Where does Tokai Chemical Industries, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tokai Chemical Industries, Ltd. ranks #13,740 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 Tokai Chemical Industries, Ltd. hold?

Tokai Chemical Industries, Ltd. holds 22 US utility patents granted between 2015 and 2025, spanning 29 technology areas.

What is Tokai Chemical Industries, Ltd.'s Innovation Score?

Tokai Chemical Industries, Ltd. has an Innovation Score of 55.6 out of 100 (top 7% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Tokai Chemical Industries, Ltd.'s patent grant rate increasing or decreasing?

Tokai Chemical Industries, Ltd.'s recent grant velocity is +0% 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 Tokai Chemical Industries, Ltd.'s patents?

Tokai Chemical Industries, Ltd.'s patents average 9.6 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.

How is the Tokai Chemical Industries, 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

Tokai Chemical Industries, Ltd.

Q: What technology areas does Tokai Chemical Industries, Ltd. focus on?

Tokai Chemical Industries, Ltd.'s top technology area is B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR) with 13 patents, ranking #91 of 645 assignees active in that subclass. Grants appear in 29 CPC subclasses total.

USPTO PatentsView assignee record - 22 granted patents across 29 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: B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tokai ranks #13,740 of 49,997 tracked US assignees by granted-patent volume, with 22 patents across 29 technology areas.

#13,740
of 49,997 US assignees by volume: Top 7%
by Innovation Score (55.6/100): 9.6
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13740 · Foreign Corporation #13,740 · 22 grants

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

GRANTS-SMALL 22 grants
MID-PACK #13,740/49,997
PHOTO-FINISH Throughtek
CPC-FOCUS B60N · 29 areas
INNOV-PAR 55.6/100
CLAIMS-PAR 9.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Throughtek Co., 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 Tokai’s 55.6 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 10.8 pts (19%) Velocity 20.0 pts (36%) Breadth 19.0 pts (34%) Claim depth 5.7 pts (10%)

Qualcomm Incorporated · highest

85
Intelligent Energy · near

56
Proofpoint · near

56
Tokai Chemical… · this assignee

56
Tsubakimoto Chain · near

56
Zscaler · near

56
3D Lighting… · lowest

7

What this shows Tokai's Innovation Score is 55.6/100 (top 7% 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 Tokai?

Each dot is one of Tokai’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). Tokai’s own 9.6 claims/patent is at or below the 11.9 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tokai's grants concentrate

Tokai Chemical Industries, Ltd. is a focused PatentsView assignee: 29 CPC subclasses with 59.1% of grants classified under B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR). Peak complete grant year is 2024 (4 grants) versus a trough of 1 in 2015. By volume, Tokai sits between Throughtek Co., Ltd. and Toughbuilt Industries, Inc..

Tokai's three-year grant acceleration

Tokai Chemical Industries, Ltd. shows 9 grants in 2022–2024 against only 2 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.

Throughtek

22
TI Group Automoti…

22
TNA Australia Pty

22
Tocalo

22
Tomra Systems ASA

22
Toshiba Visual So…

22
Tosoh Finechem

22
Toughbuilt Indust…

22
Tokai Chemical In… ◀

22

What this shows Tokai holds 22 patents at rank #13,728, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tokai

By rank, the assignees closest to #13,728 in granted patent volume.

Leaders in B60N (Seats Specially Adapted FOR Vehicles)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tokai, neither rank-band nor same-CPC leaders (those blocks stay above). In B60N (Seats Specially Adapted FOR Vehicles), Tokai ranks #91 of 645 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (56 here).

Proofpoint, Inc. 56 Intelligent Energy Limited 56 Tsubakimoto Chain Co. 56 Zscaler, Inc. 56

Tokai's Innovation Score vs. every tracked assignee

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

56 Top 7% higher than 93% 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

Tokai Chemical Industries, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	4.5%
2016	2	9.1%
2017	3	13.6%
2018	3	13.6%
2019	1	4.5%
2021	1	4.5%
2022	3	13.6%
2023	2	9.1%
2024	4	18.2%
2025partial year	2	9.1%

Which technologies does Tokai Chemical Industries, Ltd. patent most?

B60N - Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR 13

A47C - CHAIRS; SOFAS; Beds 10

B60R - Vehicles, Vehicle Fittings, OR Vehicle Parts, NOT Otherwise Provided FOR 7

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

F02F - Cylinders, Pistons OR Casings, FOR Combustion ENGINES; Arrangements OF Sealings IN Combustion Engines 2

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 2

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 2

B60Q - Arrangement OF Signalling OR Lighting Devices, THE Mounting OR Supporting Thereof OR Circuits Therefor, FOR Vehicles IN General 1

F21V - Functional Features OR Details OF Lighting Devices OR Systems THEREOF; Structural Combinations OF Lighting Devices With Other Articles, NOT Otherwise Provided FOR 1

G09F - DISPLAYING; ADVERTISING; SIGNS; Labels OR NAME-PLATES; Seals 1

F21Y - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO THE Form OR THE Kind OF THE Light Sources OR OF THE Colour OF THE Light Emitted 1

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 1

F21W - Indexing Scheme Associated With Subclasses F21k, F21l, F21s and F21v, Relating TO Uses OR Applications OF Lighting Devices OR Systems 1

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

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 1

Top 15 of 29 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

Tokai Chemical Industries, Ltd.'s patent record in context - here's where to go next.

Tokai Chemical Industries, Ltd.'s lead technology class is B60N (Seats Specially Adapted FOR VEHICLES; Vehicle Passenger Accommodation NOT Otherwise Provided FOR), 59.1% of its portfolio - see every assignee active in that class. Explore B60N
Ranked #13,740 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tokai Chemical Industries, Ltd. against Throughtek Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 55.6/100 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.