PlainPatent

CPC technology class · A47

A47L - Domestic Washing OR Cleaning

Domestic washing or cleaning ; suction cleaners in general. 9,460 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

9,460
US patents granted
A47
Parent CPC class
20
Active assignees
+42%
5-yr velocity

The verdict

Domestic Washing OR Cleaning ranks #175 of 670 CPC technology areas - 9,460 US patents granted since 2015, with filing up 42% over five years.

#175
of 670 CPC technology areas
9,460
US patents granted, 2015–2025
Lg
leading assignee (978)
+42%
filing velocity, last 5 yrs
Top assignee: LG Electronics Inc. (978 patents)

CPC subclass A47L - DOMESTIC WASHING OR CLEANING ; SUCTION CLEANERS IN GENERAL - covers 9,460 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class A47 (FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL). See our CPC classification guide for how the system works.

The competitive landscape in A47L is shaped by 20 distinct companies actively filing in this space. LG Electronics Inc. leads with 978 patents, followed by Whirlpool Corporation at 471 grants and Omachron Intellectual Property Inc. at 421.

Filing activity in A47L is up 42% 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 A47L innovation accelerating?

US utility-patent grants per year in A47L, 2015–2025 - recent five years are up 42% versus 2015–2019.

6007008009001,0001,100 20152016201720182019202020212022202320242025 651

Who leads A47L?

The 12 most active assignees in DOMESTIC WASHING OR CLEANING ; SUCTION CLEANERS IN GENERAL - wider bars mean more grants

patents

What this shows Lg is the most active filer in A47L, holding 978 of the 9,460 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 A47L
Rank Company Patents in A47L
#1 LG Electronics Inc. 978
#2 Whirlpool Corporation 471
#3 Omachron Intellectual Property Inc. 421
#4 Irobot Corporation 316
#5 Haier US Appliance Solutions, Inc. 260
#6 BSH Hausgeräte Gmbh 239
#7 Bissell Inc. 220
#8 Sharkninja Operating Llc 178
#9 Dyson Technology Limited 170
#10 The Procter & Gamble Company 155
#11 Midea Group Co., Ltd. 134
#12 Bissell Homecare, Inc. 132
#13 Techtronic Floor Care Technology Limited 120
#14 Ecolab USA Inc. 106
#15 Illinois TOOL Works Inc. 93
#16 Vorwerk & Co. Interholding Gmbh 92
#17 AI Incorporated 78
#18 Electrolux Appliances Aktiebolag 70
#19 Makita Corporation 69
#20 Emerson Electric Co. 69

About This Class

CPC subclass A47L belongs to class A47.

9,460 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 A47L 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 A47L assignees by class footprint. Bubble size = patents in A47L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 A47L assignees by class footprint. Bubble size = patents in A47L. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 020040060080010001200 Patents in A47L Avg claims / patent (company-wide) LgWhirlpoolOmachron Intellectual…irobotHaier Us Appliance So…Bsh HausgeräteBissellSharkninja OperatingDyson TechnologyThe Procter & GambleMidea GroupBissell HomecareTechtronic Floor Care…Ecolab Usa
Top 14 A47L assignees by class footprint. Bubble size = patents in A47L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class A47L?
CPC subclass A47L covers DOMESTIC WASHING OR CLEANING ; SUCTION CLEANERS IN GENERAL. It belongs to CPC class A47 (FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL), with 9,460 US utility patents granted since 2015.
How many patents have been filed in A47L?
9,460 US utility patents were granted in CPC subclass A47L between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in A47L?
LG Electronics Inc. leads A47L with 978 patents, making it the most active assignee in this technology area.
How is patent data for A47L 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., A47) is a broad technology category. Subclasses like A47L 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.