PlainPatent

CPC technology class · C09

C09H - Preparation OF GLUE OR Gelatine

Preparation of glue or gelatine. 18 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

18
US patents granted
C09
Parent CPC class
4
Active assignees
+225%
5-yr velocity

The verdict

Preparation OF GLUE OR Gelatine ranks #654 of 670 CPC technology areas - 18 US patents granted since 2015, with filing up 225% over five years.

#654
of 670 CPC technology areas
18
US patents granted, 2015–2025
Rockwool A/S
leading assignee (5)
+225%
filing velocity, last 5 yrs
Top assignee: Rockwool A/s (5 patents)

CPC subclass C09H - PREPARATION OF GLUE OR GELATINE - covers 18 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class C09 (DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR). See our CPC classification guide for how the system works.

The competitive landscape in C09H is shaped by 4 distinct companies actively filing in this space. Rockwool A/s leads with 5 patents, followed by Catalent U.k. Swindon Zydis Limited at 1 grants and Humabiologics, Inc. at 1.

Filing activity in C09H is up 225% 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 C09H innovation accelerating?

US utility-patent grants per year in C09H, 2015–2025 - recent five years are up 225% versus 2015–2019.

012345 20152016201820202021202320242025 2

Who leads C09H?

The 12 most active assignees in PREPARATION OF GLUE OR GELATINE - wider bars mean more grants

patents

What this shows Rockwool A/S is the most active filer in C09H, holding 5 of the 18 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 C09H
Rank Company Patents in C09H
#1 Rockwool A/s 5
#2 Catalent U.k. Swindon Zydis Limited 1
#3 Humabiologics, Inc. 1
#4 Nitta Gelatin Inc. 1

About This Class

CPC subclass C09H belongs to class C09.

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

4 companies actively patent in this space.

Classification System

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

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Frequently Asked Questions

What is CPC class C09H?
CPC subclass C09H covers PREPARATION OF GLUE OR GELATINE. It belongs to CPC class C09 (DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR), with 18 US utility patents granted since 2015.
How many patents have been filed in C09H?
18 US utility patents were granted in CPC subclass C09H between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C09H?
Rockwool A/s leads C09H with 5 patents, making it the most active assignee in this technology area.
How is patent data for C09H 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., C09) is a broad technology category. Subclasses like C09H 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.