F28F 21/088
For domestic or space-heating systems
Official title: {for domestic or space-heating systems}
F28F21/088 (For domestic or space-heating systems) appears on 24 US grants and 19 published applications in this corpus.
Search patents in F28F- Granted patents
- 24
- Published applications
- 19
- Assignees
- 14
- Inventors
- 42
- Latest grant
- 28 May 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 4 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 3 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 3 | 0 |
| 2019 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Aluminum alloy brazing sheet and brazing method28 May 2019US 10,300,563 B2Uacj Corporation
- Modular heat exchanger with sections interconnected by connectors23 Oct 2018US 10,105,801 B2Dejatech Holding B.V.
- Freeze damage resistant window perimeter radiator17 Apr 2018US 9,945,620 B2
- Towel warmer for use in conjunction with a hot tub9 Jan 2018US 9,861,236 B2
- Heat exchanger and water heater including the same18 Nov 2014US 8,887,795 B2Rinnai Corporation
- Modular heat exchanger with sections interconnected by connectors24 Jan 2019US 2019/0022807 A1Dejatech Holding B.V.
- Towel warmer for use in conjunction with a hot tub16 Nov 2017US 2017/0325639 A9
- Aluminum alloy brazing sheet and brazing method26 Oct 2017US 2017/0304956 A1Uacj Corporation
- Towel warmer for use in conjunction with a hot tub20 Aug 2015US 2015/0230671 A1
- Freeze Damage Resistant Window Perimeter Radiator28 May 2015US 2015/0144310 A1
Most cited
By later US patents
- Method of manufacturing a long continuous tube having a coating of brazing powders22US 5,656,332 AMitsubishi Aluminum Co., Ltd. · 1997
- Heat exchanger unit formed of a plurality of modular units including connection couplers14US 4,856,581 A1989
- Radiator made of aluminum for central-heating plants12US 4,034,802 A1977
- Heat convector for use in buildings11US 3,942,587 ASwiss Aluminium Ltd. · 1976
- Method of die casting a metallic cast product having a metallic hollow member embedded therein8US 4,344,477 ANippon Light Metal Company, Ltd. · 1982