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

According to USPTO PatentsView (2015–2025 granted utility patents), Tokai Kogyo Co., Ltd. ranks #8,698 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 Kogyo Co., Ltd. hold?

Tokai Kogyo Co., Ltd. holds 37 US utility patents granted between 2015 and 2025, spanning 30 technology areas.

What is Tokai Kogyo Co., Ltd.'s Innovation Score?

Tokai Kogyo Co., Ltd. has an Innovation Score of 39.1 out of 100 (top 39% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Tokai Kogyo Co., Ltd.'s recent grant velocity is -33% 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 Tokai Kogyo Co., Ltd.'s patents?

Tokai Kogyo Co., Ltd.'s patents average 8.2 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 Tokai Kogyo 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

Tokai Kogyo Co., Ltd.

Q: What technology areas does Tokai Kogyo Co., Ltd. focus on?

Tokai Kogyo Co., Ltd.'s top technology area is B60J (Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles) with 22 patents, ranking #30 of 418 assignees active in that subclass. Grants appear in 30 CPC subclasses total.

USPTO PatentsView assignee record - 37 granted patents across 30 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: B60J (Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tokai ranks #8,698 of 49,997 tracked US assignees by granted-patent volume, with 37 patents across 30 technology areas.

#8,698
of 49,997 US assignees by volume: Top 39%
by Innovation Score (39.1/100): 8.2
avg claims per patent: -33%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R8698 · Foreign Corporation #8,698 · 37 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DOWN · BOOK-FULL

GRANTS-SMALL 37 grants
UPPER-Q #8,698/49,997
PHOTO-FINISH Tata Steel
CPC-FOCUS B60J · 30 areas
INNOV-THIN 39.1/100
CLAIMS-PAR 8.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -33% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Tata Steel Limited (±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 39.1 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 12.6 pts (32%) Velocity 2.2 pts (6%) Breadth 19.4 pts (50%) Claim depth 4.9 pts (13%)

Qualcomm Incorporated · highest

85
Canrig Drilling… · near

39
Center of Human-Cent… · near

39
GKN Driveline North… · near

39
Numecent Holdings · near

39
Tokai Kogyo · this assignee

39
3D Lighting… · lowest

7

What this shows Tokai's Innovation Score is 39.1/100 (top 39% 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 8.2 claims/patent is at or below the 13.8 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 Kogyo Co., Ltd. is a focused PatentsView assignee: 30 CPC subclasses with 59.5% of grants classified under B60J (Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles). Peak complete grant year is 2020 (9 grants) versus a trough of 1 in 2021. By volume, Tokai sits between Tempur World, LLC and Tata Steel Limited.

Tokai's three-year grant acceleration

Tokai Kogyo Co., Ltd. shows 4 grants in 2022–2024 against only 12 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.

Tempur World

37
TGW Logistics

37
THE 13th Research…

37
THE Walter AND El…

37
Tokyo Rope MFG

37
Tornier SAS

37
Tris Pharma

37
Tata Steel

37
Tokai Kogyo ◀

37

What this shows Tokai holds 37 patents at rank #8,692, 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 #8,692 in granted patent volume.

Leaders in B60J (Windows)

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 B60J (Windows), Tokai ranks #30 of 418 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (39 here).

GKN Driveline North America, Inc. 39 Numecent Holdings, Inc. 39 Center of Human-Centered Interaction for Coexistence 39 Canrig Drilling Technology Ltd. 39

Tokai's Innovation Score vs. every tracked assignee

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

39 Top 39% higher than 61% 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 Kogyo Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	5	13.5%
2016	6	16.2%
2017	3	8.1%
2018	5	13.5%
2019	2	5.4%
2020	9	24.3%
2021	1	2.7%
2022	3	8.1%
2024	1	2.7%
2025partial year	2	5.4%

Which technologies does Tokai Kogyo Co., Ltd. patent most?

B60J - Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles 22

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 13

B29L - Indexing Scheme Associated With Subclass B29c, Relating TO Particular Articles 8

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

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 6

Y10T - Technical Subjects Covered BY Former US Classification 5

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; Selection OF Materials FOR Their Magnetic Properties 4

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 3

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 2

B29D - Producing Particular Articles From Plastics OR From Substances IN A Plastic State 2

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 2

H01R - Electrically-conductive CONNECTIONS; Structural Associations OF A Plurality OF Mutually-insulated Electrical Connecting ELEMENTS; Coupling DEVICES; Current Collectors 1

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

H05G - X-ray Technique 1

H02M - Apparatus FOR Conversion Between AC AND AC, Between AC AND DC, OR Between DC AND DC, AND FOR USE With Mains OR Similar Power Supply SYSTEMS; Conversion OF DC OR AC Input Power Into Surge Output POWER; Control OR Regulation Thereof 1

Top 15 of 30 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 Kogyo Co., Ltd.'s patent record in context - here's where to go next.

Tokai Kogyo Co., Ltd.'s lead technology class is B60J (Windows, Windscreens, Non-fixed Roofs, Doors, OR Similar Devices FOR VEHICLES; Removable External Protective Coverings Specially Adapted FOR Vehicles), 59.5% of its portfolio - see every assignee active in that class. Explore B60J
Ranked #8,698 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tokai Kogyo Co., Ltd. against Tempur World, LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.1/100 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.