Where does Tanaka Chemical Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Tanaka Chemical Corporation ranks #12,251 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 Tanaka Chemical Corporation hold?

Tanaka Chemical Corporation holds 25 US utility patents granted between 2018 and 2025, spanning 9 technology areas.

What is Tanaka Chemical Corporation's Innovation Score?

Tanaka Chemical Corporation has an Innovation Score of 35.8 out of 100 (top 48% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Tanaka Chemical Corporation's patent grant rate increasing or decreasing?

Tanaka Chemical Corporation's recent grant velocity is +1000% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Tanaka Chemical Corporation's patents?

Tanaka Chemical Corporation's patents average 11.1 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 Tanaka Chemical 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

Tanaka Chemical Corporation

Q: What technology areas does Tanaka Chemical Corporation focus on?

Tanaka Chemical Corporation's top technology area is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution) with 25 patents, ranking #603 of 5,963 assignees active in that subclass. Grants appear in 9 CPC subclasses total.

USPTO PatentsView assignee record - 25 granted patents across 9 technology areas, recorded in grant years 2018–2025. 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: Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Tanaka ranks #12,251 of 49,997 tracked US assignees by granted-patent volume, with 25 patents across 9 technology areas.

#12,251
of 49,997 US assignees by volume: Top 48%
by Innovation Score (35.8/100): 11.1
avg claims per patent: +1000%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R12251 · Foreign Corporation #12,251 · 25 grants

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

GRANTS-SMALL 25 grants
UPPER-Q #12,251/49,997
PHOTO-FINISH Sourcing Solutions…
CPC-NARROW Y02E · 9 areas
INNOV-THIN 35.8/100
CLAIMS-PAR 11.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +1000% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Sourcing Solutions International 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 Tanaka’s 35.8 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 11.3 pts (31%) Velocity 7.3 pts (20%) Breadth 10.6 pts (30%) Claim depth 6.7 pts (19%)

Qualcomm Incorporated · highest

85
Caffitaly System S P A · near

36
Xuzhou Heavy Machinery · near

36
Joyson Safety… · near

36
Tanaka Chemical · this assignee

36
THE Hi-tech Robotic… · near

36
3D Lighting… · lowest

7

What this shows Tanaka's Innovation Score is 35.8/100 (top 48% 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 Tanaka?

Each dot is one of Tanaka’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). Tanaka’s own 11.1 claims/patent is at or below the 12.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Tanaka's grants concentrate

Tanaka Chemical Corporation is a focused PatentsView assignee: 9 CPC subclasses with 100% of grants classified under Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution). Peak complete grant year is 2021 (6 grants) versus a trough of 1 in 2018. By volume, Tanaka sits between Sourcing Solutions International Limited and TEL FSI, Inc..

Tanaka's three-year grant acceleration

Tanaka Chemical Corporation shows 12 grants in 2022–2024 against only 11 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.

Sourcing Solution…

25
Steinel

25
Syntropy Systems

25
T Stamp

25
Tech Friends

25
Techway Industrial

25
Teijin Frontier

25
TEL FSI

25
Tanaka Chemical ◀

25

What this shows Tanaka holds 25 patents at rank #12,247, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Tanaka

By rank, the assignees closest to #12,247 in granted patent volume.

Leaders in Y02E (Reduction OF Greenhouse GAS [GHG] Emissions)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Tanaka, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02E (Reduction OF Greenhouse GAS [GHG] Emissions), Tanaka ranks #603 of 5,963 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (36 here).

THE Hi-tech Robotic Systemz Ltd 36 Joyson Safety Systems Germany GmbH 36 Xuzhou Heavy Machinery Co., Ltd. 36 Caffitaly System S.P.A. 36

Tanaka's Innovation Score vs. every tracked assignee

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

36 Top 48% higher than 52% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Tanaka Chemical Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	4.0%
2019	1	4.0%
2020	4	16.0%
2021	6	24.0%
2022	6	24.0%
2023	2	8.0%
2024	4	16.0%
2025partial year	1	4.0%

Which technologies does Tanaka Chemical Corporation patent most?

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 25

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 25

C01G - Compounds Containing Metals NOT Covered BY Subclasses C01d OR C01f 22

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 21

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 2

Y02T - Climate Change Mitigation Technologies Related TO Transportation 2

C01F - Compounds OF THE Metals Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium, OR OF THE Rare-earth Metals 1

C01D - Compounds OF Alkali Metals, i.e. Lithium, Sodium, Potassium, Rubidium, Caesium, OR Francium 1

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 1

Top 9 of 9 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

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

Tanaka Chemical Corporation's lead technology class is Y02E (Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution), 100% of its portfolio - see every assignee active in that class. Explore Y02E
Ranked #12,251 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Tanaka Chemical Corporation against Sourcing Solutions International Limited, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 35.8/100 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.