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

According to USPTO PatentsView (2015–2025 granted utility patents), SK On Co., Ltd. ranks #1,223 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 On Co., Ltd. hold?

SK On Co., Ltd. holds 348 US utility patents granted between 2023 and 2025, spanning 46 technology areas.

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

SK On Co., Ltd. has an Innovation Score of 71.3 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%).

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

SK On Co., Ltd.'s top technology area is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy) with 331 patents, ranking #23 of 2,332 assignees active in that subclass. Grants appear in 46 CPC subclasses total.

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

Insufficient historical data is available to calculate a velocity trend for SK On Co., Ltd..

What does claim depth mean for SK On Co., Ltd.'s patents?

SK On Co., Ltd.'s patents average 11.9 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 On 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 On Co., Ltd.

USPTO PatentsView assignee record - 348 granted patents across 46 technology areas, recorded in grant years 2023–2025. 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: H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, SK ranks #1,223 of 49,997 tracked US assignees by granted-patent volume, with 348 patents across 46 technology areas.

#1,223
of 49,997 US assignees by volume: Top 1%
by Innovation Score (71.3/100): 11.9
avg claims per patent

USPTO PatentsView assignee plate

Corpus R1223 · Foreign Corporation #1,223 · 348 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MID 348 grants
TOP-DECILE #1,223/49,997
PHOTO-FINISH Mimaki Engineering
CPC-WIDE H01M · 46 areas
INNOV-STRONG 71.3/100
CLAIMS-PAR 11.9 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2025 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Mimaki Engineering Co., 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 SK’s 71.3 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 20.2 pts (28%) Velocity 20.0 pts (28%) Breadth 24.0 pts (34%) Claim depth 7.1 pts (10%)

Qualcomm Incorporated · highest

85
Baidu USA · near

71
Beijing Voyager… · near

71
Jpmorgan Chase Bank… · near

71
InterDigital Patent… · near

71
SK On · this assignee

71
3D Lighting… · lowest

7

What this shows SK's Innovation Score is 71.3/100 (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 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 11.9 claims/patent is at or below the 13.1 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.

Where SK's grants concentrate

SK On Co., Ltd. is a focused PatentsView assignee: 46 CPC subclasses with 95.1% of grants classified under H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy). Peak complete grant year is 2024 (154 grants) versus a trough of 89 in 2023. By volume, SK sits between Deutsche Telekom AG and Aisan Kogyo Kabushiki Kaisha.

SK's three-year grant acceleration

SK On Co., Ltd. shows 243 grants in 2022–2024 against only 0 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.

Deutsche Telekom

349
Emerson Electric

349
Razer (Asia-pacif…

349
Mimaki Engineering

348
SK On ◀

348
Janssen Biotech

347
King Slide Techno…

347
Tusimple

347
Aisan Kogyo

346

What this shows SK holds 348 patents at rank #1,223, 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 #1,223 in granted patent volume.

Leaders in H01M (Processes OR Means)

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 H01M (Processes OR Means), SK ranks #23 of 2,332 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (71 here).

InterDigital Patent Holdings, Inc. 71 Jpmorgan Chase Bank, N.A. 71 Beijing Voyager Technology Co., Ltd. 71 Baidu USA LLC 71

Similar claim depth

Nearest assignees by average claims per patent (11.9 here).

Karl Storz SE & Co. KG 11.9 avg Shenzhen Institutes OF Advanced Technology 11.9 avg Dolby International AB 11.9 avg Olympus Corporation 11.9 avg

SK's Innovation Score vs. every tracked assignee

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

71 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 · 2023–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

SK On Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	89	25.6%
2024	154	44.3%
2025partial year	105	30.2%

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

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 331

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 331

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 50

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 28

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 24

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 19

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 12

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 10

B65H - Handling Thin OR Filamentary Material, e.g. Sheets, Webs, Cables 7

Y02T - Climate Change Mitigation Technologies Related TO Transportation 7

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 5

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 4

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 4

F26B - Drying Solid Materials OR Objects BY Removing Liquid Therefrom 4

C07C - Acyclic OR Carbocyclic Compounds 4

Top 15 of 46 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 On Co., Ltd.'s patent record in context - here's where to go next.

SK On Co., Ltd.'s lead technology class is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy), 95.1% of its portfolio - see every assignee active in that class. Explore H01M
Ranked #1,223 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare SK On Co., Ltd. against Deutsche Telekom AG, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 71.3/100 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.