 9,038,577 B1Foster Wheeler Energia Oy
- Steam generator22 Mar 2005US 6,868,807 B2Siemens Aktiengesellschaft
- Arrangement for the protection of tube sections of platen-like heat-transfer surfaces disposed in a gas conduit against wear by gases laden with solid particles13 Aug 1991US 5,038,856 AL. & C. Steinmuller GmbH
- Support assembly for a boiler5 Aug 2021US 2021/0239313 A1Valmet Technologies Oy
- Steam generator13 Feb 2014US 2014/0041601 A1Siemens Aktiengesellschaft
- Once-through steam generator for using at steam temperatures of above 650°c22 Nov 2012US 2012/0291720 A1
- Once-through steam generator for burning dry brown coal1 Nov 2012US 2012/0272929 A1
- Steam generator5 Aug 2004US 2004/0149239 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- 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
- Steam generator9US 6,868,807 B2Siemens Aktiengesellschaft · 2005
- Forced-flow once-through boiler for variable supercritical pressure operation8US 4,331,105 AMitsubishi Jukogyo Kabushiki Kaisha · 1982
- Heat exchanger tube spacers7US 5,012,767 ALeighton Industries, Inc. · 1991
- Evaporator surface structure of a circulating fluidized bed boiler and a circulating fluidized bed boiler with such an evaporator surface structure5US 9,038,577 B1Foster Wheeler Energia Oy · 2015