USPTO 2015–2025 USPTO PatentsView Foreign Corporation

China Petroleum & Chemical Corporation

USPTO PatentsView assignee record - 500 granted patents across 91 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B01J (CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

500

Total patents granted

CPC technology areas

18.6

Avg claims per patent

+53%

5-year filing velocity

The verdict

China holds 500 US patents across 91 technology areas, rank #898 of 50,000 tracked assignees.

#898
of 50,000 US assignees by volume: Top 1%
by Innovation Score (66.3/100): 18.6
avg claims per patent: +53%
filing velocity, last 5 yrs

Portfolio overview

China Petroleum & Chemical Corporation has been granted 500 US utility patents between 2015 and 2025, placing China Petroleum & Chemical Corporation at rank #898 across all assignees tracked by PlainPatent. This portfolio spans 91 distinct Cooperative Patent Classification (CPC) subclasses, averaging 18.6 claims per patent with primary concentration in B01J (CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS). As a Foreign Corporation, China Petroleum & Chemical Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, China sits between FEI Company (502 patents, rank #894) and Omron Healthcare Co., Ltd. (499 patents, rank #902) - the closest US assignees by grant volume. The composite Innovation Score of 66.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 302 grants, compared with 198 in the 2015–2019 window, a +53% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. China Petroleum & Chemical Corporation's 18.6 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while a multi-domain presence across 91 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark China Petroleum & Chemical Corporation against peers pursuing similar technology classes.

FEI

502
Nidec Sankyo

502
Airbus Helicopters

501
Atlassian PTY

500
United Parcel Ser…

500
China Petroleum &… ◀

500
Dalian University…

499
NHK Spring

499
Omron Healthcare

499

What this shows China holds 500 patents at rank #898, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near China

By rank, the assignees closest to #898 in granted patent volume.

Leaders in B01J (Chemical OR Physical Processes)

Other assignees with the most granted patents in China's primary technology class.

China's Innovation Score vs. every tracked assignee

Composite of portfolio volume, filing velocity, technology breadth, and claim depth (0–100)

66 Top 1% higher than 99% of 50,000 US assignees

Each bar is a band; taller bars hold more US assignees. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source USPTO PatentsView, PlainPatent Innovation Score · 2015–2025

USPTO utility patent grants by year · 2015–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

China Petroleum & Chemical Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	42	8.4%
2016	44	8.8%
2017	48	9.6%
2018	36	7.2%
2019	28	5.6%
2020	39	7.8%
2021	47	9.4%
2022	43	8.6%
2023	41	8.2%
2024	64	12.8%
2025	68	13.6%

Which technologies does China Petroleum & Chemical Corporation patent most?

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 196

C07C - ACYCLIC OR CARBOCYCLIC COMPOUNDS 137

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 136

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 84

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 80

E21B - EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS 63

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 62

B01D - SEPARATION 49

G01V - GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS 41

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 41

C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE 36

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 30

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 17

C07F - ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM 16

C07D - HETEROCYCLIC COMPOUNDS 16

Top 15 of 91 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#898

Across all tracked assignees

Innovation Score

66.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does China Petroleum & Chemical Corporation hold?

China Petroleum & Chemical Corporation holds 500 US granted patents filed between 2015 and 2025, spanning 91 technology areas.

What is China Petroleum & Chemical Corporation's Innovation Score?

China Petroleum & Chemical Corporation has an Innovation Score of 66.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does China Petroleum & Chemical Corporation focus on?

China Petroleum & Chemical Corporation's top technology area is B01J (CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS) with 196 patents. The company has filed patents in 91 CPC subclasses total.

Is China Petroleum & Chemical Corporation's patent filing rate increasing or decreasing?

China Petroleum & Chemical Corporation's recent filing velocity is +53% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for China Petroleum & Chemical Corporation's patents?

China Petroleum & Chemical Corporation's patents average 18.6 claims each. This falls within the standard range, providing solid legal coverage.

How is the China Petroleum & Chemical Corporation patent data sourced?

All patent data comes from USPTO PatentsView, a public research dataset maintained by the United States Patent and Trademark Office covering US granted utility patents from 2015 to 2025.

How to use this portfolio

China's 500 grants land it in the top 1% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - China ranks #898 of 50,000. Top 50 holders
Most of this portfolio concentrates in B01J - see who else leads that technology area. B01J leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the USPTO PatentsView database. Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

Data sources used on this page

USPTO PatentsView - the disambiguated bulk patent-grant, assignee, and CPC data this page's figures are derived from. patentsview.org
Cooperative Patent Classification (CPC) - the joint USPTO/EPO classification scheme used to group patents by technology area. cooperativepatentclassification.org
USPTO Patent Public Search - the official interface to verify the status of any individual patent. ppubs.uspto.gov

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

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. Data current as of May 2026.