CPC technology class · A47

A47C - Chairs

Chairs; sofas; beds. 6,586 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

6,586
US patents granted: #4/9
in A47: 14.4%
A47 class share: +20%
5-yr velocity

The verdict

According to USPTO PatentsView, Chairs ranks #216 of 670 CPC technology areas - 6,586 US patents granted since 2015, with recorded grant volume up 20% over five years.

#216
of 670 CPC technology areas: 6,586
US patents granted, 2015–2025: L&P Property Management
leading assignee (204): +20%
grant velocity, last 5 yrs

How A47C's grant cadence moved

Between 2020–2024, A47C recorded 3,237 grants versus 2,707 in 2015–2019 (+20% equal-window velocity). Across complete years, output peaked in 2020 at 725 grants and bottomed in 2016 at 477 (+52% peak-over-trough). Lead assignee L&P Property Management Company holds 3.1% of the class ; the top three share 7.2%.

Leaderboard read

A47C concentration, lead at 3.1%

L&P Property Management Company leads this historical grant record at 3.1% of A47C - us corporation assignees hold 62% of class grants (2,666 of 4,330). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 3.1%
Top three share: 7.2%
Lead over #2: 62

Where A47C sits inside A47

Among 9 subclasses in A47 (FURNITURE; Domestic Articles OR APPLIANCES; Coffee MILLS; Spice MILLS; Suction Cleaners IN General), A47C ranks #4 and holds 14.4% 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 A47B 7,915 A47G 4,697 A47F 3,660 A47K 3,567 A47D 1,075 A47H 430

Rising assignees active in A47C

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 · 15 in A47C
#2 Adient US LLC 53x 0 → 53 company-wide · 5 in A47C
#3 Dongguan Hongyu Plastic Co., Ltd. 26x 1 → 26 company-wide · 13 in A47C
#4 Bambino Prezioso Switzerland 23x 2 → 45 company-wide · 9 in A47C
#5 Archem Inc. 21x 0 → 21 company-wide · 7 in A47C

A47C grants by year, peak 2020 (725)

US utility-patent grants per year in A47C, 2015–2025 - recent five years are up 20% versus 2015–2019.

L&P Property…

204
Steelcase

142
Sleep Number

130
Hill-rom Services

117
Ts Tech

98
Dreamwell

87
Bedgear

56
Stryker

54
Paramount Bed

54
Lear

48
Inno-sports

47
Tachi-s

45

What this shows L&P Property… is the most active filer in A47C, holding 204 of the 6,586 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 A47C
Rank	Company	Patents in A47C
#1	L&P Property Management Company	204
#2	Steelcase Inc.	142
#3	Sleep Number Corporation	130
#4	Hill-Rom Services, Inc.	117
#5	TS Tech Co., Ltd.	98
#6	Dreamwell, Ltd.	87
#7	Bedgear, LLC	56
#8	Stryker Corporation	54
#9	Paramount BED Co., Ltd.	54
#10	Lear Corporation	48
#11	Inno-Sports Co., Ltd.	47
#12	Tachi-s Co., Ltd.	45
#13	Regalo International, LLC	45
#14	La-Z-Boy Incorporated	45
#15	Ashley Furniture Industries, LLC	40
#16	Toyota Boshoku Kabushiki Kaisha	39
#17	B/E Aerospace, Inc.	37
#18	Zinus Inc.	34
#19	New-Tec Integration (Xiamen) Co., Ltd.	31
#20	Sealy Technology LLC	31

Footprint here vs. claim strategy

Each dot is a leading A47C 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 A47C assignees by class footprint. Bubble size = patents in A47C. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near A47C's 6,586-grant footprint

Nationwide nearest neighbors for A47C (#216 of 670 by volume ; lead share 3.1%) - not the A47 parent-class siblings above.

Nearest by grant volume

A61G 6,566 F21W 6,556 F04C 6,508 C11D 6,504

Nearest by lead-assignee share

C08L 3.1% E01D 3.1% A47J 3.1% F21Y 3.1%

Questions about A47C

Which company holds the most patents in A47C?

L&P Property Management Company leads A47C with 204 patents (3.1% of the subclass). By PatentsView assignee type, us corporations account for 62% of class grants.

Which A47C assignees grew fastest recently?

Among assignees with ≥5 grants in A47C, MillerKnoll, Inc. shows the highest company-wide grant multiple (85x: 0 grants in 2019–2021 → 85 in 2022–2024) while holding 15 patents in this subclass. Growth is company-wide, not class-only.

How does A47C compare inside parent class A47?

Inside A47 (FURNITURE; Domestic Articles OR APPLIANCES; Coffee MILLS; Spice MILLS; Suction Cleaners IN General), A47C ranks #4 of 9 subclasses by grant volume and holds 14.4% of the parent class total. The largest sibling is A47L (9,460 grants).

What to do with this data

A47C in context - here's where to go next.

L&P Property Management Company leads A47C with 204 grants in this class. See full portfolio
A47C ranks #216 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 - A47C figures are USPTO PatentsView granted-utility totals for this subclass (6,586 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.