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CPC technology class · C09

C09G - Polishing Compositions

Polishing compositions ; ski waxes. 1,039 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

1,039
US patents granted
C09
Parent CPC class
20
Active assignees
+12%
5-yr velocity

The verdict

Polishing Compositions ranks #457 of 670 CPC technology areas - 1,039 US patents granted since 2015, with filing up 12% over five years.

#457
of 670 CPC technology areas
1,039
US patents granted, 2015–2025
Fujimi Incorporated
leading assignee (126)
+12%
filing velocity, last 5 yrs
Top assignee: Fujimi Incorporated (126 patents)

CPC subclass C09G - POLISHING COMPOSITIONS ; SKI WAXES - covers 1,039 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 C09G is shaped by 20 distinct companies actively filing in this space. Fujimi Incorporated leads with 126 patents, followed by Cabot Microelectronics Corporation at 76 grants and Rohm And Haas Electronic Materials CMP Holdings, Inc. at 65.

Filing activity in C09G is up 12% over the past five years versus 2015-2019, a relatively steady filing pace. All counts come directly from USPTO PatentsView and reflect US granted utility patents only.

Is C09G innovation accelerating?

US utility-patent grants per year in C09G, 2015–2025 - recent five years are up 12% versus 2015–2019.

60708090100110120 20152016201720182019202020212022202320242025 72

Who leads C09G?

The 12 most active assignees in POLISHING COMPOSITIONS ; SKI WAXES - wider bars mean more grants

patents

What this shows Fujimi Incorporated is the most active filer in C09G, holding 126 of the 1,039 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 C09G
Rank Company Patents in C09G
#1 Fujimi Incorporated 126
#2 Cabot Microelectronics Corporation 76
#3 Rohm And Haas Electronic Materials CMP Holdings, Inc. 65
#4 Versum Materials US, Llc 37
#5 Hitachi Chemical Company, Ltd. 35
#6 Fujifilm Electronic Materials U.s.a., Inc. 29
#7 CMC Materials Llc 21
#8 Kctech Co., Ltd. 20
#9 JGC Catalysts And Chemicals Ltd. 15
#10 Saint-gobain Ceramics & Plastics, Inc. 14
#11 Showa Denko Materials Co., Ltd. 14
#12 HOYA Corporation 10
#13 Nitta Haas Inc. 10
#14 Fujifilm Planar Solutions, Llc 10
#15 Uwiz Technology Co., Ltd. 9
#16 Yamaguchi Seiken Kogyo Co., Ltd. 8
#17 Globalwafers Co., Ltd. 6
#18 Sinmat, Inc. 6
#19 Anji Microelectronics (shanghai) Co. Ltd 5
#20 Dongjin Semichem Co., Ltd. 4

About This Class

CPC subclass C09G belongs to class C09.

1,039 patents were granted in this class between 2015 and 2025.

20 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 C09G 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 C09G assignees by class footprint. Bubble size = patents in C09G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 C09G assignees by class footprint. Bubble size = patents in C09G. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 0102030 050100150 Patents in C09G Avg claims / patent (company-wide) Fujimi IncorporatedCabot MicroelectronicsRohm and Haas Materia…Versum Materials UsHitachi ChemicalFujifilm Materials UCmc MaterialsKctechJgc Catalysts and Che…Saint-gobain Ceramics…Showa Denko MaterialsHoyaNitta HaasFujifilm Planar Solut…
Top 14 C09G assignees by class footprint. Bubble size = patents in C09G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class C09G?
CPC subclass C09G covers POLISHING COMPOSITIONS ; SKI WAXES. 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 1,039 US utility patents granted since 2015.
How many patents have been filed in C09G?
1,039 US utility patents were granted in CPC subclass C09G between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C09G?
Fujimi Incorporated leads C09G with 126 patents, making it the most active assignee in this technology area.
How is patent data for C09G 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 C09G 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.