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CPC technology class · C10

C10N - Indexing Scheme Associated WITH Subclass C10M Relating TO…

Indexing scheme associated with subclass c10m relating to lubricating compositions. 3,834 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

3,834
US patents granted
C10
Parent CPC class
20
Active assignees
+7%
5-yr velocity

The verdict

Indexing Scheme Associated WITH Subclass C10M Relating TO… ranks #278 of 670 CPC technology areas - 3,834 US patents granted since 2015, with filing up 7% over five years.

#278
of 670 CPC technology areas
3,834
US patents granted, 2015–2025
Idemitsu Kosan
leading assignee (212)
+7%
filing velocity, last 5 yrs
Top assignee: Idemitsu Kosan Co., Ltd. (212 patents)

CPC subclass C10N - INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS - covers 3,834 US utility patents granted between 2015 and 2025 according to USPTO PatentsView records, within the broader CPC class C10 (PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT). See our CPC classification guide for how the system works.

The competitive landscape in C10N is shaped by 20 distinct companies actively filing in this space. Idemitsu Kosan Co., Ltd. leads with 212 patents, followed by The Lubrizol Corporation at 210 grants and Afton Chemical Corporation at 142.

Filing activity in C10N is up 7% 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 C10N innovation accelerating?

US utility-patent grants per year in C10N, 2015–2025 - recent five years are up 7% versus 2015–2019.

200250300350400 20152016201720182019202020212022202320242025 216

Who leads C10N?

The 12 most active assignees in INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS - wider bars mean more grants

patents

What this shows Idemitsu Kosan is the most active filer in C10N, holding 212 of the 3,834 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 C10N
Rank Company Patents in C10N
#1 Idemitsu Kosan Co., Ltd. 212
#2 The Lubrizol Corporation 210
#3 Afton Chemical Corporation 142
#4 Exxonmobil Research AND Engineering Company 112
#5 Infineum International Limited 80
#6 Chevron Oronite Company Llc 71
#7 Total Marketing Services 68
#8 Exxonmobil Chemical Patents Inc. 62
#9 JX Nippon Oil & Energy Corporation 59
#10 Eneos Corporation 55
#11 Chevron U.s.a. Inc. 52
#12 Kyodo Yushi Co., Ltd. 46
#13 Shell OIL Compny 41
#14 THE Chemours Company FC, Llc 35
#15 Evonik Operations Gmbh 29
#16 Biosynthetic Technologies, Llc 29
#17 Showa Denko K.k. 27
#18 Vallourec OIL AND GAS France 26
#19 JXTG Nippon OIL & Energy Corporation 25
#20 SK Innovation Co., Ltd. 22

About This Class

CPC subclass C10N belongs to class C10.

3,834 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 C10N 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 C10N assignees by class footprint. Bubble size = patents in C10N. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 C10N assignees by class footprint. Bubble size = patents in C10N. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 050100150200250 Patents in C10N Avg claims / patent (company-wide) Idemitsu KosanThe LubrizolAfton ChemicalExxonmobil Research A…Infineum InternationalChevron OroniteTotal Marketing Servi…Exxonmobil Chemical P…Jx Nippon Oil & EnergyEneosChevron UKyodo YushiShell Oil CompnyThe Chemours Fc
Top 14 C10N assignees by class footprint. Bubble size = patents in C10N. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class C10N?
CPC subclass C10N covers INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS. It belongs to CPC class C10 (PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT), with 3,834 US utility patents granted since 2015.
How many patents have been filed in C10N?
3,834 US utility patents were granted in CPC subclass C10N between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C10N?
Idemitsu Kosan Co., Ltd. leads C10N with 212 patents, making it the most active assignee in this technology area.
How is patent data for C10N 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., C10) is a broad technology category. Subclasses like C10N 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.