Where does Asahi Kasei Fibers Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Asahi Kasei Fibers Corporation ranks #9,437 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 Asahi Kasei Fibers Corporation hold?

Asahi Kasei Fibers Corporation holds 33 US utility patents granted between 2015 and 2020, spanning 45 technology areas.

What is Asahi Kasei Fibers Corporation's Innovation Score?

Asahi Kasei Fibers Corporation has an Innovation Score of 41.5 out of 100 (top 33% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Asahi Kasei Fibers Corporation focus on?

Asahi Kasei Fibers Corporation's top technology area is Y10T (Technical Subjects Covered BY Former US Classification) with 18 patents, ranking #674 of 9,657 assignees active in that subclass. Grants appear in 45 CPC subclasses total.

Is Asahi Kasei Fibers Corporation's patent grant rate increasing or decreasing?

Asahi Kasei Fibers Corporation's recent grant velocity is -97% 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 Asahi Kasei Fibers Corporation's patents?

Asahi Kasei Fibers Corporation's patents average 9.4 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 Asahi Kasei Fibers Corporation 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

Asahi Kasei Fibers Corporation

USPTO PatentsView assignee record - 33 granted patents across 45 technology areas, recorded in grant years 2015–2020. 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: Y10T (Technical Subjects Covered BY Former US Classification).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Asahi ranks #9,437 of 49,997 tracked US assignees by granted-patent volume, with 33 patents across 45 technology areas.

#9,437
of 49,997 US assignees by volume: Top 33%
by Innovation Score (41.5/100): 9.4
avg claims per patent: -97%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9437 · Foreign Corporation #9,437 · 33 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 33 grants
UPPER-Q #9,437/49,997
PHOTO-FINISH Agriculture…
CPC-WIDE Y10T · 45 areas
INNOV-PAR 41.5/100
CLAIMS-PAR 9.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -97% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Agriculture Victoria Services PTY 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 Asahi’s 41.5 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 12.2 pts (29%) Velocity 0.0 pts (0%) Breadth 23.7 pts (57%) Claim depth 5.7 pts (14%)

Qualcomm Incorporated · highest

85
Asahi Kasei Fibers · this assignee

42
BAE Systems Land &… · near

42
Mitsui Engineering… · near

42
Relativity ODA · near

42
Sinyu Technology… · near

42
3D Lighting… · lowest

7

What this shows Asahi's Innovation Score is 41.5/100 (top 33% 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 Asahi?

Each dot is one of Asahi’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). Asahi’s own 9.4 claims/patent is at or below the 12.4 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Asahi's grants concentrate

Asahi Kasei Fibers Corporation is a focused PatentsView assignee: 45 CPC subclasses with 54.5% of grants classified under Y10T (Technical Subjects Covered BY Former US Classification). Peak complete grant year is 2017 (9 grants) versus a trough of 1 in 2020. By volume, Asahi sits between Airspan IP Holdco LLC and Albany Engineered Composites, Inc..

Airspan IP Holdco

33
Aisin Keikinzoku

33
Anaergia

33
Apex MFG

33
Agriculture Victo…

33
Ai Cure

33
Aircraft Medical

33
Albany Engineered…

33
Asahi Kasei Fibers ◀

33

What this shows Asahi holds 33 patents at rank #9,426, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Asahi

By rank, the assignees closest to #9,426 in granted patent volume.

Leaders in Y10T (Technical Subjects Covered BY Former US Classification)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Asahi, neither rank-band nor same-CPC leaders (those blocks stay above). In Y10T (Technical Subjects Covered BY Former US Classification), Asahi ranks #674 of 9,657 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (42 here).

Mitsui Engineering & Shipbuilding Co., Ltd. 42 Relativity ODA LLC 42 BAE Systems Land & Armaments L.P. 42 Sinyu Technology (FUJIAN) Co., Ltd. 42

Asahi's Innovation Score vs. every tracked assignee

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

42 Top 33% higher than 67% 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 · 2015–2020

Grants by year

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

View data table

Asahi Kasei Fibers Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	18.2%
2016	8	24.2%
2017	9	27.3%
2018	4	12.1%
2019	5	15.2%
2020	1	3.0%

Which technologies does Asahi Kasei Fibers Corporation patent most?

Y10T - Technical Subjects Covered BY Former US Classification 18

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 9

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 8

D03D - Woven FABRICS; Methods OF WEAVING; Looms 8

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

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 5

B01D - Separation 5

D01D - Mechanical Methods OR Apparatus IN THE Manufacture OF Artificial Filaments, Threads, Fibres, Bristles OR Ribbons 4

G01N - Investigating OR Analysing Materials BY Determining Their Chemical OR Physical Properties 4

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

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 4

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 4

A61L - Methods OR Apparatus FOR Sterilising Materials OR Objects IN GENERAL; Disinfection, Sterilisation OR Deodorisation OF AIR; Chemical Aspects OF Bandages, Dressings, Absorbent Pads OR Surgical ARTICLES; Materials FOR Bandages, Dressings, Absorbent Pads OR Surgical Articles 3

D21H - Pulp COMPOSITIONS; Preparation Thereof NOT Covered BY Subclasses D21c OR D21D; Impregnating OR Coating OF PAPER; Treatment OF Finished Paper NOT Covered BY Class B31 OR Subclass D21G; Paper NOT Otherwise Provided FOR 3

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 3

Top 15 of 45 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

Asahi Kasei Fibers Corporation's patent record in context - here's where to go next.

Asahi Kasei Fibers Corporation's lead technology class is Y10T (Technical Subjects Covered BY Former US Classification), 54.5% of its portfolio - see every assignee active in that class. Explore Y10T
Ranked #9,437 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Asahi Kasei Fibers Corporation against Airspan IP Holdco LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.5/100 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.