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 grant trajectory.

77
US patents granted
#7/8
in C09
0.1%
C09 class share
-47%
5-yr velocity

The verdict

According to USPTO PatentsView, Natural Resins ranks #630 of 670 CPC technology areas - 77 US patents granted since 2015, with recorded grant volume down 47% over five years.

#630
of 670 CPC technology areas
77
US patents granted, 2015–2025
Kraton Polymers
leading assignee (6)
-47%
grant velocity, last 5 yrs

How C09F's grant cadence moved

Between 2020–2024, C09F recorded 26 grants versus 49 in 2015–2019 (-47% equal-window velocity). Across complete years, output peaked in 2016 at 14 grants and bottomed in 2022 at 2 (+600% peak-over-trough). Lead assignee Kraton Polymers LLC holds 7.8% of the class ; the top three share 20.8%.

Leaderboard read

C09F concentration, lead at 7.8%

Kraton Polymers LLC leads this historical grant record at 7.8% of C09F - us corporation assignees hold 66% of class grants (27 of 41). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
7.8%

6 of 77 grants

Top three share
20.8%

of the class's recorded grants

Lead over #2
0

more grants than Kraton Chemical LLC

Where C09F 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), C09F ranks #7 and holds 0.1% 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.

C09K 29,124 C09D 27,394 C09J 11,139 C09B 3,624 C09C 2,483 C09G 1,039 C09H 18

Rising assignees active in C09F

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. #1 Kraton Polymers LLC 0.59x 29 → 17 company-wide · 6 in C09F

C09F grants by year, peak 2016 (14)

US utility-patent grants per year in C09F, 2015–2025 - recent five years are down 47% 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

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). Scatter plot of 14 data points (bubble-sized by third dimension). 51015202530 02468 Patents in C09F Avg claims / patent (company-wide) Kraton PolymersKraton ChemicalGlaxosmithkline…Akzo Nobel Coatings…Novus InternationalMicrotek LaboratoriesKratonArakawa Chemical…Ppg Architectural…Sunpine AbLawterPpg Europe B VIngevity South…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).

Questions about C09F

Which company holds the most patents in C09F?
Kraton Polymers LLC leads C09F with 6 patents (7.8% of the subclass). By PatentsView assignee type, us corporations account for 66% of class grants.
Which C09F assignees grew fastest recently?
Among assignees with ≥5 grants in C09F, Kraton Polymers LLC shows the highest company-wide grant multiple (0.59x: 29 grants in 2019–2021 → 17 in 2022–2024) while holding 6 patents in this subclass. Growth is company-wide, not class-only.
How does C09F compare inside parent class C09?
Inside C09 (DYES; PAINTS; POLISHES; Natural RESINS; ADHESIVES; Compositions NOT Otherwise Provided FOR; Applications OF Materials NOT Otherwise Provided FOR), C09F ranks #7 of 8 subclasses by grant volume and holds 0.1% of the parent class total. The largest sibling is C09K (29,124 grants).

What to do with this data

C09F in context - here's where to go next.

Figures reflect USPTO PatentsView grant data through 2026-05-15; pending applications not yet granted are not counted.

Methodology - C09F figures are USPTO PatentsView granted-utility totals for this subclass (77 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.