Where does SK Innovation Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), SK Innovation Co., Ltd. ranks #751 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 SK Innovation Co., Ltd. hold?

SK Innovation Co., Ltd. holds 610 US utility patents granted between 2015 and 2025, spanning 133 technology areas.

What is SK Innovation Co., Ltd.'s Innovation Score?

SK Innovation Co., Ltd. has an Innovation Score of 61.8 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does SK Innovation Co., Ltd. focus on?

SK Innovation Co., Ltd.'s top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 256 patents, ranking #59 of 5,963 assignees active in that subclass. Grants appear in 133 CPC subclasses total.

Is SK Innovation Co., Ltd.'s patent grant rate increasing or decreasing?

SK Innovation Co., Ltd.'s recent grant velocity is +5% 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 SK Innovation Co., Ltd.'s patents?

SK Innovation Co., Ltd.'s patents average 11.3 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 SK Innovation Co., Ltd. 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

SK Innovation Co., Ltd.

USPTO PatentsView assignee record - 610 granted patents across 133 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, SK ranks #751 of 49,997 tracked US assignees by granted-patent volume, with 610 patents across 133 technology areas.

#751
of 49,997 US assignees by volume: Top 3%
by Innovation Score (61.8/100): 11.3
avg claims per patent: +5%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R751 · Foreign Corporation #751 · 610 grants

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

GRANTS-MID 610 grants
TOP-DECILE #751/49,997
PHOTO-FINISH Renault S
CPC-WIDE Y02E · 133 areas
INNOV-STRONG 61.8/100
CLAIMS-PAR 11.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +5% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Renault S.A.S. (±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 SK’s 61.8 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 22.2 pts (36%) Velocity 7.8 pts (13%) Breadth 25.0 pts (40%) Claim depth 6.8 pts (11%)

Qualcomm Incorporated · highest

85
Sintokogio · near

62
SK Innovation · this assignee

62
James R Glidewell… · near

62
Oregon Health &… · near

62
Socionext · near

62
3D Lighting… · lowest

7

What this shows SK's Innovation Score is 61.8/100 (top 3% 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 SK?

Each dot is one of SK’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). SK’s own 11.3 claims/patent is at or below the 15.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How SK's grant cadence moved

Between 2020–2024, SK Innovation Co., Ltd. received 290 grants versus 276 in 2015–2019 (+5% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2017 at 77 grants and bottomed in 2015 at 43. Lead class Y02E accounts for 42% of the portfolio across 133 subclasses. Volume neighbours: Spectrum Brands, Inc. (#747) and Essilor International (#755).

SK's three-year grant acceleration

From 2019–2021 to 2022–2024, SK Innovation Co., Ltd. moved from 158 to 186 grants (1.18x 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 #823. See the growth leaderboard.

Spectrum Brands

612
Yahoo Holdings

611
Renault S

610
Roche Diabetes Ca…

610
SK Innovation ◀

610
Oki Data

609
University of Uta…

608
GE Aviation Syste…

607
Essilor Internati…

606

What this shows SK holds 610 patents at rank #751, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near SK

By rank, the assignees closest to #751 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for SK, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02E (Reduction OF Greenhouse GAS [GHG] Emissions), SK ranks #59 of 5,963 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (62 here).

Sintokogio, Ltd. 62 Socionext Inc. 62 Oregon Health & Science University 62 James R. Glidewell Dental Ceramics, Inc. 62

Similar claim depth

Nearest assignees by average claims per patent (11.3 here).

Gwangju Institute OF Science AND Technology 11.3 avg Beijing Qihoo Techology Company Limited 11.3 avg Ewha UNIVERSITY—INDUSTRY Collaboration Foundation 11.3 avg Nippon Soken, Inc. 11.3 avg

SK's Innovation Score vs. every tracked assignee

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

62 Top 3% higher than 97% 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

SK Innovation Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	43	7.0%
2016	45	7.4%
2017	77	12.6%
2018	57	9.3%
2019	54	8.9%
2020	46	7.5%
2021	58	9.5%
2022	77	12.6%
2023	45	7.4%
2024	64	10.5%
2025partial year	44	7.2%

Which technologies does SK Innovation Co., Ltd. patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 256

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 254

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 101

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 76

C07C - Acyclic OR Carbocyclic Compounds 74

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 70

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 66

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 59

C08L - Compositions OF Macromolecular Compounds 45

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 35

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 35

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 29

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 27

Y02T - Climate Change Mitigation Technologies Related TO Transportation 26

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 24

Top 15 of 133 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

SK Innovation Co., Ltd.'s patent record in context - here's where to go next.

SK Innovation Co., Ltd.'s lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 42% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #751 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare SK Innovation Co., Ltd. against Spectrum Brands, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 61.8/100 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.