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

According to USPTO PatentsView (2015–2025 granted utility patents), Kuraray Co., Ltd. ranks #673 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 Co., Ltd. hold?

Kuraray Co., Ltd. holds 669 US utility patents granted between 2015 and 2025, spanning 160 technology areas.

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

Kuraray Co., Ltd. has an Innovation Score of 61.5 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 Kuraray Co., Ltd. focus on?

Kuraray Co., Ltd.'s top technology area is C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds) with 233 patents, ranking #13 of 1,231 assignees active in that subclass. Grants appear in 160 CPC subclasses total.

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

Kuraray Co., Ltd.'s recent grant velocity is +9% compared to the prior five-year period (grant years, not application filing dates). The company is maintaining or growing its granted-patent output.

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

Kuraray Co., Ltd.'s patents average 13.2 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 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 Co., Ltd.

USPTO PatentsView assignee record - 669 granted patents across 160 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: C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Kuraray ranks #673 of 49,997 tracked US assignees by granted-patent volume, with 669 patents across 160 technology areas.

#673
of 49,997 US assignees by volume: Top 3%
by Innovation Score (61.5/100): 13.2
avg claims per patent: +9%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R673 · Foreign Corporation #673 · 669 grants

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

GRANTS-MID 669 grants
TOP-DECILE #673/49,997
PHOTO-FINISH ATI ULC
CPC-WIDE C08F · 160 areas
INNOV-STRONG 61.5/100
CLAIMS-RICH 13.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +9% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: ATI Technologies ULC (±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 61.5 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 22.5 pts (37%) Velocity 6.1 pts (10%) Breadth 25.0 pts (41%) Claim depth 7.9 pts (13%)

Qualcomm Incorporated · highest

85
Kuraray · this assignee

62
Acushnet · near

61
adidas · near

61
Fudan University · near

61
Optum Services… · near

61
3D Lighting… · lowest

7

What this shows Kuraray's Innovation Score is 61.5/100 (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.

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 13.2 claims/patent is at or below the 14.1 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.

How Kuraray's grant cadence moved

Between 2020–2024, Kuraray Co., Ltd. received 318 grants versus 292 in 2015–2019 (+9% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2019 at 74 grants and bottomed in 2015 at 39. Lead class C08F accounts for 34.8% of the portfolio across 160 subclasses. Volume neighbours: General Electric Technology GMBH (#668) and thyssenkrupp AG (#676).

Kuraray's three-year grant acceleration

From 2019–2021 to 2022–2024, Kuraray Co., Ltd. moved from 205 to 187 grants (0.91x 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 #1,435. See the growth leaderboard.

General Electric…

670
TE Connectivity

670
ATI ULC

669
BAE Systems

669
King Abdullah Uni…

669
Kuraray ◀

669
Socionext

668
Takeda Pharmaceut…

668
thyssenkrupp

665

What this shows Kuraray holds 669 patents at rank #672, 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 #672 in granted patent volume.

Leaders in C08F (Macromolecular Compounds Obtained BY Reactions Only Invol…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Kuraray, neither rank-band nor same-CPC leaders (those blocks stay above). In C08F (Macromolecular Compounds Obtained BY Reactions Only Invol…), Kuraray ranks #13 of 1,231 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (62 here).

adidas AG 61 Acushnet Company 61 Fudan University 61 Optum Services (Ireland) Limited 61

Similar claim depth

Nearest assignees by average claims per patent (13.2 here).

Nicoventures Trading Limited 13.2 avg HTC Corporation 13.2 avg Lifetime Products, Inc. 13.2 avg Integrated DNA Technologies, Inc. 13.2 avg

Kuraray's Innovation Score vs. every tracked assignee

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

62 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

Kuraray Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	39	5.8%
2016	51	7.6%
2017	61	9.1%
2018	67	10.0%
2019	74	11.1%
2020	71	10.6%
2021	60	9.0%
2022	56	8.4%
2023	63	9.4%
2024	68	10.2%
2025partial year	59	8.8%

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

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 233

C08L - Compositions OF Macromolecular Compounds 218

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 164

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 150

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 134

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 81

Y10T - Technical Subjects Covered BY Former US Classification 80

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 63

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 57

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 53

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 53

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 51

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 51

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 50

G02B - Optical Elements, Systems OR Apparatus 45

Top 15 of 160 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 Co., Ltd.'s patent record in context - here's where to go next.

Kuraray Co., Ltd.'s lead technology class is C08F (Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds), 34.8% of its portfolio - see every assignee active in that class. Explore C08F
Ranked #673 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kuraray Co., Ltd. against General Electric Technology GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 61.5/100 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.