Where does Mitsui Chemicals Asahi Life Materials Co. Ltd rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Mitsui Chemicals Asahi Life Materials Co. Ltd ranks #36,523 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 Asahi Life Materials Co. Ltd hold?

Mitsui Chemicals Asahi Life Materials Co. Ltd holds 7 US utility patents granted between 2024 and 2025, spanning 10 technology areas.

What is Mitsui Chemicals Asahi Life Materials Co. Ltd's Innovation Score?

Mitsui Chemicals Asahi Life Materials Co. Ltd has an Innovation Score of 45.9 out of 100 (top 22% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Mitsui Chemicals Asahi Life Materials Co. Ltd's patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Mitsui Chemicals Asahi Life Materials Co. Ltd.

What does claim depth mean for Mitsui Chemicals Asahi Life Materials Co. Ltd's patents?

Mitsui Chemicals Asahi Life Materials Co. Ltd's patents average 12.6 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Mitsui Chemicals Asahi Life Materials Co. Ltd

Q: What technology areas does Mitsui Chemicals Asahi Life Materials Co. Ltd focus on?

Mitsui Chemicals Asahi Life Materials Co. Ltd's top technology area is D04H (Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple Fibres, Filaments OR Yarns, Bonded With AT Least ONE Web-like Material During Their Consolidation) with 6 patents, ranking #53 of 323 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

Q: How is the Mitsui Chemicals Asahi Life Materials 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 PatentsView assignee record - 7 granted patents across 10 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: D04H (Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple FI).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Mitsui ranks #36,523 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 10 technology areas.

#36,523
of 49,997 US assignees by volume: Top 22%
by Innovation Score (45.9/100): 12.6
avg claims per patent

USPTO PatentsView assignee plate

Corpus R36523 · Foreign Corporation #36,523 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #36,523/49,997
PHOTO-FINISH Minute KEY
CPC-FOCUS D04H · 10 areas
INNOV-PAR 45.9/100
CLAIMS-RICH 12.6 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2024–2025 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Minute KEY 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 Mitsui’s 45.9 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 7.2 pts (16%) Velocity 20.0 pts (44%) Breadth 11.2 pts (24%) Claim depth 7.5 pts (16%)

Qualcomm Incorporated · highest

85
Mitsui Chemicals… · this assignee

46
3D Lighting… · lowest

7

What this shows Mitsui's Innovation Score is 45.9/100 (top 22% 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 Mitsui?

Each dot is one of Mitsui’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). Mitsui’s own 12.6 claims/patent is ABOVE the 10.7 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Mitsui's grants concentrate

Mitsui Chemicals Asahi Life Materials Co. Ltd is a focused PatentsView assignee: 10 CPC subclasses with 85.7% of grants classified under D04H (Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple FI). By volume, Mitsui sits between Minute KEY Inc. and Mnemonics, Inc..

Mitsui's three-year grant acceleration

Mitsui Chemicals Asahi Life Materials Co. Ltd shows 4 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.

Minute KEY

7
Mission Secure

7
Mitani Valve

7
Mitsubishi Electr…

7
MK Electron

7
MMI Semiconductor

7
Mmi-ipco

7
Mnemonics

7
Mitsui Chemicals… ◀

7

What this shows Mitsui holds 7 patents at rank #36,404, 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 #36,404 in granted patent volume.

Leaders in D04H (Making Textile Fabrics)

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

Mitsui's Innovation Score vs. every tracked assignee

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

46 Top 22% higher than 78% 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

Mitsui Chemicals Asahi Life Materials Co. Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2024	4	57.1%
2025partial year	3	42.9%

Which technologies does Mitsui Chemicals Asahi Life Materials Co. Ltd patent most?

D04H - Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple Fibres, Filaments OR Yarns, Bonded With AT Least ONE Web-like Material During Their Consolidation 6

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 5

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 4

D01F - Chemical Features IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR RIBBONS; Apparatus Specially Adapted FOR THE Manufacture OF Carbon Filaments 3

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 3

G10K - Sound-producing DEVICES; Methods OR Devices FOR Protecting Against, OR FOR Damping, Noise OR Other Acoustic Waves IN GENERAL; Acoustics NOT Otherwise Provided FOR 2

D01D - Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons 2

A47L - Domestic Washing OR Cleaning ; Suction Cleaners IN General 1

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 1

D06M - Treatment, NOT Provided FOR Elsewhere IN Class D06, OF Fibres, Threads, Yarns, Fabrics, Feathers OR Fibrous Goods Made From Such Materials 1

Top 10 of 10 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

Mitsui Chemicals Asahi Life Materials Co. Ltd's patent record in context - here's where to go next.

Mitsui Chemicals Asahi Life Materials Co. Ltd's lead technology class is D04H (Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple FI), 85.7% of its portfolio - see every assignee active in that class. Explore D04H
Ranked #36,523 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Mitsui Chemicals Asahi Life Materials Co. Ltd against Minute KEY Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.9/100 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.