F22B 27/12
Built-up from rotary heat-exchange elements
Official title: built-up from rotary heat-exchange elements, e.g. from tube assemblies
F22B27/12 (Built-up from rotary heat-exchange elements) appears on 12 US grants and 6 published applications in this corpus.
Search patents in F22B- Granted patents
- 12
- Published applications
- 6
- Assignees
- 7
- Inventors
- 18
- Latest grant
- 26 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 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 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 4 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 4 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Water-tube boiler with concentric heat-exchange coils with ash-removal system26 Oct 2021US 11,156,355 B2
- High pressure combustor with hot surface ignition12 Jul 2016US 9,388,976 B2Orbital ATK, Inc.
- High efficiency direct contact heat exchanger5 Jul 2016US 9,383,093 B2Orbital ATK, Inc.
- Fracturing apparatus5 Jul 2016US 9,383,094 B2Orbital ATK, Inc.
- Downhole combustor5 Jan 2016US 9,228,738 B2Orbital ATK, Inc.
- Water-Tube Boiler with Concentric Heat-Exchange Coils with Ash-Removal System5 Aug 2021US 2021/0239312 A1
- High efficiency direct contact heat exchanger26 Dec 2013US 2013/0340691 A1Alliant Techsystems Inc.
- Downhole combustor26 Dec 2013US 2013/0341015 A1Alliant Techsystems Inc.
- Fracturing apparatus26 Dec 2013US 2013/0341026 A1Alliant Techsystems Inc.
- High pressure combustor with hot surface ignition26 Dec 2013US 2013/0344448 A1Alliant Techsystems Inc.
Most cited
By later US patents
- Method and apparatus for improving heat transfer18US 4,316,434 ABailey Burners, Inc. · 1982
- Warm mist humidifier with automatic cleaning device17US 4,869,853 A1989
- Waste-heat turbine unit16US 4,785,631 ADr. Ing. h,c.F. Porsche Aktiengesellschaft · 1988
- Method and apparatus for generating steam for a cooking device8US 6,959,668 B2Rational AG · 2005
- Rotary heat exchanger7US 4,000,777 A1977