F24D 9/02
Hot water and steam systems
F24D9/02 (Hot water and steam systems) appears on 6 US grants and 4 published applications in this corpus.
Search patents in F24D- Granted patents
- 6
- Published applications
- 4
- Assignees
- 4
- Inventors
- 7
- Latest grant
- 23 Mar 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 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 | 1 | 1 |
| 2004 | 1 | 2 |
| 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 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Heat exchange system and method of controlling the alternation and redundancy between heat exchangers therein23 Mar 2021US 10,955,145 B2Maxi-Therme Inc.
- Energy system10 Aug 2004US 6,772,712 B2Vapor Tech, Inc.
- Energy system23 Dec 2003US 6,666,172 B2Vapor Tech, Inc.
- Energy conversion system and components thereof1 Nov 1983US 4,412,509 A
- HTW heating system having an electrode steam boiler as the direct source of HTW4 Oct 1977US 4,052,587 A
- Heat exchange system and method of controlling the alternation and redundancy between heat exchangers therein31 Dec 2020US 2020/0408423 A1Maxi-Therme Inc.
- Energy system16 Dec 2004US 2004/0251310 A1Vapor Tech, Inc.
- Energy system1 Apr 2004US 2004/0060522 A1Vapor Tech, Inc.
- Energy system13 Mar 2003US 2003/0047144 A1Vapor Tech, Inc.
Most cited
By later US patents
- Energy conversion system and components thereof6US 4,412,509 A1983
- HTW heating system having an electrode steam boiler as the direct source of HTW5US 4,052,587 A1977
- Energy system4US 6,666,172 B2Vapor Tech, Inc. · 2003
- Energy system3US 6,772,712 B2Vapor Tech, Inc. · 2004
- Boiler with condenser1US 4,016,834 AAGA Radiator AB · 1977