F24H 1/526
Pipes in pipe heat exchangers for sanitary water
Official title: {Pipes in pipe heat exchangers for sanitary water}
F24H1/526 (Pipes in pipe heat exchangers for sanitary water) appears on 5 US grants and 5 published applications in this corpus.
Search patents in F24H- Granted patents
- 5
- Published applications
- 5
- Assignees
- 6
- Inventors
- 10
- Latest grant
- 5 Nov 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Water heat exchanger with tube drainage member5 Nov 2019US 10,465,943 B2Rinnai Corporation
- Dual pipe heat exchanger of instantaneous boiler for house heating and hot water and boiler6 Nov 2012US 8,302,566 B2Kyungdong Everon Co., Ltd.
- Dual pipe heat exchanger of boiler for house heating and hot water21 Feb 2012US 8,117,997 B2Kyungdong Everon Co., Ltd.
- Heating apparatus and method for operation thereof28 Nov 2000US 6,152,086 ACooperatieve Inkoopvereniging
- Central heating installation with a hot water circuit for domestic usage7 Aug 1990US 4,946,098 AE. L. M. Leblanc
- Heat exchanger and water heater1 Mar 2018US 2018/0058717 A1Rinnai Corporation
- Fluid Heater11 Nov 2010US 2010/0282440 A1Hydox Pty Ltd
- Hot-Water Supplying System of Boiler Equipped With Dual Pipe Heat Exchanger19 Nov 2009US 2009/0283057 A1Kyungdong Navien Co., Ltd.
- Dual Pipe Heat Exchanger of Boiler for House Heating and Hot Water19 Nov 2009US 2009/0283249 A1Kyungdong Everon Co., Ltd.
- Dual Pipe Heat Exchanger of Instantaneous Boiler for House Heating and Hot Water and Boiler14 May 2009US 2009/0120623 A1Kyungdong Everon Co., Ltd.
Most cited
By later US patents