F22B 11/00
Steam boilers of combined fire-tube type and water-tube type, i.e. steam boilers
Official title: Steam boilers of combined fire-tube type and water-tube type, i.e. steam boilers of fire-tube type having auxiliary water tubes
F22B11/00 (Steam boilers of combined fire-tube type and water-tube type, i.e. steam boilers) appears on 8 US grants and 7 published applications in this corpus.
Search patents in F22B- Granted patents
- 8
- Published applications
- 7
- Assignees
- 8
- Inventors
- 13
- Latest grant
- 23 Feb 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 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 | 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 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Flash boiler23 Feb 2021US 10,928,058 B2
- Hot water boiler7 May 2019US 10,281,139 B2
- Counterflow ion transport boiler system11 Dec 2018US 10,151,474 B2King Fahd University of Petroleum and Minerals
- Fire tube boiler system with ion transport membranes10 Jul 2018US 10,018,352 B1King Fahd University of Petroleum and Minerals
- HRSG for fluidized gasification11 Aug 2015US 9,103,234 B2Synthesis Energy Systems, Inc.
- Flash boiler15 Aug 2019US 2019/0249864 A1Vytis, Ltd.
- Counterflow ion transport boiler system25 Oct 2018US 2018/0306433 A1King Fahd University of Petroleum and Minerals
- Hot Water Boiler11 Jan 2018US 2018/0010787 A1
- Apparatus for generating superheated vapor using waste heat recovery30 Oct 2014US 2014/0318125 A1Kroens Co., Ltd.
- Steam generator12 Dec 2013US 2013/0327284 A1Linde Aktiengesellschaft
Most cited
By later US patents