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CPC technology class · C10

C10G - Cracking Hydrocarbon OILS

Cracking hydrocarbon oils; production of liquid hydrocarbon mixtures, e.g. by destructive hydrogenation, oligomerisation, polymerisation ; recovery of hydrocarbon oils from oil-shale, oil-sand, or gases; refining mixtures mainly consisting of hydrocarbons; reforming of naphtha; mineral waxes. 9,942 US utility patents granted 2015–2025, with the leading assignees and year-by-year filing trajectory.

9,942
US patents granted
C10
Parent CPC class
20
Active assignees
-10%
5-yr velocity

The verdict

Cracking Hydrocarbon OILS ranks #173 of 670 CPC technology areas - 9,942 US patents granted since 2015, with filing down 10% over five years.

#173
of 670 CPC technology areas
9,942
US patents granted, 2015–2025
Saudi Arabian Oil
leading assignee (851)
-10%
filing velocity, last 5 yrs
Top assignee: Saudi Arabian OIL Company (851 patents)

CPC subclass C10G - CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES - covers 9,942 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 C10G is shaped by 20 distinct companies actively filing in this space. Saudi Arabian OIL Company leads with 851 patents, followed by UOP Llc at 651 grants and Exxonmobil Research AND Engineering Company at 334.

Filing activity in C10G is down 10% 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 C10G innovation accelerating?

US utility-patent grants per year in C10G, 2015–2025 - recent five years are down 10% versus 2015–2019.

4006008001,0001,200 20152016201720182019202020212022202320242025 473

Who leads C10G?

The 12 most active assignees in CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES - wider bars mean more grants

patents

What this shows Saudi Arabian Oil is the most active filer in C10G, holding 851 of the 9,942 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 C10G
Rank Company Patents in C10G
#1 Saudi Arabian OIL Company 851
#2 UOP Llc 651
#3 Exxonmobil Research AND Engineering Company 334
#4 IFP Energies Nouvelles 282
#5 Shell OIL Compny 280
#6 Chevron U.s.a. Inc. 218
#7 Exxonmobil Chemical Patents Inc. 207
#8 Sabic Global Technologies B.v. 174
#9 China Petroleum & Chemical Corporation 136
#10 Neste OYJ 107
#11 Phillips 66 Company 105
#12 Chevron Phillips Chemical Company Lp 95
#13 Indian Oil Corporation Limited 95
#14 JX Nippon Oil & Energy Corporation 93
#15 Lummus Technology Llc 93
#16 Exxon Mobil Technology And Engineering Company 87
#17 Ecolab USA Inc. 82
#18 Saudi Basic Industries Corporation 72
#19 Research Institute OF Petroleum Processing, Sinopec 72
#20 Xyleco, Inc. 68

About This Class

CPC subclass C10G belongs to class C10.

9,942 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 C10G 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 C10G assignees by class footprint. Bubble size = patents in C10G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Top 14 C10G assignees by class footprint. Bubble size = patents in C10G. Source: USPTO PatentsView (claim depth is company-wide across all classes). Scatter plot of 14 data points (bubble-sized by third dimension). 510152025 02004006008001000 Patents in C10G Avg claims / patent (company-wide) Saudi Arabian OilUopExxonmobil Research A…Ifp Energies NouvellesShell Oil CompnyChevron UExxonmobil Chemical P…Sabic Global B VChina Petroleum & Che…Neste OyjPhillips 66Chevron Phillips Chem…Indian OilJx Nippon Oil & Energy
Top 14 C10G assignees by class footprint. Bubble size = patents in C10G. Source: USPTO PatentsView (claim depth is company-wide across all classes).

Frequently Asked Questions

What is CPC class C10G?
CPC subclass C10G covers CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION ; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES. It belongs to CPC class C10 (PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT), with 9,942 US utility patents granted since 2015.
How many patents have been filed in C10G?
9,942 US utility patents were granted in CPC subclass C10G between 2015 and 2025, based on USPTO PatentsView data.
Which company holds the most patents in C10G?
Saudi Arabian OIL Company leads C10G with 851 patents, making it the most active assignee in this technology area.
How is patent data for C10G 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 C10G 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.