Where does Kaneka Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Kaneka Corporation ranks #545 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 Kaneka Corporation hold?

Kaneka Corporation holds 824 US utility patents granted between 2015 and 2025, spanning 181 technology areas.

What is Kaneka Corporation's Innovation Score?

Kaneka Corporation has an Innovation Score of 59.6 out of 100 (top 4% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kaneka Corporation focus on?

Kaneka Corporation's top technology area is C08L (Compositions OF Macromolecular Compounds) with 186 patents, ranking #23 of 2,352 assignees active in that subclass. Grants appear in 181 CPC subclasses total.

Is Kaneka Corporation's patent grant rate increasing or decreasing?

Kaneka Corporation's recent grant velocity is -22% 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 Kaneka Corporation's patents?

Kaneka Corporation's patents average 12.9 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 Kaneka 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

Kaneka Corporation

USPTO PatentsView assignee record - 824 granted patents across 181 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, Kaneka ranks #545 of 49,997 tracked US assignees by granted-patent volume, with 824 patents across 181 technology areas.

#545
of 49,997 US assignees by volume: Top 4%
by Innovation Score (59.6/100): 12.9
avg claims per patent: -22%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R545 · Foreign Corporation #545 · 824 grants

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

GRANTS-MID 824 grants
TOP-DECILE #545/49,997
PHOTO-FINISH E Ink Holdings
CPC-WIDE C08L · 181 areas
INNOV-PAR 59.6/100
CLAIMS-RICH 12.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -22% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: E Ink Holdings 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 Kaneka’s 59.6 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 23.2 pts (39%) Velocity 3.6 pts (6%) Breadth 25.0 pts (42%) Claim depth 7.8 pts (13%)

Qualcomm Incorporated · highest

85
Daimler Truck · near

60
Kaneka · this assignee

60
SL · near

60
The Goodyear Tire &… · near

60
Valmet Oy · near

60
3D Lighting… · lowest

7

What this shows Kaneka's Innovation Score is 59.6/100 (top 4% 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 Kaneka?

Each dot is one of Kaneka’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). Kaneka’s own 12.9 claims/patent is ABOVE the 12.6 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

How Kaneka's grant cadence moved

Between 2020–2024, Kaneka Corporation received 332 grants versus 428 in 2015–2019 (-22% equal-window velocity, below median growth). Across complete PatentsView years, output peaked in 2020 at 112 grants and bottomed in 2023 at 35. Lead class C08L accounts for 22.6% of the portfolio across 181 subclasses. Volume neighbours: University of Massachusetts (#541) and Mitutoyo Corporation (#549).

Kaneka's three-year grant acceleration

From 2019–2021 to 2022–2024, Kaneka Corporation moved from 285 to 154 grants (0.54x 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 #2,596. See the growth leaderboard.

University of Mas…

828
Shanghai United I…

825
Silicon Laborator…

825
E Ink Holdings

824
Kaneka ◀

824
Industry-academic…

823
NGK Spark Plug

823
National Institut…

822
Mitutoyo

820

What this shows Kaneka holds 824 patents at rank #545, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kaneka

By rank, the assignees closest to #545 in granted patent volume.

Leaders in C08L (Compositions OF Macromolecular Compounds)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Kaneka, neither rank-band nor same-CPC leaders (those blocks stay above). In C08L (Compositions OF Macromolecular Compounds), Kaneka ranks #23 of 2,352 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (60 here).

The Goodyear Tire & Rubber Company 60 SL Corporation 60 Valmet Technologies Oy 60 Daimler Truck AG 60

Similar claim depth

Nearest assignees by average claims per patent (12.9 here).

NEC Corporation 12.9 avg Advanced Connectek Inc. 12.9 avg Kohler Mira Limited 12.9 avg TD Ameritrade IP Company, Inc. 12.9 avg

Kaneka's Innovation Score vs. every tracked assignee

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

60 Top 4% higher than 96% 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

Kaneka Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	79	9.6%
2016	91	11.0%
2017	74	9.0%
2018	77	9.3%
2019	107	13.0%
2020	112	13.6%
2021	66	8.0%
2022	64	7.8%
2023	35	4.2%
2024	55	6.7%
2025partial year	64	7.8%

Which technologies does Kaneka Corporation patent most?

C08L - Compositions OF Macromolecular Compounds 186

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 131

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 128

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 123

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 100

H10F - Inorganic Semiconductor Devices Sensitive TO Infrared Radiation, Light, Electromagnetic Radiation OF Shorter Wavelength OR Corpuscular Radiation 90

C08F - Macromolecular Compounds Obtained BY Reactions Only Involving Carbon-to-carbon Unsaturated Bonds 87

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 81

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 79

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 76

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 59

C12P - Fermentation OR Enzyme-using Processes TO Synthesise A Desired Chemical Compound OR Composition OR TO Separate Optical Isomers From A Racemic Mixture 57

Y10T - Technical Subjects Covered BY Former US Classification 55

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 54

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 53

Top 15 of 181 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

Kaneka Corporation's patent record in context - here's where to go next.

Kaneka Corporation's lead technology class is C08L (Compositions OF Macromolecular Compounds), 22.6% of its portfolio - see every assignee active in that class. Explore C08L
Ranked #545 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kaneka Corporation against University of Massachusetts, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 59.6/100 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.