F24F 2221/00
Details or features not otherwise provided for
F24F2221/00 (Details or features not otherwise provided for) appears on 2,795 US grants and 3,457 published applications in this corpus.
Search patents in F24F- Granted patents
- 2,795
- Published applications
- 3,457
- Assignees
- 1,340
- Inventors
- 6,479
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 7 | 0 |
| 1978 | 4 | 0 |
| 1979 | 10 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 13 | 0 |
| 1989 | 19 | 0 |
| 1990 | 19 | 0 |
| 1991 | 13 | 0 |
| 1992 | 18 | 0 |
| 1993 | 31 | 0 |
| 1994 | 54 | 0 |
| 1995 | 23 | 0 |
| 1996 | 24 | 0 |
| 1997 | 35 | 0 |
| 1998 | 17 | 0 |
| 1999 | 26 | 0 |
| 2000 | 36 | 0 |
| 2001 | 45 | 9 |
| 2002 | 53 | 30 |
| 2003 | 42 | 43 |
| 2004 | 45 | 63 |
| 2005 | 33 | 60 |
| 2006 | 33 | 71 |
| 2007 | 32 | 44 |
| 2008 | 24 | 54 |
| 2009 | 17 | 54 |
| 2010 | 22 | 81 |
| 2011 | 21 | 97 |
| 2012 | 38 | 111 |
| 2013 | 46 | 80 |
| 2014 | 44 | 97 |
| 2015 | 68 | 105 |
| 2016 | 78 | 112 |
| 2017 | 111 | 189 |
| 2018 | 112 | 212 |
| 2019 | 166 | 249 |
| 2020 | 210 | 244 |
| 2021 | 181 | 300 |
| 2022 | 184 | 284 |
| 2023 | 216 | 275 |
| 2024 | 224 | 250 |
| 2025 | 212 | 194 |
| 2026 | 116 | 149 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F24F 2221/12TransportableIndexing code422
- F24F 2221/54Heating and cooling, simultaneously or alternativelyIndexing code337
- F24F 2221/14Mounted on the ceilingIndexing code301
- F24F 2221/22Cleaning ducts or apparatusIndexing code236
- F24F 2221/36ModulesIndexing code189
- F24F 2221/38Personalised air distributionIndexing code180
- F24F 2221/34HeaterIndexing code177
- F24F 2221/02Combined with lighting fixturesIndexing code144
All 26 subgroupsShow fewer
- F24F 2221/18Combined with domestic apparatusIndexing code120
- F24F 2221/52Weather protecting meansIndexing code116
- F24F 2221/20Mounted in or close to a windowIndexing code105
- F24F 2221/16Mounted on the roofIndexing code104
- F24F 2221/40Hvac with raised floorsIndexing code93
- F24F 2221/32Preventing human errors during the installation, use or maintenanceIndexing code91
- F24F 2221/28Details or features not otherwise provided for: using the coanda effectIndexing code87
- F24F 2221/17Mounted in a wallIndexing code81
- F24F 2221/26Improving the aesthetic appearanceIndexing code79
- F24F 2221/44Protection from terrorism or theftIndexing code60
- F24F 2221/10Combined with, or integrated in, furnitureIndexing code50
- F24F 2221/56Cooling being a secondary aspectIndexing code42
- F24F 2221/42Mobile autonomous air conditionerIndexing code39
- F24F 2221/46Air flow forming a vortexIndexing code36
- F24F 2221/30Comprising fireproof materialIndexing code33
- F24F 2221/50Hvac for high buildingsIndexing code33
- F24F 2221/08Installation or apparatus for use in sport hallsIndexing code16
- F24F 2221/48Hvac for a wine cellarIndexing code14
Recent patents
- Automated techniques for HVAC system commissioning6 Oct 2026US 12,753,939 B2Belimo Holding AG
- Circulating air module and circulating air module system29 Sep 2026US 12,747,870 B2Envola GmbH
- Indoor unit of air conditioner29 Sep 2026US 12,747,871 B2Fujitsu General Limited
- Portable misting cooler apparatus and system29 Sep 2026US 12,747,875 B2JS2 Enterprises, LLC
- Air conditioning system, floor blowing air conditioner, control method, and storage medium29 Sep 2026US 12,747,887 B2Carrier Japan Corporation
- Method of enhancing performance of a porous evaporative media8 Oct 2026US 2026/0308483 A1Ecolab USA Inc.
- Cooling system, a semiconductor apparatus including the same, and a method of replacing a filter using the same8 Oct 2026US 2026/0309362 A1Samsung Electronics Co., Ltd.
- Thermal management system with hybrid circuit for energy storage device in air conditioning system1 Oct 2026US 2026/0298487 A1Carrier Corporation
- System for high efficiency portable air cooling24 Sep 2026US 2026/0287188 A1
- System and method for heating and cooling24 Sep 2026US 2026/0287196 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Home cleaning robot729US 6,459,955 B1The Procter & Gamble Company · 2002
- Smart cooling of data centers277US 6,574,104 B2Hewlett-Packard Development Company, L. P. · 2003
- Data center cooling system275US 6,374,627 B12002
- Wireless communication system for air distribution system257US 5,390,206 AAmerican Standard Inc. · 1995
- Air conditioning method in machine room having forced air-cooling equipment housed therein247US 5,718,628 ANippon Telegraph and Telephone Corporation · 1998