Where does DuPont Specialty Materials Korea Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), DuPont Specialty Materials Korea Ltd. ranks #15,971 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 DuPont Specialty Materials Korea Ltd. hold?

DuPont Specialty Materials Korea Ltd. holds 18 US utility patents granted between 2024 and 2025, spanning 13 technology areas.

What is DuPont Specialty Materials Korea Ltd.'s Innovation Score?

DuPont Specialty Materials Korea Ltd. has an Innovation Score of 35.3 out of 100 (top 50% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does DuPont Specialty Materials Korea Ltd. focus on?

DuPont Specialty Materials Korea Ltd.'s top technology area is H10K (Organic Electric Solid-state Devices) with 13 patents, ranking #173 of 791 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

Is DuPont Specialty Materials Korea Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for DuPont Specialty Materials Korea Ltd..

What does claim depth mean for DuPont Specialty Materials Korea Ltd.'s patents?

DuPont Specialty Materials Korea Ltd.'s patents average 9.5 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 DuPont Specialty Materials Korea 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

DuPont Specialty Materials Korea Ltd.

USPTO PatentsView assignee record - 18 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: H10K (Organic Electric Solid-state Devices).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dupont ranks #15,971 of 49,997 tracked US assignees by granted-patent volume, with 18 patents across 13 technology areas.

#15,971
of 49,997 US assignees by volume: Top 50%
by Innovation Score (35.3/100): 9.5
avg claims per patent

USPTO PatentsView assignee plate

Corpus R15971 · Foreign Corporation #15,971 · 18 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 18 grants
MID-PACK #15,971/49,997
PHOTO-FINISH Dongguan Zhengyang…
CPC-FOCUS H10K · 13 areas
INNOV-THIN 35.3/100
CLAIMS-PAR 9.5 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2024–2025 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Dongguan Zhengyang Electronic Mechanical 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 Dupont’s 35.3 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 10.2 pts (29%) Velocity 6.7 pts (19%) Breadth 12.7 pts (36%) Claim depth 5.7 pts (16%)

Qualcomm Incorporated · highest

85
DuPont Specialty… · this assignee

35
3D Lighting… · lowest

7

What this shows Dupont's Innovation Score is 35.3/100 (top 50% 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 Dupont?

Each dot is one of Dupont’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). Dupont’s own 9.5 claims/patent is at or below the 12.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Dupont's grants concentrate

DuPont Specialty Materials Korea Ltd. is a focused PatentsView assignee: 13 CPC subclasses with 72.2% of grants classified under H10K (Organic Electric Solid-state Devices). By volume, Dupont sits between Dongguan Zhengyang Electronic Mechanical Co. Ltd. and Ecom Instruments GMBH.

Dupont's three-year grant acceleration

DuPont Specialty Materials Korea Ltd. shows 1 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.

Dongguan Zhengyan…

18
Dorel Home Furnis…

18
Dr Falk Pharma

18
Dreame Innovation…

18
Eagleburgmann Jap…

18
EBM Papst Landshut

18
Ebner Industrieof…

18
Ecom Instruments

18
Dupont Specialty… ◀

18

What this shows DuPont holds 18 patents at rank #15,970, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near DuPont

By rank, the assignees closest to #15,970 in granted patent volume.

Leaders in H10K (Organic Electric Solid-state Devices)

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

Dupont's Innovation Score vs. every tracked assignee

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

35 Top 50% higher than 50% 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

DuPont Specialty Materials Korea Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2024	1	5.6%
2025partial year	17	94.4%

Which technologies does DuPont Specialty Materials Korea Ltd. patent most?

H10K - Organic Electric Solid-state Devices 13

C07D - Heterocyclic Compounds 11

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

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 5

C08L - Compositions OF Macromolecular Compounds 4

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; 2

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 2

C07C - Acyclic OR Carbocyclic Compounds 2

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 1

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 1

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 1

C07B - General Methods OF Organic CHEMISTRY; Apparatus Therefor 1

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

DuPont Specialty Materials Korea Ltd.'s patent record in context - here's where to go next.

DuPont Specialty Materials Korea Ltd.'s lead technology class is H10K (Organic Electric Solid-state Devices), 72.2% of its portfolio - see every assignee active in that class. Explore H10K
Ranked #15,971 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare DuPont Specialty Materials Korea Ltd. against Dongguan Zhengyang Electronic Mechanical Co. Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.3/100 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.