F25D
Refrigerators
Official title: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)
F25D (Refrigerators) appears on 20,515 US grants and 20,819 published applications in this corpus.
Search patents in F25D- Granted patents
- 20,515
- Published applications
- 20,819
- Assignees
- 5,093
- Inventors
- 30,377
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 126 | 0 |
| 1977 | 125 | 0 |
| 1978 | 132 | 0 |
| 1979 | 106 | 0 |
| 1980 | 151 | 0 |
| 1981 | 183 | 0 |
| 1982 | 165 | 0 |
| 1983 | 147 | 0 |
| 1984 | 161 | 0 |
| 1985 | 174 | 0 |
| 1986 | 155 | 0 |
| 1987 | 178 | 0 |
| 1988 | 208 | 0 |
| 1989 | 246 | 0 |
| 1990 | 263 | 0 |
| 1991 | 227 | 0 |
| 1992 | 212 | 0 |
| 1993 | 272 | 0 |
| 1994 | 254 | 0 |
| 1995 | 271 | 0 |
| 1996 | 262 | 0 |
| 1997 | 213 | 0 |
| 1998 | 330 | 0 |
| 1999 | 396 | 0 |
| 2000 | 363 | 0 |
| 2001 | 355 | 88 |
| 2002 | 405 | 294 |
| 2003 | 362 | 416 |
| 2004 | 323 | 521 |
| 2005 | 274 | 620 |
| 2006 | 348 | 675 |
| 2007 | 322 | 604 |
| 2008 | 231 | 698 |
| 2009 | 256 | 711 |
| 2010 | 356 | 820 |
| 2011 | 371 | 692 |
| 2012 | 391 | 641 |
| 2013 | 500 | 742 |
| 2014 | 503 | 820 |
| 2015 | 615 | 909 |
| 2016 | 642 | 922 |
| 2017 | 773 | 1048 |
| 2018 | 839 | 1228 |
| 2019 | 1022 | 1171 |
| 2020 | 1072 | 1225 |
| 2021 | 942 | 1140 |
| 2022 | 934 | 1105 |
| 2023 | 892 | 1102 |
| 2024 | 927 | 1033 |
| 2025 | 937 | 940 |
| 2026 | 603 | 654 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F25D 23/00General constructional features7,311
- F25D 2400/00General features of, or devices for refrigerators, cold rooms, ice-boxes, or forIndexing code4,583
- F25D 17/00Arrangements for circulating cooling fluids3,772
- F25D 3/00Devices using other cold materials3,287
- F25D 29/00Arrangement or mounting of control or safety devices3,133
- F25D 11/00Self-contained movable devices2,772
- F25D 25/00Charging, supporting, and discharging the articles to be cooled2,594
- F25D 2700/00Means for sensing or measuringIndexing code2,480
All 30 main groupsShow fewer
- F25D 21/00Defrosting2,342
- F25D 2323/00General constructional features not provided for in other groups of this subclassIndexing code2,269
- F25D 2317/00Details or arrangements for circulating cooling fluidsIndexing code2,192
- F25D 2331/00Details or arrangements of other cooling or freezing apparatus not provided forIndexing code2,161
- F25D 31/00Refrigerators: other cooling or freezing apparatus1,807
- F25D 2303/00Details of devices using other cold materialsIndexing code1,403
- F25D 2201/00InsulationIndexing code1,247
- F25D 19/00Arrangement or mounting of refrigeration units with respect to devices or objects1,220
- F25D 2500/00Problems to be solvedIndexing code1,027
- F25D 27/00Lighting arrangements854
- F25D 13/00Stationary devices550
- F25D 16/00Devices using a combination of a cooling mode associated with refrigerating machinery497
- F25D 2325/00Charging, supporting or discharging the articles to be cooled, not provided forIndexing code486
- F25D 2600/00Control issuesIndexing code451
- F25D 2321/00Details or arrangements for defrostingIndexing code324
- F25D 15/00Devices not covered by group f25d11/00 or f25d13/00240
- F25D 5/00Devices using endothermic chemical reactions188
- F25D 2327/00Lighting arrangements not provided for in other groups of this subclassIndexing code144
- F25D 1/00Devices using naturally cold air or cold water109
- F25D 7/00Devices using evaporation effects without recovery of the vapour90
- F25D 2300/00Special arrangements or features for refrigeratorsIndexing code49
- F25D 9/00Devices not associated with refrigerating machinery and not covered by groups f25d1/0044
Recent patents
- Method of controlling the environment in a grow room6 Oct 2026US 12,751,465 B2JDS Consulting
- Refrigerating or warming apparatus, and vehicle6 Oct 2026US 12,752,591 B2LG Electronics Inc.
- Standing tote with stacking or sliding lid6 Oct 2026US 12,752,964 B1Packit, LLC
- Cooling system of a cold platform at cryogenic temperature and method thereof6 Oct 2026US 12,753,951 B2
- Refrigerator appliance chilled air system6 Oct 2026US 12,753,964 B2Haier US Appliance Solutions, Inc.
- Door-in-door refrigerator8 Oct 2026US 2026/0308959 A1Haier Smart Home Co., Ltd.
- Cryogenic auger assembly8 Oct 2026US 2026/0309397 A1
- Refrigerator8 Oct 2026US 2026/0309398 A1LG Electronics Inc.
- Refrigerator appliance with liquid drain assembly8 Oct 2026US 2026/0309399 A1Haier US Appliance Solutions, Inc.
- Grille assembly for a refrigerator appliance8 Oct 2026US 2026/0309400 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Automatic liquid dispenser and refrigerator with the same865US 7,661,448 B2LG Electronics Inc. · 2010
- Refrigeration monitor unit797US 6,453,687 B2Robertshaw Controls Company · 2002
- Computing infrastructure672US 8,706,914 B22014
- Refrigerator and defrosting heater472US 6,684,659 B1Matsushita Refrigeration Company · 2004
- Thermally insulated container470US 6,244,458 B1Thermo Solutions, Inc. · 2001