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 grant trajectory.
- 18
- US patents granted
- #8/8
- in C09
- 0.0%
- C09 class share
- +175%
- 5-yr velocity
The verdict
According to USPTO PatentsView, Preparation Of Glue Or Gelatine ranks #655 of 670 CPC technology areas - 18 US patents granted since 2015, with recorded grant volume up 175% over five years.
- #655
- of 670 CPC technology areas
- 18
- US patents granted, 2015–2025
- Rockwool A/S
- leading assignee (5)
- +175%
- grant velocity, last 5 yrs
How tightly C09H concentrates
Rockwool A/S holds 27.8% of C09H's recorded grants (5 of 18) - 4 more than Catalent U.K. Swindon Zydis Limited. Across complete PatentsView years, the class peaked in 2024 at 4 grants and bottomed in 2016 at 1 (+300% peak-over-trough). Equal-window velocity 2020–2024 vs 2015–2019: +175% (11 vs 4 grants).
Leaderboard read
C09H concentration, lead at 27.8%
Rockwool A/S leads this historical grant record at 27.8% of C09H - foreign corporation assignees hold 88% of class grants (7 of 8). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.
- Leader's share
- 27.8%
- Top three share
- 38.9%
- Lead over #2
- 4
5 of 18 grants
of the class's recorded grants
more grants than Catalent U.K. Swindon Zydis Limited
Where C09H sits inside C09
Among 8 subclasses in C09 (DYES; PAINTS; POLISHES; Natural RESINS; ADHESIVES; Compositions NOT Otherwise Provided FOR; Applications OF Materials NOT Otherwise Provided FOR), C09H ranks #8 and holds 0.0% of the parent class's 74,898 recorded grants. Sibling chips below are the other subclasses in the same parent class, not the nationwide volume/lead-share peers further down.
Rising assignees active in C09H
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 Rockwool A/S 21x 0 → 21 company-wide · 5 in C09H
C09H grants by year, peak 2024 (4)
US utility-patent grants per year in C09H, 2015–2025 - recent five years are up 175% versus 2015–2019.
Who leads C09H?
The 12 most active assignees in Preparation OF Glue OR Gelatine - wider bars mean more grants
- Rockwool A/S
Rockwool A/S
5 patents
- Catalent U K Swindon… 1
Catalent U.K. Swindon Zydis Limited
1 patents
- Humabiologics 1
Humabiologics, Inc.
1 patents
- Nitta Gelatin 1
Nitta Gelatin Inc.
1 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.
View data table
| 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 |
Questions about C09H
Which company holds the most patents in C09H?
Which C09H assignees grew fastest recently?
How does C09H compare inside parent class C09?
What to do with this data
C09H in context - here's where to go next.
- Rockwool A/S leads C09H with 5 grants in this class. See full portfolio
- C09H ranks #655 of 670 by grant volume among all tracked CPC technology areas. See the ranking
- Inside parent class C09, the largest sibling subclass is C09K with 29,124 grants. Explore C09K
Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.
Methodology - C09H figures are USPTO PatentsView granted-utility totals for this subclass (18 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.