Where does SK keyfoundry Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), SK keyfoundry Inc. ranks #7,928 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 keyfoundry Inc. hold?

SK keyfoundry Inc. holds 41 US utility patents granted between 2024 and 2025, spanning 13 technology areas.

What is SK keyfoundry Inc.'s Innovation Score?

SK keyfoundry Inc. has an Innovation Score of 55.2 out of 100 (top 7% 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 keyfoundry Inc. focus on?

SK keyfoundry Inc.'s top technology area is H10D (Inorganic Electric Semiconductor Devices) with 26 patents, ranking #234 of 1,402 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

Is SK keyfoundry Inc.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for SK keyfoundry Inc..

What does claim depth mean for SK keyfoundry Inc.'s patents?

SK keyfoundry Inc.'s patents average 15.8 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 keyfoundry Inc. 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 keyfoundry Inc.

USPTO PatentsView assignee record - 41 granted patents across 13 technology areas, recorded in grant years 2024–2025. 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: H10D (Inorganic Electric Semiconductor Devices).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, SK ranks #7,928 of 49,997 tracked US assignees by granted-patent volume, with 41 patents across 13 technology areas.

#7,928
of 49,997 US assignees by volume: Top 7%
by Innovation Score (55.2/100): 15.8
avg claims per patent

USPTO PatentsView assignee plate

Corpus R7928 · Foreign Corporation #7,928 · 41 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 41 grants
UPPER-Q #7,928/49,997
PHOTO-FINISH Sciocs
CPC-FOCUS H10D · 13 areas
INNOV-PAR 55.2/100
CLAIMS-RICH 15.8 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2024–2025 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Sciocs Company Limited (±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 55.2 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 12.9 pts (23%) Velocity 20.0 pts (36%) Breadth 12.7 pts (23%) Claim depth 9.5 pts (17%)

Qualcomm Incorporated · highest

85
Cytec Industries · near

55
Norwegian University… · near

55
SK keyfoundry · this assignee

55
STC UNM · near

55
Danfoss (TIANJIN) · near

55
3D Lighting… · lowest

7

What this shows SK's Innovation Score is 55.2/100 (top 7% 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 15.8 claims/patent is ABOVE the 12.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where SK's grants concentrate

SK keyfoundry Inc. is a focused PatentsView assignee: 13 CPC subclasses with 63.4% of grants classified under H10D (Inorganic Electric Semiconductor Devices). By volume, SK sits between Sciocs Company Limited and Supersonic Imagine.

SK's three-year grant acceleration

SK keyfoundry Inc. shows 17 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.

Sciocs

41
Sekisui Polymatech

41
Shenzhen Voxtech

41
Shya Hsin Packagi…

41
SLM Solutions Gro…

41
Solidia

41
Southern Taiwan U…

41
Supersonic Imagine

41
SK keyfoundry ◀

41

What this shows SK holds 41 patents at rank #7,924, 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 #7,924 in granted patent volume.

Leaders in H10D (Inorganic Electric Semiconductor Devices)

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 H10D (Inorganic Electric Semiconductor Devices), SK ranks #234 of 1,402 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (55 here).

Norwegian University OF Science AND Technology (NTNU) 55 Cytec Industries, Inc. 55 STC.UNM 55 Danfoss (TIANJIN) Ltd. 55

SK's Innovation Score vs. every tracked assignee

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

55 Top 7% higher than 93% 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 · 2024–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2024–2019 baseline. Full figures in the table below.

View data table

SK keyfoundry Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2024	17	41.5%
2025partial year	24	58.5%

Which technologies does SK keyfoundry Inc. patent most?

H10D - Inorganic Electric Semiconductor Devices 26

H01L - Semiconductor Devices NOT Covered BY Class H10 16

G11C - Static Stores 10

H10B - Electronic Memory Devices 5

H01G - CAPACITORS; Capacitors, Rectifiers, Detectors, Switching Devices, Light-sensitive OR Temperature-sensitive Devices OF THE Electrolytic Type 4

H03K - Pulse Technique 2

H03M - CODING; DECODING; Code Conversion IN General 2

G06F - Electric Digital Data Processing 1

H01C - Resistors 1

G09G - Arrangements OR Circuits FOR Control OF Indicating Devices Using Static Means TO Present Variable Information 1

G03F - Photomechanical Production OF Textured OR Patterned Surfaces, e.g. FOR Printing, FOR Processing OF Semiconductor DEVICES; Materials THEREFOR; Originals THEREFOR; Apparatus Specially Adapted THEREFOR; 1

H10N - Electric Solid-state Devices NOT Otherwise Provided FOR 1

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

Top 13 of 13 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 keyfoundry Inc.'s patent record in context - here's where to go next.

SK keyfoundry Inc.'s lead technology class is H10D (Inorganic Electric Semiconductor Devices), 63.4% of its portfolio - see every assignee active in that class. Explore H10D
Ranked #7,928 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare SK keyfoundry Inc. against Sciocs Company Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 55.2/100 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.