Where does DU Pont-mitsui Fluorochemicals Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), DU Pont-mitsui Fluorochemicals Co., Ltd. ranks #46,307 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 DU Pont-mitsui Fluorochemicals Co., Ltd. hold?

DU Pont-mitsui Fluorochemicals Co., Ltd. holds 5 US utility patents granted between 2016 and 2019, spanning 9 technology areas.

What is DU Pont-mitsui Fluorochemicals Co., Ltd.'s Innovation Score?

DU Pont-mitsui Fluorochemicals Co., Ltd. has an Innovation Score of 21.4 out of 100 (8th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is DU Pont-mitsui Fluorochemicals Co., Ltd.'s patent grant rate increasing or decreasing?

DU Pont-mitsui Fluorochemicals Co., Ltd.'s recent grant velocity is -100% 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 DU Pont-mitsui Fluorochemicals Co., Ltd.'s patents?

DU Pont-mitsui Fluorochemicals Co., Ltd.'s patents average 7.6 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 DU Pont-mitsui Fluorochemicals 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

DU Pont-mitsui Fluorochemicals Co., Ltd.

Q: What technology areas does DU Pont-mitsui Fluorochemicals Co., Ltd. focus on?

DU Pont-mitsui Fluorochemicals Co., Ltd.'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 3 patents. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 5 granted patents across 9 technology areas, recorded in grant years 2016–2019. 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, DU ranks #46,307 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 9 technology areas.

#46,307
of 49,997 US assignees by volume: 8th percentile
by Innovation Score (21.4/100): 7.6
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R46307 · Foreign Corporation #46,307 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #46,307/49,997
PHOTO-FINISH DST Diagnostische…
CPC-NARROW C08J · 9 areas
INNOV-THIN 21.4/100
CLAIMS-SPARSE 7.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: DST Diagnostische Systeme & Technologien GMBH (±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.

Qualcomm Incorporated · highest

85
DU Pont-mitsui… · this assignee

21
3D Lighting… · lowest

7

What this shows DU's Innovation Score is 21.4/100 (8th 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.

Where DU's grants concentrate

DU Pont-mitsui Fluorochemicals Co., Ltd. is a focused PatentsView assignee: 9 CPC subclasses with 60% 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 2019 (2 grants) versus a trough of 1 in 2016. By volume, DU sits between DST Diagnostische Systeme & Technologien GMBH and Dundee Sustainable Technologies Inc..

DST Diagnostische…

5
DSX Holdings

5
Dtip

5
DTT (Holdings) Pty

5
Duality Reality E…

5
Ducon—Becker Serv…

5
DUN & Bradstreet…

5
Dundee Sustainable

5
DU Pont-mitsui Fl… ◀

5

What this shows DU holds 5 patents at rank #46,175, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near DU

By rank, the assignees closest to #46,175 in granted patent volume.

Leaders in C08J (Working-up)

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

DU's Innovation Score vs. every tracked assignee

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

21 8th percentile higher than 8% 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 · 2016–2019

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

DU Pont-mitsui Fluorochemicals Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	20.0%
2017	1	20.0%
2018	1	20.0%
2019	2	40.0%

Which technologies does DU Pont-mitsui Fluorochemicals Co., Ltd. patent most?

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 3

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 3

Y10T - Technical Subjects Covered BY Former US Classification 3

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 2

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 1

C08L - Compositions OF Macromolecular Compounds 1

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

C11D - Detergent COMPOSITIONS; USE OF Single Substances AS DETERGENTS; Soap OR SOAP-MAKING; Resin SOAPS; Recovery OF Glycerol 1

Top 9 of 9 technology areas

Where it ranks

Overall rank by patents

#46,307

of 49,997 tracked assignees

Innovation Score

21.4 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

DU Pont-mitsui Fluorochemicals Co., Ltd.'s patent record in context - here's where to go next.

DU Pont-mitsui Fluorochemicals Co., Ltd.'s lead technology class is C08J (WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h), 60% of its portfolio - see every assignee active in that class. Explore C08J
Ranked #46,307 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare DU Pont-mitsui Fluorochemicals Co., Ltd. against DST Diagnostische Systeme & Technologien GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 21.4/100 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.