PlainPatent

CPC technology class · C09

C09D - Coating Compositions

Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor. 27,394 US utility patents granted 2015–2025, with the leading assignees and year-by-year grant trajectory.

27,394
US patents granted
#2/8
in C09
36.6%
C09 class share
-4%
5-yr velocity

The verdict

According to USPTO PatentsView, Coating Compositions ranks #73 of 670 CPC technology areas - 27,394 US patents granted since 2015, with recorded grant volume down 4% over five years.

#73
of 670 CPC technology areas
27,394
US patents granted, 2015–2025
Seiko Epson
leading assignee (578)
-4%
grant velocity, last 5 yrs

How C09D's grant cadence moved

Between 2020–2024, C09D recorded 11,659 grants versus 12,157 in 2015–2019 (-4% equal-window velocity). Across complete years, output peaked in 2019 at 2,758 grants and bottomed in 2015 at 2,147 (+28% peak-over-trough). Lead assignee Seiko Epson Corporation holds 2.1% of the class ; the top three share 5.8%.

Leaderboard read

C09D concentration, lead at 2.1%

Seiko Epson Corporation leads this historical grant record at 2.1% of C09D - foreign corporation assignees hold 63% of class grants (12,179 of 19,223). Figures describe granted US utility patents in this CPC subclass, not current investment or legal strength.

Leader's share
2.1%

578 of 27,394 grants

Top three share
5.8%

of the class's recorded grants

Lead over #2
77

more grants than DOW Global Technologies LLC

Where C09D 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), C09D ranks #2 and holds 36.6% 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 C09J 11,139 C09B 3,624 C09C 2,483 C09G 1,039 C09F 77 C09H 18

Rising assignees active in C09D

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 Resonac Corporation 192x 0 → 192 company-wide · 27 in C09D
  2. #2 Toppan Inc. 56x 0 → 56 company-wide · 10 in C09D
  3. #3 Bmic LLC 35x 5 → 176 company-wide · 27 in C09D
  4. #4 CubicPV Inc. 19x 0 → 19 company-wide · 5 in C09D
  5. #5 Soilgenic Technologies, LLC 14x 0 → 14 company-wide · 9 in C09D

C09D grants by year, peak 2019 (2,758)

US utility-patent grants per year in C09D, 2015–2025 - recent five years are down 4% versus 2015–2019.

1,5002,0002,5003,000 20152016201720182019202020212022202320242025 1,678

Who leads C09D?

The 12 most active assignees in Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor - wider bars mean more grants

patents

What this shows Seiko Epson is the most active filer in C09D, holding 578 of the 27,394 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 C09D
Rank Company Patents in C09D
#1 Seiko Epson Corporation 578
#2 DOW Global Technologies LLC 501
#3 LG Chem, Ltd. 500
#4 Fujifilm Corporation 471
#5 3M Innovative Properties Company 415
#6 Hewlett-packard Development Company, L.P. 386
#7 Shin-etsu Chemical Co., Ltd. 386
#8 Basf SE 383
#9 Ricoh Company, Ltd. 373
#10 Xerox Corporation 342
#11 PPG Industries Ohio, Inc. 336
#12 Rohm and Haas Company 301
#13 Basf Coatings GMBH 209
#14 Nissan Chemical Industries, Ltd. 191
#15 Sun Chemical Corporation 173
#16 Merck Patent GmbH 138
#17 DIC Corporation 137
#18 Daikin Industries, Ltd. 133
#19 Eastman Kodak Company 132
#20 Swimc LLC 131

Footprint here vs. claim strategy

Each dot is a leading C09D 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 C09D assignees by class footprint. Bubble size = patents in C09D. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 5101520 100200300400500600 Patents in C09D Avg claims / patent (company-wide) Seiko EpsonDow GlobalLg ChemFujifilm3m Innovative…Hewlett-packard…Shin-etsu ChemicalBasf SeRicohXeroxPpg Industries OhioRohm and HaasBasf CoatingsNissan Chemical…
Top 14 C09D assignees by class footprint. Bubble size = patents in C09D. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Classes near C09D's 27,394-grant footprint

Nationwide nearest neighbors for C09D (#73 of 670 by volume ; lead share 2.1%) - not the C09 parent-class siblings above.

Nearest by grant volume

G06K 27,107 G08G 27,080 F16H 27,860 H02K 26,848

Nearest by lead-assignee share

B01J 2.1% B30B 2.1% A23L 2.1% A61J 2.1%

Questions about C09D

Which company holds the most patents in C09D?
Seiko Epson Corporation leads C09D with 578 patents (2.1% of the subclass). By PatentsView assignee type, foreign corporations account for 63% of class grants.
Which C09D assignees grew fastest recently?
Among assignees with ≥5 grants in C09D, Resonac Corporation shows the highest company-wide grant multiple (192x: 0 grants in 2019–2021 → 192 in 2022–2024) while holding 27 patents in this subclass. Growth is company-wide, not class-only.
How does C09D 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), C09D ranks #2 of 8 subclasses by grant volume and holds 36.6% of the parent class total. The largest sibling is C09K (29,124 grants).

What to do with this data

C09D in context - here's where to go next.

  • Seiko Epson Corporation leads C09D with 578 grants in this class. See full portfolio
  • C09D ranks #73 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 - C09D figures are USPTO PatentsView granted-utility totals for this subclass (27,394 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.