Where does Sunko INK Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Sunko INK Co., Ltd. ranks #30,285 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 Sunko INK Co., Ltd. hold?

Sunko INK Co., Ltd. holds 9 US utility patents granted between 2019 and 2024, spanning 18 technology areas.

What is Sunko INK Co., Ltd.'s Innovation Score?

Sunko INK Co., Ltd. has an Innovation Score of 40.1 out of 100 (top 36% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Sunko INK Co., Ltd. focus on?

Sunko INK Co., Ltd.'s top technology area is C08L (Compositions OF Macromolecular Compounds) with 6 patents, ranking #553 of 2,352 assignees active in that subclass. Grants appear in 18 CPC subclasses total.

Is Sunko INK Co., Ltd.'s patent grant rate increasing or decreasing?

Sunko INK Co., Ltd.'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 Sunko INK Co., Ltd.'s patents?

Sunko INK Co., Ltd.'s patents average 14.7 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 Sunko INK 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

Sunko INK Co., Ltd.

USPTO PatentsView assignee record - 9 granted patents across 18 technology areas, recorded in grant years 2019–2024. 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: C08L (Compositions OF Macromolecular Compounds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Sunko ranks #30,285 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 18 technology areas.

#30,285
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.1/100): 14.7
avg claims per patent: +250%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R30285 · Foreign Corporation #30,285 · 9 grants

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

GRANTS-MICRO 9 grants
MID-PACK #30,285/49,997
PHOTO-FINISH Strongbridge Dublin
CPC-FOCUS C08L · 18 areas
INNOV-PAR 40.1/100
CLAIMS-RICH 14.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +250% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Strongbridge Dublin 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 Sunko’s 40.1 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 (20%) Velocity 8.3 pts (21%) Breadth 15.0 pts (37%) Claim depth 8.8 pts (22%)

Qualcomm Incorporated · highest

85
Sunko INK · this assignee

40
3D Lighting… · lowest

7

What this shows Sunko's Innovation Score is 40.1/100 (top 36% 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 Sunko?

Each dot is one of Sunko’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). Sunko’s own 14.7 claims/patent is ABOVE the 11.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Sunko's grants concentrate

Sunko INK Co., Ltd. is a focused PatentsView assignee: 18 CPC subclasses with 66.7% of grants classified under C08L (Compositions OF Macromolecular Compounds). Peak complete grant year is 2024 (3 grants) versus a trough of 2 in 2019. By volume, Sunko sits between Strongbridge Dublin Limited and Superior Transmission Parts, Inc..

Sunko's three-year grant acceleration

Sunko INK Co., Ltd. shows 5 grants in 2022–2024 against only 4 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.

Strongbridge Dubl…

9
Sumitomo Electric…

9
SUN AND Steel Sol…

9
SUN Pharma Global…

9
Sunshine Guojian…

9
Suntec

9
Super HI FI

9
Superior Transmis…

9
Sunko INK ◀

9

What this shows Sunko holds 9 patents at rank #30,110, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Sunko

By rank, the assignees closest to #30,110 in granted patent volume.

Leaders in C08L (Compositions OF Macromolecular Compounds)

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

Sunko's Innovation Score vs. every tracked assignee

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

40 Top 36% higher than 64% 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 · 2019–2024

Grants by year

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

View data table

Sunko INK Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2019	2	22.2%
2020	2	22.2%
2022	2	22.2%
2024	3	33.3%

Which technologies does Sunko INK Co., Ltd. patent most?

C08L - Compositions OF Macromolecular Compounds 6

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 5

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

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 2

B29C - Shaping OR Joining OF PLASTICS; Shaping OF Material IN A Plastic State, NOT Otherwise Provided FOR; After-treatment OF THE Shaped Products, e.g. Repairing 2

B29K - Indexing Scheme Associated With Subclasses B29b, B29c OR B29d, Relating TO Moulding Materials OR TO Materials FOR ; Moulds, ; Reinforcements, Fillers OR Preformed Parts, e.g. Inserts 2

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 2

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 1

C07D - Heterocyclic Compounds 1

D01F - Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments 1

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

D01D - Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons 1

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 1

B29D - Producing Particular Articles From Plastics OR From Substances IN A Plastic State 1

Top 15 of 18 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

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

Sunko INK Co., Ltd.'s lead technology class is C08L (Compositions OF Macromolecular Compounds), 66.7% of its portfolio - see every assignee active in that class. Explore C08L
Ranked #30,285 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Sunko INK Co., Ltd. against Strongbridge Dublin Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.1/100 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.