CPC technology class · D05

D05B - Sewing

Sewing. 989 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

989
US patents granted: #1/3
in D05: 54.9%
D05 class share: +1%
5-yr velocity

The verdict

According to USPTO PatentsView, Sewing ranks #459 of 670 CPC technology areas - 989 US patents granted since 2015, with recorded grant volume up 1% over five years.

#459
of 670 CPC technology areas: 989
US patents granted, 2015–2025: Brother Kogyo
leading assignee (164): +1%
grant velocity, last 5 yrs

How D05B's grant cadence moved

Between 2020–2024, D05B recorded 454 grants versus 451 in 2015–2019 (+1% equal-window velocity). Across complete years, output peaked in 2020 at 106 grants and bottomed in 2022 at 78 (+36% peak-over-trough). Lead assignee Brother Kogyo Kabushiki Kaisha holds 16.6% of the class ; the top three share 30.8%.

Leaderboard read

D05B concentration, lead at 16.6%

Brother Kogyo Kabushiki Kaisha leads this historical grant record at 16.6% of D05B - foreign corporation assignees hold 67% of class grants (461 of 684). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 16.6%
Top three share: 30.8%
Lead over #2: 65

Where D05B sits inside D05

Among 3 subclasses in D05 (SEWING; EMBROIDERING; Tufting), D05B ranks #1 and holds 54.9% of the parent class's 1,800 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

D05C 545 D05D 266

Rising assignees active in D05B

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 Janome Corporation 21x 0 → 21 company-wide · 19 in D05B
#2 Singer Sourcing Limited LLC 10x 0 → 10 company-wide · 10 in D05B
#3 Gracewood Management, Inc. 9.00x 1 → 9 company-wide · 17 in D05B
#4 CreateMe Technologies Inc. 8.38x 8 → 67 company-wide · 8 in D05B
#5 Tism Co., Ltd. 3.00x 0 → 3 company-wide · 6 in D05B

D05B grants by year, peak 2020 (106)

US utility-patent grants per year in D05B, 2015–2025 - recent five years are up 1% versus 2015–2019.

Brother Kogyo

164
Janome Sewing Machine

99
Juki

42
Abm International

23
Softwear Automation

20
Inteva Products

19
Janome

19
Gracewood Management

17
L&P Property…

13
Warrior Sports

13
Edwards Lifesciences

12
Handi Quilter

12

What this shows Brother Kogyo is the most active filer in D05B, holding 164 of the 989 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 D05B
Rank	Company	Patents in D05B
#1	Brother Kogyo Kabushiki Kaisha	164
#2	Janome Sewing Machine Co., Ltd.	99
#3	Juki Corporation	42
#4	ABM International, Inc.	23
#5	Softwear Automation Inc.	20
#6	Inteva Products, LLC	19
#7	Janome Corporation	19
#8	Gracewood Management, Inc.	17
#9	L&P Property Management Company	13
#10	Warrior Sports, Inc.	13
#11	Edwards Lifesciences Corporation	12
#12	Handi Quilter, Inc.	12
#13	Clover MFG. Co., Ltd.	11
#14	Suzuki Manufacturing, Ltd.	11
#15	Singer Sourcing Limited LLC	10
#16	Bernina International AG	10
#17	Zeng Hsing Industrial Co., Ltd.	10
#18	Tela Bio, Inc.	9
#19	CreateMe Technologies Inc.	8
#20	Card-Monroe Corp.	8

Footprint here vs. claim strategy

Each dot is a leading D05B 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 D05B assignees by class footprint. Bubble size = patents in D05B. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near D05B's 989-grant footprint

Nationwide nearest neighbors for D05B (#459 of 670 by volume ; lead share 16.6%) - not the D05 parent-class siblings above.

Nearest by grant volume

A21D 993 E01B 981 A41B 979 C01D 976

Nearest by lead-assignee share

H01T 16.7% F25C 16.4% C03C 16.8% A24B 16.3%

Questions about D05B

Which company holds the most patents in D05B?

Brother Kogyo Kabushiki Kaisha leads D05B with 164 patents (16.6% of the subclass). By PatentsView assignee type, foreign corporations account for 67% of class grants.

Which D05B assignees grew fastest recently?

Among assignees with ≥5 grants in D05B, Janome Corporation shows the highest company-wide grant multiple (21x: 0 grants in 2019–2021 → 21 in 2022–2024) while holding 19 patents in this subclass. Growth is company-wide, not class-only.

How does D05B compare inside parent class D05?

Inside D05 (SEWING; EMBROIDERING; Tufting), D05B ranks #1 of 3 subclasses by grant volume and holds 54.9% of the parent class total. The largest sibling is D05C (545 grants).

What to do with this data

D05B in context - here's where to go next.

Brother Kogyo Kabushiki Kaisha leads D05B with 164 grants in this class. See full portfolio
D05B ranks #459 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class D05, the largest sibling subclass is D05C with 545 grants. Explore D05C

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

Methodology - D05B figures are USPTO PatentsView granted-utility totals for this subclass (989 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.