F24D 3/1008
Expansion tanks
Official title: {expansion tanks}
F24D3/1008 (Expansion tanks) appears on 101 US grants and 109 published applications in this corpus.
Search patents in F24D- Granted patents
- 101
- Published applications
- 109
- Assignees
- 64
- Inventors
- 203
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 3 | 0 |
| 2004 | 1 | 4 |
| 2005 | 0 | 5 |
| 2006 | 2 | 2 |
| 2007 | 2 | 1 |
| 2008 | 3 | 6 |
| 2009 | 0 | 3 |
| 2010 | 1 | 4 |
| 2011 | 0 | 4 |
| 2012 | 1 | 4 |
| 2013 | 3 | 5 |
| 2014 | 1 | 5 |
| 2015 | 3 | 4 |
| 2016 | 1 | 1 |
| 2017 | 4 | 7 |
| 2018 | 5 | 9 |
| 2019 | 10 | 5 |
| 2020 | 3 | 6 |
| 2021 | 5 | 7 |
| 2022 | 2 | 2 |
| 2023 | 3 | 7 |
| 2024 | 7 | 9 |
| 2025 | 6 | 4 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydronic expansion tank assembly10 Jun 2025US 12,326,264 B2NIBCO Inc.
- Hydro-pneumatic pressure vessel and diaphragm assembly method27 May 2025US 12,313,090 B2Flexcon Industries
- Composite tank20 May 2025US 12,305,809 B2Armtrol Licensing Inc.
- Heat pump and control method therefor8 Apr 2025US 12,270,580 B2LG Electronics Inc.
- Hydronic expansion tank assembly28 Jan 2025US 12,209,758 B2NIBCO Inc.
- Expansion tank capable of preventing internal leakage1 Oct 2026US 2026/0298482 A1
- Expansion tank with monitoring system4 Jun 2026US 2026/0153247 A1
- System and method for hydronic distribution with submersible pumps in an unpressurized tank30 Apr 2026US 2026/0117988 A1Hunt Utilities Group LLC
- Booster box standalone feed system26 Mar 2026US 2026/0085844 A1Neutrasafe LLC
- Expansion tank with heat accumulation16 Oct 2025US 2025/0321021 A1Zilmet S.P.A.
Most cited
By later US patents
- Expansion tank diaphragm assembly50US 3,931,834 AThe Goodyear Tire & Rubber Company · 1976
- Process and apparatus for recycling water in a hot water supply system50US 6,588,377 B12003
- Hydrothermal stabilizer and expansion tank system43US 5,584,316 AACT Distribution, Inc. · 1996
- Expansion tank38US 5,386,925 AAmtrol Inc. · 1995
- Hydrothermal stabilizer35US 5,586,572 AACT Distribution, Inc. · 1996