F22B 29/065
Involving upper vertically disposed water tubes and lower horizontally- or helically disposed
Official title: {involving upper vertically disposed water tubes and lower horizontally- or helically disposed water tubes}
F22B29/065 (Involving upper vertically disposed water tubes and lower horizontally- or helically disposed) appears on 22 US grants and 4 published applications in this corpus.
Search patents in F22B- Granted patents
- 22
- Published applications
- 4
- Assignees
- 10
- Inventors
- 33
- Latest grant
- 28 Apr 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Overfire air system for low nitrogen oxide tangentially fired boiler28 Apr 2020US 10,634,341 B2General Electric Technology GmbH
- Boiler apparatus7 Jun 2011US 7,954,460 B2Babcock-Hitachi Kabushiki Kaisha
- Suspended steam boiler31 Mar 2009US 7,509,928 B2Hitachi Power Europe GmbH
- Furnace wall structure11 Jul 2006US 7,073,451 B1Babcock-Hitachi Kabushiki Kaisha
- Once-through steam generator having spirally disposed evaporator tubes9 Nov 1999US 5,979,369 ASeimens Aktiengesellschaft
- Overfire Air System For Low Nitrogen Oxide Tangentially Fired Boiler1 Mar 2018US 2018/0058687 A1General Electric Technology GmbH
- Suspended steam boiler2 Aug 2007US 2007/0175413 A1Hitachi Power Europe GmbH
- Boiler apparatus5 Jul 2007US 2007/0151525 A1Babcock-Hitachi Kabushiki Kaisha
- Furnace wall structure13 Jul 2006US 2006/0150874 A1Babcock-Hitachi Kabushiki Kaisha
Most cited
By later US patents
- Once-through steam generator22US 4,987,862 ASiemens Aktiengesellschaft · 1991
- 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
- Assembly of a combustion chamber nose in a continuous-flow boiler having a two-section construction with gas-tightly welded walls12US 4,075,979 AKraftwerk Union Aktiengesellschaft · 1978
- Vapor generating system utilizing angularly arranged bifurcated furnace boundary wall fluid flow tubes12US 4,178,881 AFoster Wheeler Energy Corporation · 1979