CPC technology class · A47

A47B - Tables

Tables; desks; office furniture; cabinets; drawers; general details of furniture. 7,915 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

7,915
US patents granted: #3/9
in A47: 17.3%
A47 class share: +1%
5-yr velocity

The verdict

According to USPTO PatentsView, Tables ranks #196 of 670 CPC technology areas - 7,915 US patents granted since 2015, with recorded grant volume up 1% over five years.

#196
of 670 CPC technology areas: 7,915
US patents granted, 2015–2025: King Slide Works
leading assignee (271): +1%
grant velocity, last 5 yrs

How A47B's grant cadence moved

Between 2020–2024, A47B recorded 3,529 grants versus 3,491 in 2015–2019 (+1% equal-window velocity). Across complete years, output peaked in 2019 at 854 grants and bottomed in 2015 at 585 (+46% peak-over-trough). Lead assignee King Slide Technology Co., Ltd. holds 3.4% of the class ; the top three share 8.5%.

Leaderboard read

A47B concentration, lead at 3.4%

King Slide Technology Co., Ltd. leads this historical grant record at 3.4% of A47B - us corporation assignees hold 53% of class grants (2,640 of 4,967). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 3.4%
Top three share: 8.5%
Lead over #2: 0

Where A47B sits inside A47

Among 9 subclasses in A47 (FURNITURE; Domestic Articles OR APPLIANCES; Coffee MILLS; Spice MILLS; Suction Cleaners IN General), A47B ranks #3 and holds 17.3% of the parent class's 45,744 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

A47L 9,460 A47J 8,354 A47C 6,586 A47G 4,697 A47F 3,660 A47K 3,567 A47D 1,075 A47H 430

Rising assignees active in A47B

Company-wide grant multiples (2022–2024 vs 2019–2021) among assignees with ≥5 patents in this subclass. Growth is company-wide; class patent counts are subclass-specific.

#1 MillerKnoll, Inc. 85x 0 → 85 company-wide · 9 in A47B
#2 VÄLINGE Innovation AB 47x 0 → 47 company-wide · 18 in A47B
#3 Qingdao Haier Refrigerator Co., Ltd. 32x 2 → 63 company-wide · 8 in A47B
#4 Haier Smart Home Co., Ltd. 14x 14 → 199 company-wide · 16 in A47B
#5 Driflower, LLC 13x 0 → 13 company-wide · 5 in A47B

A47B grants by year, peak 2019 (854)

US utility-patent grants per year in A47B, 2015–2025 - recent five years are up 1% versus 2015–2019.

King Slide Technology

271
King Slide Works

271
Steelcase

133
Whirlpool

127
Julius Blum

127
Rtc Industries

86
Ergotron

72
Fasteners for Retail

69
Valinge Innovation Ab

58
Grass

55
Bsh Hausgeräte

54
Paul Hettich & Kg

51

What this shows King Slide Works is the most active filer in A47B, holding 271 of the 7,915 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

View data table

Top patent holders in CPC subclass A47B
Rank	Company	Patents in A47B
#1	King Slide Technology Co., Ltd.	271
#2	King Slide Works Co., Ltd.	271
#3	Steelcase Inc.	133
#4	Whirlpool Corporation	127
#5	Julius Blum GMBH	127
#6	RTC Industries, Inc.	86
#7	Ergotron, Inc.	72
#8	Fasteners for Retail, Inc.	69
#9	Valinge Innovation AB	58
#10	Grass GmbH	55
#11	BSH Hausgeräte GmbH	54
#12	Paul Hettich GmbH & Co. KG	51
#13	Kohler Co.	46
#14	Target Brands, Inc.	46
#15	Lifetime Products, Inc.	46
#16	Inno-Sports Co., Ltd.	43
#17	Haier US Appliance Solutions, Inc.	40
#18	B/E Aerospace, Inc.	36
#19	Electrolux Home Products, Inc.	36
#20	New-Tec Integration (Xiamen) Co., Ltd.	32

Footprint here vs. claim strategy

Each dot is a leading A47B 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 A47B assignees by class footprint. Bubble size = patents in A47B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near A47B's 7,915-grant footprint

Nationwide nearest neighbors for A47B (#196 of 670 by volume ; lead share 3.4%) - not the A47 parent-class siblings above.

Nearest by grant volume

H04S 7,918 G01P 7,932 E04B 7,959 B60H 7,970

Nearest by lead-assignee share

A23J 3.5% F16J 3.5% F24S 3.4% B29C 3.4%

Questions about A47B

Which company holds the most patents in A47B?

King Slide Works Co., Ltd. leads A47B with 271 patents (3.4% of the subclass). By PatentsView assignee type, us corporations account for 53% of class grants.

Which A47B assignees grew fastest recently?

Among assignees with ≥5 grants in A47B, MillerKnoll, Inc. shows the highest company-wide grant multiple (85x: 0 grants in 2019–2021 → 85 in 2022–2024) while holding 9 patents in this subclass. Growth is company-wide, not class-only.

How does A47B compare inside parent class A47?

Inside A47 (FURNITURE; Domestic Articles OR APPLIANCES; Coffee MILLS; Spice MILLS; Suction Cleaners IN General), A47B ranks #3 of 9 subclasses by grant volume and holds 17.3% of the parent class total. The largest sibling is A47L (9,460 grants).

What to do with this data

A47B in context - here's where to go next.

King Slide Technology Co., Ltd. leads A47B with 271 grants in this class. See full portfolio
A47B ranks #196 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class A47, the largest sibling subclass is A47L with 9,460 grants. Explore A47L

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - A47B figures are USPTO PatentsView granted-utility totals for this subclass (7,915 grants in the tracked window).

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.