USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp.

Q: Where does Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp. ranks #18,523 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

Q: Is Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp..

Q: How is the Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp. 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 PatentsView assignee record - 15 granted patents across 18 technology areas, recorded in grant years 2020–2025. 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

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The verdict

According to USPTO PatentsView, Dalian ranks #18,523 of 49,997 tracked US assignees by granted-patent volume, with 15 patents across 18 technology areas.

#18,523
of 49,997 US assignees by volume: Top 17%
by Innovation Score (48.3/100): 17.3
avg claims per patent

USPTO PatentsView assignee plate

Corpus R18523 · Foreign Corporation #18,523 · 15 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 15 grants
MID-PACK #18,523/49,997
PHOTO-FINISH CustomArray
CPC-FOCUS B01J · 18 areas
INNOV-PAR 48.3/100
CLAIMS-RICH 17.3 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2020–2025 · 6y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: CustomArray, Inc. (±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 Dalian’s 48.3 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 9.6 pts (20%) Velocity 13.3 pts (28%) Breadth 15.0 pts (31%) Claim depth 10.4 pts (22%)

Qualcomm Incorporated · highest

85
Dalian Research… · this assignee

48
3D Lighting… · lowest

7

What this shows Dalian's Innovation Score is 48.3/100 (top 17% 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 Dalian?

Each dot is one of Dalian’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). Dalian’s own 17.3 claims/patent is ABOVE the 10.9 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Dalian's grants concentrate

Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp. is a focused PatentsView assignee: 18 CPC subclasses with 73.3% of grants classified under B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus). Peak complete grant year is 2024 (4 grants) versus a trough of 2 in 2020. By volume, Dalian sits between CustomArray, Inc. and Delsey.

Dalian's three-year grant acceleration

Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp. shows 8 grants in 2022–2024 against only 4 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Customarray

15
Cyph

15
Dadco

15
Daedong Industrial

15
Dankook Universit…

15
DCG Systems

15
Decision Sciences…

15
Delsey

15
Dalian Research I… ◀

15

What this shows Dalian holds 15 patents at rank #18,522, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dalian

By rank, the assignees closest to #18,522 in granted patent volume.

Leaders in B01J (Chemical OR Physical Processes)

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

Dalian's Innovation Score vs. every tracked assignee

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

48 Top 17% higher than 83% 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 · 2020–2025

Grants by year

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

View data table

Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2020	2	13.3%
2021	2	13.3%
2022	2	13.3%
2023	2	13.3%
2024	4	26.7%
2025partial year	3	20.0%

Which technologies does Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp. patent most?

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 11

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 9

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 2

B01D - Separation 2

C07C - Acyclic OR Carbocyclic Compounds 2

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 2

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

C08L - Compositions OF Macromolecular Compounds 1

Y02C - Capture, Storage, Sequestration OR Disposal OF Greenhouse Gases [GHG] 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

Y02A - Technologies FOR Adaptation TO Climate Change 1

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 1

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 1

C01F - Compounds OF THE Metals Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium, OR OF THE Rare-earth Metals 1

E21B - Earth OR Rock DRILLING; Obtaining OIL, GAS, Water, Soluble OR Meltable Materials OR A Slurry OF Minerals From Wells 1

Top 15 of 18 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

Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp.'s patent record in context - here's where to go next.

Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp.'s lead technology class is B01J (Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus), 73.3% of its portfolio - see every assignee active in that class. Explore B01J
Ranked #18,523 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dalian Research Institute OF Petroleum AND Petrochemicals, Sinopec Corp. against CustomArray, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 48.3/100 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.