F24
Heating
Official title: Heating; ranges; ventilating
F24 (Heating) appears on 62,147 US grants and 63,505 published applications in this corpus.
Search patents in F24- Granted patents
- 62,147
- Published applications
- 63,505
- Assignees
- 17,892
- Inventors
- 97,326
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 582 | 0 |
| 1977 | 745 | 0 |
| 1978 | 858 | 0 |
| 1979 | 702 | 0 |
| 1980 | 889 | 0 |
| 1981 | 1073 | 0 |
| 1982 | 841 | 0 |
| 1983 | 793 | 0 |
| 1984 | 857 | 0 |
| 1985 | 834 | 0 |
| 1986 | 662 | 0 |
| 1987 | 698 | 0 |
| 1988 | 621 | 0 |
| 1989 | 698 | 0 |
| 1990 | 713 | 0 |
| 1991 | 667 | 0 |
| 1992 | 637 | 0 |
| 1993 | 630 | 0 |
| 1994 | 749 | 0 |
| 1995 | 624 | 0 |
| 1996 | 640 | 0 |
| 1997 | 659 | 0 |
| 1998 | 833 | 0 |
| 1999 | 922 | 0 |
| 2000 | 971 | 0 |
| 2001 | 930 | 221 |
| 2002 | 846 | 708 |
| 2003 | 825 | 978 |
| 2004 | 805 | 1284 |
| 2005 | 743 | 1402 |
| 2006 | 811 | 1441 |
| 2007 | 648 | 1469 |
| 2008 | 608 | 1727 |
| 2009 | 577 | 1880 |
| 2010 | 884 | 2352 |
| 2011 | 903 | 2462 |
| 2012 | 1202 | 2581 |
| 2013 | 1360 | 2643 |
| 2014 | 1652 | 2865 |
| 2015 | 1841 | 3087 |
| 2016 | 1984 | 2947 |
| 2017 | 2339 | 3038 |
| 2018 | 2473 | 3163 |
| 2019 | 2904 | 3489 |
| 2020 | 2944 | 3571 |
| 2021 | 2750 | 3814 |
| 2022 | 2823 | 3792 |
| 2023 | 2914 | 3560 |
| 2024 | 2895 | 3646 |
| 2025 | 2741 | 3154 |
| 2026 | 1847 | 2231 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- F24FAir-conditioning29,402
- F24SSolar heat collectors10,453
- F24CDomestic stoves or ranges9,484
- F24HFluid heaters7,686
- F24DDomestic- or space-heating systems5,442
- F24BDomestic stoves or ranges for solid fuels2,398
- F24TGeothermal collectors1,133
- F24VCollection, production or use of heat not otherwise provided for942
Recent patents
- Fuel grate for a grill6 Oct 2026US 12,751,575 B2
- Portable breathing air filtering device and method6 Oct 2026US 12,752,231 B2King Abdullah University of Science and Technology
- Fine particles space placement control system, fine particles space placement control method, and computer-readable storage medium6 Oct 2026US 12,752,295 B2
- Hot flushing of building water system6 Oct 2026US 12,753,585 B2Magarl, LLC
- Electronic faucet, method of coupling between a source of conditioned water or fluid and a faucet and method for controlling an electronic faucet6 Oct 2026US 12,753,587 B2Gessi S.P.A.
- A method of operating a baking oven and baking oven8 Oct 2026US 2026/0305621 A1E. G. O. Elektro-Geratebau GmbH
- Foldable brazier8 Oct 2026US 2026/0305872 A1Ningbo Hooya Imp. & Exp. Group Co., Ltd.
- Airframe system and method of controlling airflow8 Oct 2026US 2026/0306210 A1SLD Technology, Inc.
- Air Treatment System8 Oct 2026US 2026/0307008 A1Universiteit Antwerpen
- Heating apparatus8 Oct 2026US 2026/0307461 A1Aisan Kogyo Kabushiki Kaisha
Most cited
By later US patents
- HVAC actuator with automatic end stop recalibration963US 9,641,122 B2Johnson Controls Technology Company · 2017
- Precision illumination methods and systems780US 6,459,919 B1Color Kinetics Incorporated · 2002
- Electronic atomization cigarette779US 7,832,410 B2Best Partners Worldwide Limited · 2010
- Environmental condition control and energy management system and method768US 6,216,956 B1Tocom, Inc. · 2001
- Energy management and home automation system750US 5,544,036 A1996