F24D 19/081
For steam heating systems
Official title: {for steam heating systems}
F24D19/081 (For steam heating systems) appears on 7 US grants and 5 published applications in this corpus.
Search patents in F24D- Granted patents
- 7
- Published applications
- 5
- Assignees
- 6
- Inventors
- 10
- Latest grant
- 28 Sep 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 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 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Vacuum steam heating system28 Sep 2021US 11,131,465 B2“Energy of Vacuum” Limited Liability Company
- System and method for generating heated water and distilled water23 Feb 2021US 10,928,097 B2
- Automated temperature control of heating radiators27 Oct 2020US 10,816,223 B2Therm Controls Incorporated
- Vacuum sustaining heating systems and methods12 May 2015US 9,027,846 B2
- Adjustable air valve9 May 1989US 4,828,169 A
- Subatmospheric heating system23 Jan 2020US 2020/0025394 A1
- Vacuum steam heating system23 May 2019US 2019/0154274 A1“Energy of Vacuum” Limited Liability Company
- Automated temperature control of heating radiators31 Jan 2019US 2019/0032927 A1Therm Controls Incorporated
- System and method for generating heated water and distilled water29 Nov 2018US 2018/0340708 A1Canadavfd Corp (Ltd)
- Vacuum sustaining heating systems and methods19 Mar 2015US 2015/0076241 A1
Most cited
By later US patents
- Adjustable air valve8US 4,828,169 A1989
- Vacuum sustaining heating systems and methods6US 9,027,846 B22015
- Radiator vent valve3US 4,765,537 AITT Corporation · 1988
- Automated temperature control of heating radiators1US 10,816,223 B2Therm Controls Incorporated · 2020
- Vent control unit for a radiator in a one pipe type steam heating system1US 4,669,655 ADanfoss A/S · 1987