CPC technology class · D06

D06L - Dry-cleaning

Dry-cleaning, washing or bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; bleaching leather or furs. 225 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

225
US patents granted: #7/11
in D06: 1.7%
D06 class share: +2%
5-yr velocity

The verdict

According to USPTO PatentsView, Dry-cleaning ranks #595 of 670 CPC technology areas - 225 US patents granted since 2015, with recorded grant volume up 2% over five years.

#595
of 670 CPC technology areas: 225
US patents granted, 2015–2025: The Procter & Gamble
leading assignee (20): +2%
grant velocity, last 5 yrs

How D06L's grant cadence moved

Between 2020–2024, D06L recorded 96 grants versus 94 in 2015–2019 (+2% equal-window velocity). Across complete years, output peaked in 2020 at 23 grants and bottomed in 2022 at 15 (+53% peak-over-trough). Lead assignee Toyota Motor Corporation holds 3.6% of the class ; the top three share 8.0%.

Leaderboard read

D06L concentration, lead at 3.6%

Toyota Motor Corporation leads this historical grant record at 3.6% of D06L - foreign corporation assignees hold 66% of class grants (31 of 47). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 3.6%
Top three share: 8.0%
Lead over #2: 3

Where D06L sits inside D06

Among 11 subclasses in D06 (Treatment OF Textiles OR THE LIKE; LAUNDERING; Flexible Materials NOT Otherwise Provided FOR), D06L ranks #7 and holds 1.7% of the parent class's 13,295 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.

D06F 6,009 D06M 3,083 D06N 1,265 D06P 1,234 D06B 640 D06C 476 D06H 206 D06Q 135

Rising assignees active in D06L

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 Xero Limited 1.88x 16 → 30 company-wide · 5 in D06L
#2 Toyota Motor Corporation 1.78x 9 → 16 company-wide · 8 in D06L
#3 Danisco US Inc. 0.93x 45 → 42 company-wide · 5 in D06L

D06L grants by year, peak 2020 (23)

US utility-patent grants per year in D06L, 2015–2025 - recent five years are up 2% versus 2015–2019.

Toyota Motor

8
Danisco Us

5
Xero

5
Enviro Tech Chemical…

5
Novozymes

3
Jeanologia S L

3
Fast Retailing

2
Ab Enzymes Oy

2
3v Sigma S P A

2
Archroma Ip

1
Sysco Guest Supply

1
Leibniz-institut FÜR…

1

What this shows The Procter & Gamble is the most active filer in D06L, holding 20 of the 225 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 D06L
Rank	Company	Patents in D06L
#1	Toyota Motor Corporation	8
#2	Danisco US Inc.	5
#3	Xero Limited	5
#4	Enviro Tech Chemical Services, Inc.	5
#5	Novozymes, Inc.	3
#6	Jeanologia, S. L.	3
#7	Fast Retailing Co., Ltd.	2
#8	AB Enzymes OY	2
#9	3V Sigma S.P.A.	2
#10	Archroma IP GmbH	1
#11	Sysco Guest Supply, LLC	1
#12	Leibniz-institut FÜR Plasmaforschung UND Technologie E.V.	1
#13	Mabe S.A. DE C.V.	1
#14	Pellerin Milnor Corporation	1
#15	Wuhan Textile University	1
#16	Trident Limited	1
#17	Universite Libanaise	1
#18	Westpoint Home LLC	1
#19	SÖDRA SKOGSÄGARNA Ekonomisk FÖRENING	1
#20	Catexel Limited	1

Footprint here vs. claim strategy

Each dot is a leading D06L 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 D06L assignees by class footprint. Bubble size = patents in D06L. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Questions about D06L

Which company holds the most patents in D06L?

The Procter & Gamble Company leads D06L with 20 patents (3.6% of the subclass). By PatentsView assignee type, foreign corporations account for 66% of class grants.

Which D06L assignees grew fastest recently?

Among assignees with ≥5 grants in D06L, Xero Limited shows the highest company-wide grant multiple (1.88x: 16 grants in 2019–2021 → 30 in 2022–2024) while holding 5 patents in this subclass. Growth is company-wide, not class-only.

How does D06L compare inside parent class D06?

Inside D06 (Treatment OF Textiles OR THE LIKE; LAUNDERING; Flexible Materials NOT Otherwise Provided FOR), D06L ranks #7 of 11 subclasses by grant volume and holds 1.7% of the parent class total. The largest sibling is D06F (6,009 grants).

What to do with this data

D06L in context - here's where to go next.

Toyota Motor Corporation leads D06L with 8 grants in this class. See full portfolio
D06L ranks #595 of 670 by grant volume among all tracked CPC technology areas. See the ranking
Inside parent class D06, the largest sibling subclass is D06F with 6,009 grants. Explore D06F

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

Methodology - D06L figures are USPTO PatentsView granted-utility totals for this subclass (225 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.