CPC technology class · D06

D06G - Mechanical Or Pressure Cleaning Of Carpets

Mechanical or pressure cleaning of carpets, rugs, sacks, hides, or other skin or textile articles or fabrics; turning inside-out flexible tubular or other hollow articles. 11 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

Compiled by PlainPatent · May 15, 2026

11
US patents granted: #10/11
in D06: 0.1%
D06 class share: +133%
5-yr velocity

The verdict

According to USPTO PatentsView, Mechanical Or Pressure Cleaning Of Carpets ranks #658 of 670 CPC technology areas - 11 US patents granted since 2015, with recorded grant volume up 133% over five years.

#658
of 670 CPC technology areas: 11
US patents granted, 2015–2025: West Heat Rauma Oy
leading assignee (2): +133%
grant velocity, last 5 yrs

How D06G's grant cadence moved

Between 2020–2024, D06G recorded 7 grants versus 3 in 2015–2019 (+133% equal-window velocity). Across complete years, output peaked in 2022 at 2 grants and bottomed in 2015 at 1 (+100% peak-over-trough). Lead assignee Lonati S.P.A. holds 9.1% of the class .

Leaderboard read

D06G concentration, lead at 9.1%

Lonati S.P.A. leads this historical grant record at 9.1% of D06G - foreign corporation assignees hold 50% of class grants (1 of 2). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share: 9.1%
Top three share: N/A
Lead over #2: 0

Where D06G sits inside D06

Among 11 subclasses in D06 (Treatment OF Textiles OR THE LIKE; LAUNDERING; Flexible Materials NOT Otherwise Provided FOR), D06G ranks #10 and holds 0.1% 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 D06L 225 D06H 206

D06G grants by year, peak 2022 (2)

US utility-patent grants per year in D06G, 2015–2025 - recent five years are up 133% versus 2015–2019.

Lonati S P A

1
Hydrite Chemical

1

What this shows West Heat Rauma Oy is the most active filer in D06G, holding 2 of the 11 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 D06G
Rank	Company	Patents in D06G
#1	Lonati S.P.A.	1
#2	Hydrite Chemical Co.	1

Questions about D06G

Which company holds the most patents in D06G?

West Heat Rauma OY leads D06G with 2 patents (9.1% of the subclass). By PatentsView assignee type, foreign corporations account for 50% of class grants.

How does D06G compare inside parent class D06?

Inside D06 (Treatment OF Textiles OR THE LIKE; LAUNDERING; Flexible Materials NOT Otherwise Provided FOR), D06G ranks #10 of 11 subclasses by grant volume and holds 0.1% of the parent class total. The largest sibling is D06F (6,009 grants).

What to do with this data

D06G in context - here's where to go next.

Lonati S.P.A. leads D06G with 1 grants in this class. See full portfolio
D06G ranks #658 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 - D06G figures are USPTO PatentsView granted-utility totals for this subclass (11 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.