Where does China Petroleum & Chemical Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), China Petroleum & Chemical Corporation ranks #898 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does China Petroleum & Chemical Corporation hold?

China Petroleum & Chemical Corporation holds 500 US utility patents granted 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 (top 1% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

China Petroleum & Chemical Corporation's recent grant velocity is +18% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

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

China Petroleum & Chemical Corporation's patents average 18.6 claims each. This is an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

China Petroleum & Chemical Corporation

Q: 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, ranking #17 of 2,755 assignees active in that subclass. Grants appear in 91 CPC subclasses total.

USPTO PatentsView assignee record - 500 granted patents across 91 technology areas, recorded in grant years 2015–2025. Grant-trend analysis is cross-referenced to USPTO Patent Public Search; it does not measure application filings, current R&D, or legal strength. Primary class: B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, China ranks #898 of 49,997 tracked US assignees by granted-patent volume, with 500 patents across 91 technology areas.

#898
of 49,997 US assignees by volume: Top 1%
by Innovation Score (66.3/100): 18.6
avg claims per patent: +18%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R898 · Foreign Corporation #898 · 500 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-RICH · TYPE-FRNCORP · VEL-UP · BOOK-FULL

GRANTS-MID 500 grants
TOP-DECILE #898/49,997
PHOTO-FINISH Atlassian PTY
CPC-WIDE B01J · 91 areas
INNOV-STRONG 66.3/100
CLAIMS-RICH 18.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-UP +18% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Atlassian PTY Ltd. (±0 grants)

Instrument codes from this assignee’s USPTO PatentsView grant sheet: volume band, corpus rank, photo-finish peer, lead CPC, Innovation Score, claim depth, assignee type, velocity, and book completeness. Not a USPTO rating of patent strength.

How China’s 66.3 Innovation Score adds up

The same four weighted components behind every Innovation Score on PlainPatent: portfolio volume, grant velocity, technology breadth, and claim depth.

Volume 21.5 pts (32%) Velocity 8.7 pts (13%) Breadth 25.0 pts (38%) Claim depth 11.2 pts (17%)

Qualcomm Incorporated · highest

85
Konica Minolta… · near

66
THE Johns Hopkins… · near

66
China Petroleum &… · this assignee

66
Sharp · near

66
Volvo CAR · near

66
3D Lighting… · lowest

7

What this shows China's Innovation Score is 66.3/100 (top 1% of the PatentsView-derived corpus). The chart places that score against the nearest Innovation Score peers plus corpus poles, not a reprint of the volume ranking.

Does more volume mean deeper claims for China?

Each dot is one of China’s 8 nearest volume peers (same corpus rank neighbourhood as the chart above), placed by total granted patents (horizontal) against average claims per patent (vertical). China’s own 18.6 claims/patent is ABOVE the 11.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

China vs its 8 nearest volume peers: granted patents vs average claims per patent. Source: USPTO PatentsView.

How China's grant cadence moved

Between 2020–2024, China Petroleum & Chemical Corporation received 234 grants versus 198 in 2015–2019 (+18% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2024 at 64 grants and bottomed in 2019 at 28. Lead class B01J accounts for 39.2% of the portfolio across 91 subclasses. Volume neighbours: FEI Company (#894) and Omron Healthcare Co., Ltd. (#902).

China's three-year grant acceleration

From 2019–2021 to 2022–2024, China Petroleum & Chemical Corporation moved from 114 to 148 grants (1.30x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #643. See the growth leaderboard.

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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for China, neither rank-band nor same-CPC leaders (those blocks stay above). In B01J (Chemical OR Physical Processes), China ranks #17 of 2,755 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (66 here).

Volvo CAR Corporation 66 Sharp Kabushiki Kaisha 66 THE Johns Hopkins University 66 Konica Minolta Business Solutions U.S.A., Inc. 66

Similar claim depth

Nearest assignees by average claims per patent (18.6 here).

Worldpay, LLC 18.6 avg T-Mobile Innovations LLC 18.6 avg Oracle America, Inc. 18.6 avg RAI Strategic Holdings, Inc. 18.6 avg

China's Innovation Score vs. every tracked assignee

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

66 Top 1% higher than 99% of 49,997 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%
2025partial year	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

More on this record

Data Source

USPTO PatentsView, US granted patents 2015–2025

View all rankings → How is Innovation Score calculated?

What to do with this data

China Petroleum & Chemical Corporation's patent record in context - here's where to go next.

China Petroleum & Chemical Corporation's lead technology class is B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus), 39.2% of its portfolio - see every assignee active in that class. Explore B01J
Ranked #898 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare China Petroleum & Chemical Corporation against FEI Company, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 66.3/100 blends volume, velocity, technology breadth, and claim depth. How it's calculated

Figures reflect USPTO PatentsView grant data through May 2026; pending applications not yet granted are not counted.

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

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 by PlainPatent , US Patent Intelligence Editorial Process · 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.