F24D 2220/00
Components of central heating installations excluding heat sources
F24D2220/00 (Components of central heating installations excluding heat sources) appears on 683 US grants and 1,029 published applications in this corpus.
Search patents in F24D- Granted patents
- 683
- Published applications
- 1,029
- Assignees
- 444
- Inventors
- 1,754
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 4 | 3 |
| 2004 | 1 | 5 |
| 2005 | 2 | 5 |
| 2006 | 5 | 2 |
| 2007 | 1 | 4 |
| 2008 | 2 | 4 |
| 2009 | 3 | 22 |
| 2010 | 9 | 27 |
| 2011 | 3 | 38 |
| 2012 | 13 | 38 |
| 2013 | 7 | 48 |
| 2014 | 21 | 41 |
| 2015 | 28 | 70 |
| 2016 | 33 | 52 |
| 2017 | 49 | 51 |
| 2018 | 45 | 87 |
| 2019 | 60 | 58 |
| 2020 | 60 | 84 |
| 2021 | 63 | 73 |
| 2022 | 54 | 85 |
| 2023 | 55 | 41 |
| 2024 | 70 | 91 |
| 2025 | 51 | 50 |
| 2026 | 25 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F24D 2220/04SensorsIndexing code313
- F24D 2220/02Fluid distribution meansIndexing code263
- F24D 2220/08Storage tanksIndexing code108
- F24D 2220/06Heat exchangersIndexing code70
- F24D 2220/20Heat consumersIndexing code69
- F24D 2220/10Heat storage materialsIndexing code57
- F24D 2220/006Parts of a building integrally forming part of heating systemsIndexing code15
- F24D 2220/07Heat pipesIndexing code11
All 9 subgroupsShow fewer
Recent patents
- Storage water heater equipped with at least one auxiliary heater and a circulator29 Sep 2026US 12,747,869 B2
- Cold climate heat pump system with energy storage11 Aug 2026US 12,704,328 B2Trane International Inc.
- Water heaters with computing elements as a network11 Aug 2026US 12,704,888 B2
- Ceiling-mounted radiating elements28 Jul 2026US 12,693,034 B2Kermi GmbH
- Energy storage arrangement and installations14 Jul 2026US 12,680,730 B2Octopus Energy Heating Limited
- Energy buffering using a heat pump8 Oct 2026US 2026/0309339 A1Mixergy Limited
- Energy efficient enclosure temperature regulation system17 Sep 2026US 2026/0276213 A1Ceres Greenhouse Solutions LLC
- Heating Circuit and Degassing Device17 Sep 2026US 2026/0276214 A1Viessmann Holding International GmbH
- Thermal fluid conveyance manifold and operation thereof17 Sep 2026US 2026/0276215 A1
- Heat pump device10 Sep 2026US 2026/0266475 A1Fujitsu General Limited
Most cited
By later US patents
- System and method for controlling temperature and humidity132US 6,199,388 B1Semco LLC · 2001
- Domestic electric energy control104US 5,956,462 AAquabeat Pty Ltd. · 1999
- Geothermal storage heating and cooling system91US 4,375,831 A1983
- Programmable thermostat to reduce bacterial proliferation to prevent legionellosis65US 5,808,277 A1998
- Installation of thermostat powered by rechargeable battery56US 9,268,344 B2Google Inc. · 2016