PlainPatent

CPC technology class · D02

D02H - Warping

Warping, beaming or leasing. 37 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

37
US patents granted
D02
Parent CPC class
9
Active assignees
+64%
5-yr velocity

The verdict

Warping ranks #646 of 670 CPC technology areas - 37 US patents granted since 2015, with filing up 64% over five years.

#646
of 670 CPC technology areas
37
US patents granted, 2015–2025
Columbia Insurance
leading assignee (9)
+64%
filing velocity, last 5 yrs
Top assignee: Columbia Insurance Company (9 patents)

CPC subclass D02H - WARPING, BEAMING OR LEASING - covers 37 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class D02 (YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING). See our CPC classification guide for how the system works.

The competitive landscape in D02H is shaped by 9 distinct companies actively filing in this space. Columbia Insurance Company leads with 9 patents, followed by THE Secant Group, Llc at 2 grants and Nv Michel VAN DE Wiele at 2.

Filing activity in D02H is up 64% over the past five years versus 2015-2019, a sharp acceleration suggesting an emerging or fast-moving technology area. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is D02H innovation accelerating?

US utility-patent grants per year in D02H, 2015–2025 - recent five years are up 64% versus 2015–2019.

0246810 2015201620172019202020212022202320242025 8

Who leads D02H?

The 12 most active assignees in WARPING, BEAMING OR LEASING - wider bars mean more grants

patents

What this shows Columbia Insurance is the most active filer in D02H, holding 9 of the 37 patents in this class. Concentration at the top signals how contestable this technology area is for new entrants.

Source USPTO PatentsView, granted utility patents As of 2015–2025 grant years
View data table
Top patent holders in CPC subclass D02H
Rank Company Patents in D02H
#1 BTSR International S.p.a. 2
#2 THE Secant Group, Llc 2
#3 Nv Michel VAN DE Wiele 2
#4 Oerlikon Textile Gmbh & Co. KG 1
#5 Tsudakoma Kogyo Kabushiki Kaisha 1
#6 Vandewiele Nv 1
#7 Tuftco Corporation 1
#8 American Linc, Llc 1
#9 Calik Denim Tekstil SAN. VE TIC. A.s. 1

About This Class

CPC subclass D02H belongs to class D02.

37 patents were granted in this class between 2015 and 2025.

9 companies actively patent in this space.

Classification System

Cooperative Patent Classification (CPC) is a hierarchical patent classification system used by the USPTO and EPO.

← All Technology Classes Technology Rankings →

Footprint here vs. claim strategy

Each dot is a leading D02H 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 9 D02H assignees by class footprint. Bubble size = patents in D02H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 9 D02H assignees by class footprint. Bubble size = patents in D02H. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 9 data points (bubble-sized by third dimension). 0510152025 0.511.522.5 Patents in D02H Avg claims / patent (company-wide) Btsr International S…The Secant GroupMichel Van De WieleOerlikon Textile & KgTsudakoma KogyoVandewieleTuftcoAmerican LincCalik Denim Tekstil S…
Top 9 D02H assignees by class footprint. Bubble size = patents in D02H. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class D02H?
CPC subclass D02H covers WARPING, BEAMING OR LEASING. It belongs to CPC class D02 (YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING), with 37 US utility patents granted since 2015.
How many patents have been filed in D02H?
37 US utility patents were granted in CPC subclass D02H between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in D02H?
Columbia Insurance Company leads D02H with 9 patents, making it the most active assignee in this technology area.
How is patent data for D02H collected?
Patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office. It covers all US granted utility patents and assigns CPC codes based on the technology described in each patent.
What is the difference between CPC class and subclass?
A CPC class (e.g., D02) is a broad technology category. Subclasses like D02H provide finer granularity within that category. PlainPatent organizes data at the subclass level (4-character codes) for the most useful view of technology domains.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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.