PlainPatent

CPC technology class · F25

F25D - Refrigerators

Refrigerators; cold rooms; ice-boxes; cooling or freezing apparatus not otherwise provided for. 8,866 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

8,866
US patents granted
F25
Parent CPC class
20
Active assignees
+43%
5-yr velocity

The verdict

Refrigerators ranks #181 of 670 CPC technology areas - 8,866 US patents granted since 2015, with filing up 43% over five years.

#181
of 670 CPC technology areas
8,866
US patents granted, 2015–2025
Lg
leading assignee (1,512)
+43%
filing velocity, last 5 yrs
Top assignee: LG Electronics Inc. (1,512 patents)

CPC subclass F25D - REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR - covers 8,866 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class F25 (REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES). See our CPC classification guide for how the system works.

The competitive landscape in F25D is shaped by 20 distinct companies actively filing in this space. LG Electronics Inc. leads with 1,512 patents, followed by Whirlpool Corporation at 855 grants and BSH Hausgeräte Gmbh at 355.

Filing activity in F25D is up 43% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is F25D innovation accelerating?

US utility-patent grants per year in F25D, 2015–2025 - recent five years are up 43% versus 2015–2019.

5006007008009001,000 20152016201720182019202020212022202320242025 650

Who leads F25D?

The 12 most active assignees in REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR - wider bars mean more grants

patents

What this shows Lg is the most active filer in F25D, holding 1,512 of the 8,866 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass F25D
Rank Company Patents in F25D
#1 LG Electronics Inc. 1,512
#2 Whirlpool Corporation 855
#3 BSH Hausgeräte Gmbh 355
#4 Haier US Appliance Solutions, Inc. 331
#5 Electrolux HOME Products, Inc. 170
#6 Carrier Corporation 164
#7 Haier Smart HOME Co., Ltd. 121
#8 Qingdao Haier Refrigerator Co., Ltd. 94
#9 Midea Group Co., Ltd. 83
#10 Qingdao Haier Joint Stock Co., Ltd. 81
#11 Thermo KING Llc 68
#12 Dongbu Daewoo Electronics Corporation 57
#13 Hefei Hualing Co., Ltd. 48
#14 Hefei Midea Refrigerator Co., Ltd. 46
#15 Lennox Industries Inc. 36
#16 Dometic Sweden AB 35
#17 B/e Aerospace, Inc. 34
#18 Ember Technologies, Inc. 34
#19 Arcelik Anonim Sirketi 33
#20 YETI Coolers, Llc 32

About This Class

CPC subclass F25D belongs to class F25.

8,866 patents were granted in this class between 2015 and 2025.

20 companies actively patent in this space.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

← All Technology Classes Technology Rankings →

Footprint here vs. claim strategy

Each dot is a leading F25D assignee, placed by how many patents it holds in this class (horizontal) against its company-wide average claims per patent (vertical) - a read on whether the class is led by broad-but-shallow filers or focused deep-claim players.

Top 14 F25D assignees by class footprint. Bubble size = patents in F25D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 F25D assignees by class footprint. Bubble size = patents in F25D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 81012141618 -5000500100015002000 Patents in F25D Avg claims / patent (company-wide) LgWhirlpoolBsh HausgeräteHaier Us Appliance So…Electrolux Home Produ…CarrierHaier Smart HomeQingdao Haier Refrige…Midea GroupQingdao Haier Joint S…Thermo KingDongbu DaewooHefei HualingHefei Midea Refrigera…
Top 14 F25D assignees by class footprint. Bubble size = patents in F25D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class F25D?
CPC subclass F25D covers REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR. It belongs to CPC class F25 (REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES), with 8,866 US utility patents granted since 2015.
How many patents have been filed in F25D?
8,866 US utility patents were granted in CPC subclass F25D between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in F25D?
LG Electronics Inc. leads F25D with 1,512 patents, making it the most active assignee in this technology area.
How is patent data for F25D collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., F25) is a broad technology category. Subclasses like F25D provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Every figure on PlainPatent is rendered directly from USPTO source data, no number is typed in by an editor. This page draws directly on USPTO source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.