CPC technology class · D05

D05D - Indexing Scheme Associated With Subclasses D05b And D05c

Indexing scheme associated with subclasses d05b and d05c, relating to sewing, embroidering and tufting. 266 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

266
US patents granted: #3/3
in D05: 14.8%
D05 class share: +132%
5-yr velocity

The verdict

According to USPTO PatentsView, Indexing Scheme Associated With Subclasses D05b And D05c ranks #589 of 670 CPC technology areas - 266 US patents granted since 2015, with recorded grant volume up 132% over five years.

#589
of 670 CPC technology areas: 266
US patents granted, 2015–2025: Brother Kogyo
leading assignee (53): +132%
grant velocity, last 5 yrs

How D05D's grant cadence moved

Between 2020–2024, D05D recorded 169 grants versus 73 in 2015–2019 (+132% equal-window velocity). Across complete years, output peaked in 2020 at 46 grants and bottomed in 2018 at 9 (+411% peak-over-trough). Lead assignee Brother Kogyo Kabushiki Kaisha holds 19.9% of the class ; the top three share 34.6%.

Leaderboard read

D05D concentration, lead at 19.9%

Brother Kogyo Kabushiki Kaisha leads this historical grant record at 19.9% of D05D - foreign corporation assignees hold 67% of class grants (122 of 181). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 19.9%
Top three share: 34.6%
Lead over #2: 32

Where D05D sits inside D05

Among 3 subclasses in D05 (SEWING; EMBROIDERING; Tufting), D05D ranks #3 and holds 14.8% 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.

D05B 989 D05C 545

Rising assignees active in D05D

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 Tuftco Corporation 5.00x 2 → 10 company-wide · 5 in D05D
#2 Levi Strauss & Co. 2.85x 20 → 57 company-wide · 10 in D05D
#3 Juki Corporation 0.95x 21 → 20 company-wide · 13 in D05D
#4 Brother Kogyo Kabushiki Kaisha 0.92x 2,117 → 1,952 company-wide · 53 in D05D
#5 Under Armour, Inc. 0.73x 204 → 149 company-wide · 18 in D05D

D05D grants by year, peak 2020 (46)

US utility-patent grants per year in D05D, 2015–2025 - recent five years are up 132% versus 2015–2019.

Brother Kogyo

53
Janome Sewing Machine

21
Under Armour

18
Juki

13
Levi Strauss &

10
Tuftco

5
Zeng Hsing Industrial

5
Abm International

4
Suzuki Manufacturing

4
Bernina International

4
Groz-beckert Kg

3
Gammill

3

What this shows Brother Kogyo is the most active filer in D05D, holding 53 of the 266 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 D05D
Rank	Company	Patents in D05D
#1	Brother Kogyo Kabushiki Kaisha	53
#2	Janome Sewing Machine Co., Ltd.	21
#3	Under Armour, Inc.	18
#4	Juki Corporation	13
#5	Levi Strauss & Co.	10
#6	Tuftco Corporation	5
#7	Zeng Hsing Industrial Co., Ltd.	5
#8	ABM International, Inc.	4
#9	Suzuki Manufacturing, Ltd.	4
#10	Bernina International AG	4
#11	Groz-beckert KG	3
#12	Gammill, Inc.	3
#13	Softwear Automation Inc.	2
#14	Mad Apparel, Inc.	2
#15	NV Michel VAN DE Wiele	2
#16	Janome Corporation	2
#17	Engineered Floors LLC	2
#18	Singer Sourcing Limited LLC	2
#19	Handi Quilter, Inc.	2
#20	Nextiles, Inc.	2

Footprint here vs. claim strategy

Each dot is a leading D05D 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 D05D assignees by class footprint. Bubble size = patents in D05D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Questions about D05D

Which company holds the most patents in D05D?

Brother Kogyo Kabushiki Kaisha leads D05D with 53 patents (19.9% of the subclass). By PatentsView assignee type, foreign corporations account for 67% of class grants.

Which D05D assignees grew fastest recently?

Among assignees with ≥5 grants in D05D, Tuftco Corporation shows the highest company-wide grant multiple (5.00x: 2 grants in 2019–2021 → 10 in 2022–2024) while holding 5 patents in this subclass. Growth is company-wide, not class-only.

How does D05D compare inside parent class D05?

Inside D05 (SEWING; EMBROIDERING; Tufting), D05D ranks #3 of 3 subclasses by grant volume and holds 14.8% of the parent class total. The largest sibling is D05B (989 grants).

What to do with this data

D05D in context - here's where to go next.

Brother Kogyo Kabushiki Kaisha leads D05D with 53 grants in this class. See full portfolio
D05D ranks #589 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class D05, the largest sibling subclass is D05B with 989 grants. Explore D05B

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

Methodology - D05D figures are USPTO PatentsView granted-utility totals for this subclass (266 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.