Where does Mitsui Chemicals, Inc. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Mitsui Chemicals, Inc. ranks #699 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 Mitsui Chemicals, Inc. hold?

Mitsui Chemicals, Inc. holds 649 US utility patents granted between 2015 and 2025, spanning 154 technology areas.

What is Mitsui Chemicals, Inc.'s Innovation Score?

Mitsui Chemicals, Inc. has an Innovation Score of 61.0 out of 100 (top 3% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Mitsui Chemicals, Inc. focus on?

Mitsui Chemicals, Inc.'s top technology area is C08L (Compositions OF Macromolecular Compounds) with 180 patents. Grants appear in 154 CPC subclasses total.

Is Mitsui Chemicals, Inc.'s patent grant rate increasing or decreasing?

Mitsui Chemicals, Inc.'s recent grant velocity is -25% 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 Mitsui Chemicals, Inc.'s patents?

Mitsui Chemicals, Inc.'s patents average 11.8 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 Mitsui Chemicals, Inc. 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

Mitsui Chemicals, Inc.

USPTO PatentsView assignee record - 649 granted patents across 154 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: C08L (Compositions OF Macromolecular Compounds).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Mitsui ranks #699 of 49,997 tracked US assignees by granted-patent volume, with 649 patents across 154 technology areas.

#699
of 49,997 US assignees by volume: Top 3%
by Innovation Score (61.0/100): 11.8
avg claims per patent: -25%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R699 · Foreign Corporation #699 · 649 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-MID 649 grants
TOP-DECILE #699/49,997
PHOTO-FINISH Huawei Device
CPC-WIDE C08L · 154 areas
INNOV-STRONG 61.0/100
CLAIMS-PAR 11.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -25% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Huawei Device 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.

Qualcomm Incorporated · highest

85
IO Tech Group · near

61
Sealed Air (US) · near

61
Mitsui Chemicals · this assignee

61
FMR · near

61
GS Yuasa International · near

61
3D Lighting… · lowest

7

What this shows Mitsui's Innovation Score is 61.0/100 (top 3% 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.

How Mitsui's grant cadence moved

Between 2020–2024, Mitsui Chemicals, Inc. received 262 grants versus 348 in 2015–2019 (-25% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2015 at 87 grants and bottomed in 2021 at 47. Lead class C08L accounts for 27.7% of the portfolio across 154 subclasses. Volume neighbours: British Telecommunications public limited company (#695) and Palo Alto Networks, Inc. (#703).

Mitsui's three-year grant acceleration

From 2019–2021 to 2022–2024, Mitsui Chemicals, Inc. moved from 165 to 163 grants (0.99x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #1,218. See the growth leaderboard.

British Telecommu…

651
BYD

651
Time Warner Cable…

651
Huawei Device

649
Mitsui Chemicals ◀

649
Continental Autom…

648
City University O…

646
Goertek

646
Palo Alto Networks

646

What this shows Mitsui holds 649 patents at rank #699, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Mitsui

By rank, the assignees closest to #699 in granted patent volume.

Leaders in C08L (Compositions OF Macromolecular Compounds)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Mitsui, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (61 here).

Sealed Air Corporation (US) 61 IO Tech Group Ltd. 61 GS Yuasa International Ltd. 61 FMR LLC 61

Similar claim depth

Nearest assignees by average claims per patent (11.8 here).

UPI Semiconductor Corp. 11.8 avg Bedford Industries, Inc. 11.8 avg Maxell, Ltd. 11.8 avg Teijin Limited 11.8 avg

Mitsui's Innovation Score vs. every tracked assignee

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

61 Top 3% higher than 97% 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

Mitsui Chemicals, Inc. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	87	13.4%
2016	57	8.8%
2017	65	10.0%
2018	73	11.2%
2019	66	10.2%
2020	52	8.0%
2021	47	7.2%
2022	63	9.7%
2023	49	7.6%
2024	51	7.9%
2025partial year	39	6.0%

Which technologies does Mitsui Chemicals, Inc. patent most?

C08L - Compositions OF Macromolecular Compounds 180

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 178

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 148

G02B - Optical Elements, Systems OR Apparatus 121

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 97

C07C - Acyclic OR Carbocyclic Compounds 88

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 83

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 78

G02C - SPECTACLES; Sunglasses OR Goggles Insofar AS They Have THE Same Features AS SPECTACLES; Contact Lenses 78

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 77

Y10T - Technical Subjects Covered BY Former US Classification 61

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 54

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 54

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 48

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 43

Top 15 of 154 technology areas

Where it ranks

Overall rank by patents

#699

of 49,997 tracked assignees

Innovation Score

61.0 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

Mitsui Chemicals, Inc.'s patent record in context - here's where to go next.

Mitsui Chemicals, Inc.'s lead technology class is C08L (Compositions OF Macromolecular Compounds), 27.7% of its portfolio - see every assignee active in that class. Explore C08L
Ranked #699 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Mitsui Chemicals, Inc. against British Telecommunications public limited company, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 61.0/100 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.