PlainPatent

CPC technology class · C09

C09F - Natural Resins

Natural resins; french polish; drying-oils; oil drying agents, i.e. siccatives; turpentine. 77 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

77
US patents granted
C09
Parent CPC class
16
Active assignees
-45%
5-yr velocity

The verdict

Natural Resins ranks #630 of 670 CPC technology areas - 77 US patents granted since 2015, with filing down 45% over five years.

#630
of 670 CPC technology areas
77
US patents granted, 2015–2025
Kraton Polymers
leading assignee (6)
-45%
filing velocity, last 5 yrs
Top assignee: Kraton Polymers Llc (6 patents)

CPC subclass C09F - NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE - covers 77 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 C09F is shaped by 16 distinct companies actively filing in this space. Kraton Polymers Llc leads with 6 patents, followed by Kraton Chemical Llc at 6 grants and Glaxosmithkline Biologicals Sa at 4.

Filing activity in C09F is down 45% over the past five years versus 2015-2019, a notable slowdown that may signal a maturing field. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is C09F innovation accelerating?

US utility-patent grants per year in C09F, 2015–2025 - recent five years are down 45% versus 2015–2019.

051015 20152016201720182019202020212022202320242025 1

Who leads C09F?

The 12 most active assignees in NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE - wider bars mean more grants

patents

What this shows Kraton Polymers is the most active filer in C09F, holding 6 of the 77 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 C09F
Rank Company Patents in C09F
#1 Kraton Polymers Llc 6
#2 Kraton Chemical Llc 6
#3 Glaxosmithkline Biologicals Sa 4
#4 Akzo Nobel Coatings International B.v. 3
#5 Novus International, Inc. 3
#6 Microtek Laboratories, Inc. 3
#7 Kraton Corporation 2
#8 Arakawa Chemical Industries, Ltd. 2
#9 PPG Architectural Finishes, Inc. 2
#10 Sunpine AB 2
#11 Lawter, Inc. 2
#12 PPG Europe B.v. 2
#13 Ingevity South Carolina, Llc 1
#14 Allnex Austria Gmbh 1
#15 AFI Licensing Llc 1
#16 Jinda Films Americas Llc 1

About This Class

CPC subclass C09F belongs to class C09.

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

16 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 C09F 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 C09F assignees by class footprint. Bubble size = patents in C09F. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 C09F assignees by class footprint. Bubble size = patents in C09F. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 51015202530 02468 Patents in C09F Avg claims / patent (company-wide) Kraton PolymersKraton ChemicalGlaxosmithkline Biolo…Akzo Nobel Coatings I…Novus InternationalMicrotek LaboratoriesKratonArakawa Chemical Indu…Ppg Architectural Fin…Sunpine AbLawterPpg Europe B VIngevity South Caroli…Allnex Austria
Top 14 C09F assignees by class footprint. Bubble size = patents in C09F. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class C09F?
CPC subclass C09F covers NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE. 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 77 US utility patents granted since 2015.
How many patents have been filed in C09F?
77 US utility patents were granted in CPC subclass C09F between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C09F?
Kraton Polymers Llc leads C09F with 6 patents, making it the most active assignee in this technology area.
How is patent data for C09F 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 C09F 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.