F24H 1/0009
Water heaters: of the reduced pressure or vacuum steam type
Official title: {of the reduced pressure or vacuum steam type}
F24H1/0009 (Water heaters: of the reduced pressure or vacuum steam type) appears on 12 US grants and 10 published applications in this corpus.
Search patents in F24H- Granted patents
- 12
- Published applications
- 10
- Assignees
- 9
- Inventors
- 27
- Latest grant
- 28 Sep 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 2 |
| 2015 | 2 | 2 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vacuum steam heating system28 Sep 2021US 11,131,465 B2“Energy of Vacuum” Limited Liability Company
- Steam generator13 Sep 2016US 9,441,856 B2Certek Heat Machine Inc.
- Vapor vacuum condensing boiler designs15 Sep 2015US 9,134,041 B2
- Vacuum sustaining heating systems and methods12 May 2015US 9,027,846 B2
- Vapor vacuum heating systems and integration with condensing vacuum boilers22 Apr 2014US 8,702,013 B2
- Vaporizer14 May 2026US 2026/0132505 A1Lintec Corporation
- Vacuum steam heating system23 May 2019US 2019/0154274 A1“Energy of Vacuum” Limited Liability Company
- Apparatus and method for cleaning flue gas3 Mar 2016US 2016/0061487 A1
- Steam generator6 Aug 2015US 2015/0219362 A1Certek Heat Machine Inc.
- Vacuum sustaining heating systems and methods19 Mar 2015US 2015/0076241 A1
Most cited
By later US patents
- Y-shaped portable electric space heater with value to reduce pressure within the boiler40US 5,721,804 AHeatech International, Inc. · 1998
- Water heater7US 6,553,948 B12003
- Vapor vacuum heating systems and integration with condensing vacuum boilers7US 8,702,013 B22014
- Vacuum boiler type evaporator6US 5,173,155 ASumitomo Precision Products Co., Ltd. · 1992
- Vacuum sustaining heating systems and methods6US 9,027,846 B22015