Where does S-oil Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), S-oil Corporation ranks #25,116 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 S-oil Corporation hold?

S-oil Corporation holds 11 US utility patents granted between 2015 and 2025, spanning 14 technology areas.

What is S-oil Corporation's Innovation Score?

S-oil Corporation has an Innovation Score of 50.4 out of 100 (top 13% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does S-oil Corporation focus on?

S-oil Corporation's top technology area is Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods) with 5 patents, ranking #1,340 of 4,985 assignees active in that subclass. Grants appear in 14 CPC subclasses total.

Is S-oil Corporation's patent grant rate increasing or decreasing?

S-oil Corporation's recent grant velocity is +250% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for S-oil Corporation's patents?

S-oil Corporation's patents average 14.3 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 S-oil 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

S-oil Corporation

USPTO PatentsView assignee record - 11 granted patents across 14 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: Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, S-oil ranks #25,116 of 49,997 tracked US assignees by granted-patent volume, with 11 patents across 14 technology areas.

#25,116
of 49,997 US assignees by volume: Top 13%
by Innovation Score (50.4/100): 14.3
avg claims per patent: +250%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R25116 · Foreign Corporation #25,116 · 11 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 11 grants
MID-PACK #25,116/49,997
PHOTO-FINISH Rowan Holding
CPC-FOCUS Y02P · 14 areas
INNOV-PAR 50.4/100
CLAIMS-RICH 14.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +250% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Rowan Holding, LLC (±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 S-oil’s 50.4 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 8.6 pts (17%) Velocity 20.0 pts (40%) Breadth 13.2 pts (26%) Claim depth 8.6 pts (17%)

Qualcomm Incorporated · highest

85
S-oil · this assignee

50
3D Lighting… · lowest

7

What this shows S-oil's Innovation Score is 50.4/100 (top 13% 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 S-oil?

Each dot is one of S-oil’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). S-oil’s own 14.3 claims/patent is at or below the 16.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where S-oil's grants concentrate

S-oil Corporation is a focused PatentsView assignee: 14 CPC subclasses with 45.5% of grants classified under Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods). Peak complete grant year is 2023 (3 grants) versus a trough of 1 in 2015. By volume, S-oil sits between Rowan Holding, LLC and Saint-gobain Abrasives, INC./SAINT-GOBAIN Abrasifs.

S-oil's three-year grant acceleration

S-oil Corporation shows 6 grants in 2022–2024 against only 2 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.

Rowan Holding

11
Royal Building Pr…

11
Royal Consumer Pr…

11
Rxfunction

11
Sabaf S P A

11
Safeguard Biosyst…

11
Safran Vectronix

11
Saint-gobain Abra…

11
S-oil ◀

11

What this shows S-oil holds 11 patents at rank #25,100, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near S-oil

By rank, the assignees closest to #25,100 in granted patent volume.

Leaders in Y02P (Climate Change Mitigation Technologies IN THE Production…)

Other assignees with the most granted patents in S-oil's primary technology class.

S-oil's Innovation Score vs. every tracked assignee

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

50 Top 13% higher than 87% 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

S-oil Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	9.1%
2019	1	9.1%
2021	1	9.1%
2023	3	27.3%
2024	3	27.3%
2025partial year	2	18.2%

Which technologies does S-oil Corporation patent most?

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 5

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 4

C25B - Electrolytic OR Electrophoretic Processes FOR THE Production OF Compounds OR NON-METALS; Apparatus Therefor 4

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 4

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 3

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 2

B82Y - Specific Uses OR Applications OF NANOSTRUCTURES; Measurement OR Analysis OF NANOSTRUCTURES; Manufacture OR Treatment OF Nanostructures 2

C25D - Processes FOR THE Electrolytic OR Electrophoretic Production OF COATINGS; ELECTROFORMING; Apparatus Therefor 1

C10M - Lubricating Compositions ; USE OF Chemical Substances Either Alone OR AS Lubricating Ingredients IN A Lubricating Composition 1

C10N - Indexing Scheme Associated With Subclass C10m Relating TO Lubricating Compositions 1

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

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 1

C07C - Acyclic OR Carbocyclic Compounds 1

Top 14 of 14 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

S-oil Corporation's patent record in context - here's where to go next.

S-oil Corporation's lead technology class is Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods), 45.5% of its portfolio - see every assignee active in that class. Explore Y02P
Ranked #25,116 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare S-oil Corporation against Rowan Holding, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 50.4/100 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.