USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Tokan Kogyo Co., Ltd.

USPTO PatentsView assignee record - 9 granted patents across 11 technology areas, active 2017–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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 F).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

6.2

Avg claims per patent

-50%

5-year filing velocity

The verdict

Tokan holds 9 US patents across 11 technology areas, rank #30,342 of 50,000 tracked assignees.

#30,342
of 50,000 US assignees by volume: Top 67%
by Innovation Score (30.1/100): 6.2
avg claims per patent: -50%
filing velocity, last 5 yrs

Portfolio overview

Tokan Kogyo Co., Ltd. has been granted 9 US utility patents between 2017 and 2023, placing Tokan Kogyo Co., Ltd. at rank #30,342 across all assignees tracked by PlainPatent. This portfolio spans 11 distinct Cooperative Patent Classification (CPC) subclasses, averaging 6.2 claims per patent with primary concentration in 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 F). As a Foreign Corporation, Tokan Kogyo Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Tokan sits between Tinavi Medical Technologies Co., Ltd (9 patents, rank #30,338) and Tournadre Sa Standard GUM (9 patents, rank #30,346) - the closest US assignees by grant volume. The composite Innovation Score of 30.1/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 3 grants, compared with 6 in the 2015–2019 window, a -50% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Tokan Kogyo Co., Ltd.'s 6.2 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while concentration in 11 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Tokan Kogyo Co., Ltd. against peers pursuing similar technology classes.

Tinavi Medical

9
TLI

9
Tmaxtibero

9
Toddy

9
Tongfu Manufactur…

9
Toolbro Innovators

9
Torxx Kinetic Pul…

9
Tournadre Standar…

9
Tokan Kogyo ◀

9

What this shows Tokan holds 9 patents at rank #30,342, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tokan

By rank, the assignees closest to #30,342 in granted patent volume.

Leaders in B65D (Containers FOR Storage OR Transport OF Articles OR Materials)

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

Tokan's Innovation Score vs. every tracked assignee

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

30 Top 67% higher than 33% of 50,000 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 · 2017–2023

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Tokan Kogyo Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	11.1%
2018	4	44.4%
2019	1	11.1%
2021	1	11.1%
2023	2	22.2%

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

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 8

B31B - MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER 5

B31F - MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER 2

B31D - MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C 2

B65B - MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 1

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 1

B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 1

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 1

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 1

B29D - PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 1

F16B - DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 1

Top 11 of 11 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#30,342

Across all tracked assignees

Innovation Score

30.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Tokan Kogyo Co., Ltd. hold?

Tokan Kogyo Co., Ltd. holds 9 US granted patents filed between 2017 and 2023, spanning 11 technology areas.

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

Tokan Kogyo Co., Ltd. has an Innovation Score of 30.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Tokan Kogyo Co., Ltd. focus on?

Tokan Kogyo Co., Ltd.'s top technology area is 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) with 8 patents. The company has filed patents in 11 CPC subclasses total.

Is Tokan Kogyo Co., Ltd.'s patent filing rate increasing or decreasing?

Tokan Kogyo Co., Ltd.'s recent filing velocity is -50% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

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

Tokan Kogyo Co., Ltd.'s patents average 6.2 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Tokan 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.

How to use this portfolio

Tokan's 9 grants land it in the top 67% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Tokan ranks #30,342 of 50,000. Top 50 holders
Most of this portfolio concentrates in B65D - see who else leads that technology area. B65D leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.