Where does DuPont Teijin Films U.S. Limited Partnership rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), DuPont Teijin Films U.S. Limited Partnership ranks #7,836 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 Teijin Films U.S. Limited Partnership hold?

DuPont Teijin Films U.S. Limited Partnership holds 41 US utility patents granted between 2015 and 2024, spanning 35 technology areas.

What is DuPont Teijin Films U.S. Limited Partnership's Innovation Score?

DuPont Teijin Films U.S. Limited Partnership has an Innovation Score of 54.8 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%).

Is DuPont Teijin Films U.S. Limited Partnership's patent grant rate increasing or decreasing?

DuPont Teijin Films U.S. Limited Partnership's recent grant velocity is -54% 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 DuPont Teijin Films U.S. Limited Partnership's patents?

DuPont Teijin Films U.S. Limited Partnership's patents average 27.5 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.

USPTO 2015–2025 USPTO PatentsView US Corporation

DuPont Teijin Films U.S. Limited Partnership

Q: What technology areas does DuPont Teijin Films U.S. Limited Partnership focus on?

DuPont Teijin Films U.S. Limited Partnership's top technology area is C08J (WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h) with 21 patents, ranking #125 of 1,665 assignees active in that subclass. Grants appear in 35 CPC subclasses total.

Q: How is the DuPont Teijin Films U.S. Limited Partnership 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 PatentsView assignee record - 41 granted patents across 35 technology areas, recorded in grant years 2015–2024. 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: C08J (WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dupont ranks #7,836 of 49,997 tracked US assignees by granted-patent volume, with 41 patents across 35 technology areas.

#7,836
of 49,997 US assignees by volume: Top 7%
by Innovation Score (54.8/100): 27.5
avg claims per patent: -54%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7836 · US Corporation #7,836 · 41 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-DENSE · TYPE-USCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 41 grants
UPPER-Q #7,836/49,997
PHOTO-FINISH Coherex Medical
CPC-FOCUS C08J · 35 areas
INNOV-PAR 54.8/100
CLAIMS-DENSE 27.5 claims/avg
TYPE-USCORP US Corporation
VEL-DROP -54% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Coherex Medical, 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 Dupont’s 54.8 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 (24%) Velocity 6.0 pts (11%) Breadth 20.9 pts (38%) Claim depth 15.0 pts (27%)

Qualcomm Incorporated · highest

85
Apeel Technology · near

55
ABB Research · near

55
DuPont Teijin Films… · this assignee

55
iUNU · near

55
Pregis Innovative… · near

55
3D Lighting… · lowest

7

What this shows Dupont's Innovation Score is 54.8/100 (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 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 27.5 claims/patent is ABOVE the 11.5 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Dupont's grants concentrate

DuPont Teijin Films U.S. Limited Partnership is a focused PatentsView assignee: 35 CPC subclasses with 51.2% of grants classified under C08J (WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h). Peak complete grant year is 2015 (8 grants) versus a trough of 1 in 2024. By volume, Dupont sits between Coherex Medical, Inc. and Formosa Epitaxy Incorporation.

Dupont's three-year grant acceleration

DuPont Teijin Films U.S. Limited Partnership shows 9 grants in 2022–2024 against only 10 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.

Coherex Medical

41
Concealfab

41
Constellation Des…

41
Cujo

41
Element Bioscienc…

41
Exact Sciences De…

41
Fine M-tec

41
Formosa Epitaxy I…

41
Dupont Teijin Fil… ◀

41

What this shows DuPont holds 41 patents at rank #7,836, 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 #7,836 in granted patent volume.

Leaders in C08J (Working-up)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for DuPont, neither rank-band nor same-CPC leaders (those blocks stay above). In C08J (Working-up), DuPont ranks #125 of 1,665 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (55 here).

iUNU, Inc. 55 ABB Research Ltd. 55 Pregis Innovative Packaging LLC 55 Apeel Technology, Inc. 55

Dupont'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 · 2015–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

DuPont Teijin Films U.S. Limited Partnership patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	8	19.5%
2016	6	14.6%
2017	4	9.8%
2018	4	9.8%
2019	6	14.6%
2021	4	9.8%
2022	2	4.9%
2023	6	14.6%
2024	1	2.4%

Which technologies does DuPont Teijin Films U.S. Limited Partnership patent most?

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 21

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 21

C08L - Compositions OF Macromolecular Compounds 17

Y10T - Technical Subjects Covered BY Former US Classification 16

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 15

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 11

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 8

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 8

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 7

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 7

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 7

D01F - Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments 6

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 5

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 4

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 4

Top 15 of 35 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 Teijin Films U.S. Limited Partnership's patent record in context - here's where to go next.

DuPont Teijin Films U.S. Limited Partnership's lead technology class is C08J (WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h), 51.2% of its portfolio - see every assignee active in that class. Explore C08J
Ranked #7,836 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare DuPont Teijin Films U.S. Limited Partnership against Coherex Medical, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 54.8/100 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.