Where does Kuraray Fastening Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Kuraray Fastening Co., Ltd. ranks #13,523 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 Kuraray Fastening Co., Ltd. hold?

Kuraray Fastening Co., Ltd. holds 22 US utility patents granted between 2016 and 2025, spanning 24 technology areas.

What is Kuraray Fastening Co., Ltd.'s Innovation Score?

Kuraray Fastening Co., Ltd. has an Innovation Score of 43.9 out of 100 (top 27% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kuraray Fastening Co., Ltd. focus on?

Kuraray Fastening Co., Ltd.'s top technology area is A44B (Buttons, Pins, Buckles, Slide Fasteners, OR THE Like) with 21 patents, ranking #7 of 276 assignees active in that subclass. Grants appear in 24 CPC subclasses total.

Is Kuraray Fastening Co., Ltd.'s patent grant rate increasing or decreasing?

Kuraray Fastening Co., Ltd.'s recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Kuraray Fastening Co., Ltd.'s patents?

Kuraray Fastening Co., Ltd.'s patents average 12.0 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 Kuraray Fastening 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

Kuraray Fastening Co., Ltd.

USPTO PatentsView assignee record - 22 granted patents across 24 technology areas, recorded in grant years 2016–2025. 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: A44B (Buttons, Pins, Buckles, Slide Fasteners, OR THE Like).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Kuraray ranks #13,523 of 49,997 tracked US assignees by granted-patent volume, with 22 patents across 24 technology areas.

#13,523
of 49,997 US assignees by volume: Top 27%
by Innovation Score (43.9/100): 12.0
avg claims per patent: +100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13523 · Foreign Corporation #13,523 · 22 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-SMALL 22 grants
MID-PACK #13,523/49,997
PHOTO-FINISH Kadmon
CPC-FOCUS A44B · 24 areas
INNOV-PAR 43.9/100
CLAIMS-RICH 12.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kadmon Corporation, LLC (±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 Kuraray’s 43.9 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 10.8 pts (25%) Velocity 8.6 pts (20%) Breadth 17.3 pts (39%) Claim depth 7.2 pts (16%)

Qualcomm Incorporated · highest

85
Kuraray Fastening · this assignee

44
3D Lighting… · lowest

7

What this shows Kuraray's Innovation Score is 43.9/100 (top 27% 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 Kuraray?

Each dot is one of Kuraray’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). Kuraray’s own 12.0 claims/patent is at or below the 12.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Kuraray's grants concentrate

Kuraray Fastening Co., Ltd. is a focused PatentsView assignee: 24 CPC subclasses with 95.5% of grants classified under A44B (Buttons, Pins, Buckles, Slide Fasteners, OR THE Like). Peak complete grant year is 2024 (6 grants) versus a trough of 1 in 2022. By volume, Kuraray sits between KCC Corporation and King Faisal Specialist Hospital & Research Centre.

Kuraray's three-year grant acceleration

Kuraray Fastening Co., Ltd. shows 9 grants in 2022–2024 against only 7 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.

KCC

22
Kiefel

22
Knorr-bremse Gese…

22
Kromek

22
Kyonggi Universit…

22
Kyungshin

22
Kadmon

22
King Faisal Speci…

22
Kuraray Fastening ◀

22

What this shows Kuraray holds 22 patents at rank #13,516, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kuraray

By rank, the assignees closest to #13,516 in granted patent volume.

Leaders in A44B (Buttons)

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

Kuraray's Innovation Score vs. every tracked assignee

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

44 Top 27% higher than 73% 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 · 2016–2025

Grants by year

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

View data table

Kuraray Fastening Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	9.1%
2017	3	13.6%
2019	2	9.1%
2020	2	9.1%
2021	3	13.6%
2022	1	4.5%
2023	2	9.1%
2024	6	27.3%
2025partial year	1	4.5%

Which technologies does Kuraray Fastening Co., Ltd. patent most?

A44B - Buttons, Pins, Buckles, Slide Fasteners, OR THE Like 21

Y10T - Technical Subjects Covered BY Former US Classification 6

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 4

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 4

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 4

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

D10B - Indexing Scheme Associated With Sublasses OF Section D, Relating TO Textiles 3

C08L - Compositions OF Macromolecular Compounds 3

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 2

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 2

A44D - Indexing Scheme Relating TO Buttons, Pins, Buckles OR Slide Fasteners, AND TO Jewellery, Bracelets OR Other Personal Adornments 2

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 1

D04B - Knitting 1

A41D - OUTERWEAR; Protective GARMENTS; Accessories 1

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 1

Top 15 of 24 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

Kuraray Fastening Co., Ltd.'s patent record in context - here's where to go next.

Kuraray Fastening Co., Ltd.'s lead technology class is A44B (Buttons, Pins, Buckles, Slide Fasteners, OR THE Like), 95.5% of its portfolio - see every assignee active in that class. Explore A44B
Ranked #13,523 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kuraray Fastening Co., Ltd. against KCC Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.9/100 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.