Where does Dong-A ST Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dong-A ST Co., Ltd. ranks #12,417 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 Dong-A ST Co., Ltd. hold?

Dong-A ST Co., Ltd. holds 24 US utility patents granted between 2015 and 2025, spanning 17 technology areas.

What is Dong-A ST Co., Ltd.'s Innovation Score?

Dong-A ST Co., Ltd. has an Innovation Score of 40.3 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 Dong-A ST Co., Ltd. focus on?

Dong-A ST Co., Ltd.'s top technology area is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations) with 23 patents, ranking #848 of 6,058 assignees active in that subclass. Grants appear in 17 CPC subclasses total.

Is Dong-A ST Co., Ltd.'s patent grant rate increasing or decreasing?

Dong-A ST Co., Ltd.'s recent grant velocity is -23% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Dong-A ST Co., Ltd.'s patents?

Dong-A ST Co., Ltd.'s patents average 13.3 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 Dong-A ST 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

Dong-A ST Co., Ltd.

USPTO PatentsView assignee record - 24 granted patents across 17 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: A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Dong-a ranks #12,417 of 49,997 tracked US assignees by granted-patent volume, with 24 patents across 17 technology areas.

#12,417
of 49,997 US assignees by volume: Top 36%
by Innovation Score (40.3/100): 13.3
avg claims per patent: -23%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R12417 · Foreign Corporation #12,417 · 24 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 24 grants
UPPER-Q #12,417/49,997
PHOTO-FINISH Dialog Semiconductor…
CPC-FOCUS A61P · 17 areas
INNOV-PAR 40.3/100
CLAIMS-RICH 13.3 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -23% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dialog Semiconductor Korea Inc. (±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 Dong-a’s 40.3 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 11.1 pts (27%) Velocity 6.7 pts (17%) Breadth 14.6 pts (36%) Claim depth 8.0 pts (20%)

Qualcomm Incorporated · highest

85
Dong-A ST · this assignee

40
3D Lighting… · lowest

7

What this shows Dong-a's Innovation Score is 40.3/100 (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 Dong-a?

Each dot is one of Dong-a’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). Dong-a’s own 13.3 claims/patent is at or below the 16.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Dong-a's grants concentrate

Dong-A ST Co., Ltd. is a focused PatentsView assignee: 17 CPC subclasses with 95.8% of grants classified under A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations). Peak complete grant year is 2017 (7 grants) versus a trough of 1 in 2015. By volume, Dong-a sits between Dialog Semiconductor Korea Inc. and Dyno Nobel Inc..

Dong-a's three-year grant acceleration

Dong-A ST Co., Ltd. shows 6 grants in 2022–2024 against only 6 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.

Dialog Semiconduc…

24
Digitaloptics

24
Direct Cursus Tec…

24
Domain Surgical

24
Doppler Labs

24
Dow Pharmaceutica…

24
Dutch Clips

24
Dyno Nobel

24
Dong-a ST ◀

24

What this shows Dong-A holds 24 patents at rank #12,419, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dong-A

By rank, the assignees closest to #12,419 in granted patent volume.

Leaders in A61P (Specific Therapeutic Activity OF Chemical Compounds OR Me…)

Other assignees with the most granted patents in Dong-A's primary technology class.

Dong-a'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 · 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

Dong-A ST Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	4.2%
2016	1	4.2%
2017	7	29.2%
2018	2	8.3%
2019	2	8.3%
2020	3	12.5%
2021	1	4.2%
2022	1	4.2%
2023	2	8.3%
2024	3	12.5%
2025partial year	1	4.2%

Which technologies does Dong-A ST Co., Ltd. patent most?

A61P - Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations 23

A61K - Preparations FOR Medical, Dental OR Toiletry Purposes 18

C07D - Heterocyclic Compounds 10

A23L - Foods, Foodstuffs OR Non-alcoholic Beverages, NOT Otherwise Provided FOR; Preparation OR Treatment Thereof 5

A23V - Indexing Scheme Relating TO Foods, Foodstuffs OR Non-alcoholic Beverages AND Lactic OR Propionic Acid Bacteria Used IN Foodstuffs OR Food Preparation 4

C07K - Peptides 4

Y02A - Technologies FOR Adaptation TO Climate Change 2

C07F - Acyclic, Carbocyclic OR Heterocyclic Compounds Containing Elements Other Than Carbon, Hydrogen, Halogen, Oxygen, Nitrogen, Sulfur, Selenium OR Tellurium 2

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

A21D - Treatment OF Flour OR Dough FOR Baking, e.g. BY Addition OF MATERIALS; BAKING; Bakery Products 1

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 1

A61F - Filters Implantable Into Blood VESSELS; PROSTHESES; Devices Providing Patency TO, OR Preventing Collapsing OF, Tubular Structures OF THE Body, e.g. STENTS; Orthopaedic, Nursing OR Contraceptive DEVICES; FOMENTATION; Treatment OR Protection OF Eyes OR EARS; Bandages, Dressings OR Absorbent PADS; Firs 1

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 1

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

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 1

Top 15 of 17 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

Dong-A ST Co., Ltd.'s patent record in context - here's where to go next.

Dong-A ST Co., Ltd.'s lead technology class is A61P (Specific Therapeutic Activity OF Chemical Compounds OR Medicinal Preparations), 95.8% of its portfolio - see every assignee active in that class. Explore A61P
Ranked #12,417 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dong-A ST Co., Ltd. against Dialog Semiconductor Korea Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 40.3/100 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.