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

According to USPTO PatentsView (2015–2025 granted utility patents), SK-Materials Co., Ltd. ranks #30,160 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-Materials Co., Ltd. hold?

SK-Materials Co., Ltd. holds 9 US utility patents granted between 2017 and 2022, spanning 8 technology areas.

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

SK-Materials Co., Ltd. has an Innovation Score of 28.4 out of 100 (27th percentile 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-Materials Co., Ltd. focus on?

SK-Materials Co., Ltd.'s top technology area is C09K (Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere) with 6 patents, ranking #412 of 1,605 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

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

SK-Materials Co., Ltd.'s recent grant velocity is +700% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

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

SK-Materials Co., Ltd.'s patents average 15.9 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-Materials 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-Materials Co., Ltd.

USPTO PatentsView assignee record - 9 granted patents across 8 technology areas, recorded in grant years 2017–2022. 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: C09K (Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sk-materials ranks #30,160 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 8 technology areas.

#30,160
of 49,997 US assignees by volume: 27th percentile
by Innovation Score (28.4/100): 15.9
avg claims per patent: +700%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R30160 · Foreign Corporation #30,160 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #30,160/49,997
PHOTO-FINISH Sisvel International
CPC-NARROW C09K · 8 areas
INNOV-THIN 28.4/100
CLAIMS-RICH 15.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +700% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sisvel International SA (±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-materials’s 28.4 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 8.0 pts (28%) Velocity 1.0 pts (4%) Breadth 10.0 pts (35%) Claim depth 9.5 pts (33%)

Qualcomm Incorporated · highest

85
SK-Materials · this assignee

28
3D Lighting… · lowest

7

What this shows Sk-materials's Innovation Score is 28.4/100 (27th percentile 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-materials?

Each dot is one of Sk-materials’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-materials’s own 15.9 claims/patent is ABOVE the 12.4 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Sk-materials's grants concentrate

SK-Materials Co., Ltd. is a focused PatentsView assignee: 8 CPC subclasses with 66.7% of grants classified under C09K (Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere). Peak complete grant year is 2021 (5 grants) versus a trough of 1 in 2017. By volume, Sk-materials sits between Sisvel International SA and Sleeveit LLC.

Sk-materials's three-year grant acceleration

SK-Materials Co., Ltd. shows 1 grants in 2022–2024 against only 7 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.

Sisvel Internatio…

9
SK GAS

9
SK Techx

9
SK microworks sol…

9
SKF Canada

9
Skinprotect SDN B…

9
SLD Technology

9
Sleeveit

9
Sk-materials ◀

9

What this shows SK-Materials holds 9 patents at rank #30,059, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near SK-Materials

By rank, the assignees closest to #30,059 in granted patent volume.

Leaders in C09K (Materials FOR Miscellaneous Applications)

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

Sk-materials's Innovation Score vs. every tracked assignee

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

28 27th percentile higher than 27% 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 · 2017–2022

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

SK-Materials Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	11.1%
2020	2	22.2%
2021	5	55.6%
2022	1	11.1%

Which technologies does SK-Materials Co., Ltd. patent most?

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 6

H01L - Semiconductor Devices NOT Covered BY Class H10 6

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 4

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 4

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 2

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

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

C09G - Polishing Compositions ; SKI Waxes 1

Top 8 of 8 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-Materials Co., Ltd.'s patent record in context - here's where to go next.

SK-Materials Co., Ltd.'s lead technology class is C09K (Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere), 66.7% of its portfolio - see every assignee active in that class. Explore C09K
Ranked #30,160 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare SK-Materials Co., Ltd. against Sisvel International SA, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 28.4/100 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.