Where does Dowa Eco-system Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Dowa Eco-system Co., Ltd. ranks #35,053 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 Dowa Eco-system Co., Ltd. hold?

Dowa Eco-system Co., Ltd. holds 7 US utility patents granted between 2016 and 2025, spanning 19 technology areas.

What is Dowa Eco-system Co., Ltd.'s Innovation Score?

Dowa Eco-system Co., Ltd. has an Innovation Score of 41.1 out of 100 (top 34% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Dowa Eco-system Co., Ltd. focus on?

Dowa Eco-system Co., Ltd.'s top technology area is Y02W (Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management) with 4 patents, ranking #252 of 1,160 assignees active in that subclass. Grants appear in 19 CPC subclasses total.

Is Dowa Eco-system Co., Ltd.'s patent grant rate increasing or decreasing?

Dowa Eco-system Co., Ltd.'s recent grant velocity is -50% 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 Dowa Eco-system Co., Ltd.'s patents?

Dowa Eco-system Co., Ltd.'s patents average 8.6 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 Dowa Eco-system 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

Dowa Eco-system Co., Ltd.

USPTO PatentsView assignee record - 7 granted patents across 19 technology areas, recorded in grant years 2016–2025. 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: Y02W (Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Dowa ranks #35,053 of 49,997 tracked US assignees by granted-patent volume, with 7 patents across 19 technology areas.

#35,053
of 49,997 US assignees by volume: Top 34%
by Innovation Score (41.1/100): 8.6
avg claims per patent: -50%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R35053 · Foreign Corporation #35,053 · 7 grants

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

GRANTS-MICRO 7 grants
MID-PACK #35,053/49,997
PHOTO-FINISH Dongguan Thailight…
CPC-FOCUS Y02W · 19 areas
INNOV-PAR 41.1/100
CLAIMS-PAR 8.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -50% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Dongguan Thailight Semiconductor Lighting 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 Dowa’s 41.1 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 7.2 pts (18%) Velocity 13.3 pts (32%) Breadth 15.4 pts (38%) Claim depth 5.1 pts (12%)

Qualcomm Incorporated · highest

85
Dowa Eco-system · this assignee

41
Korea GAS · near

41
Schneider Electric… · near

41
Swoop IP Holdings · near

41
Ajax Systems Cyprus… · near

41
3D Lighting… · lowest

7

What this shows Dowa's Innovation Score is 41.1/100 (top 34% 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 Dowa?

Each dot is one of Dowa’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). Dowa’s own 8.6 claims/patent is at or below the 12.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Dowa's grants concentrate

Dowa Eco-system Co., Ltd. is a focused PatentsView assignee: 19 CPC subclasses with 57.1% of grants classified under Y02W (Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management). Peak complete grant year is 2016 (2 grants) versus a trough of 1 in 2017. By volume, Dowa sits between Dongguan Thailight Semiconductor Lighting Co., Ltd and Drilformance Technologies, LLC.

Dowa's three-year grant acceleration

Dowa Eco-system Co., Ltd. shows 2 grants in 2022–2024 against only 0 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.

Dongguan Thailigh…

7
Doosan Mobility I…

7
Dorst & KG

7
DOT Technology

7
DPX Ventures

7
DR Herfeld & KG

7
Drawbridge Health

7
Drilformance

7
Dowa Eco-system ◀

7

What this shows Dowa holds 7 patents at rank #34,977, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Dowa

By rank, the assignees closest to #34,977 in granted patent volume.

Leaders in Y02W (Climate Change Mitigation Technologies Related TO Wastewa…)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Dowa, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02W (Climate Change Mitigation Technologies Related TO Wastewa…), Dowa ranks #252 of 1,160 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (41 here).

Korea GAS Corporation 41 Schneider Electric Buildings, LLC 41 Swoop IP Holdings LLC 41 Ajax Systems Cyprus Holdings Ltd 41

Dowa's Innovation Score vs. every tracked assignee

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

41 Top 34% higher than 66% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Dowa Eco-system Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	2	28.6%
2017	1	14.3%
2018	1	14.3%
2022	1	14.3%
2024	1	14.3%
2025partial year	1	14.3%

Which technologies does Dowa Eco-system Co., Ltd. patent most?

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 4

B03C - Magnetic OR Electrostatic Separation OF Solid Materials From Solid Materials OR FLUIDS; Separation BY High-voltage Electric Fields 4

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 4

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

B09C - Reclamation OF Contaminated Soil 3

B02C - Crushing, Pulverising, OR Disintegrating IN GENERAL; Milling Grain 2

C09K - Materials FOR Miscellaneous Applications, NOT Provided FOR Elsewhere 2

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 2

C02F - Treatment OF Water, Waste Water, Sewage, OR Sludge 2

C22B - Production AND Refining OF Metals ; Pretreatment OF RAW Materials 2

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

B07B - Separating Solids From Solids BY Sieving, Screening, Sifting OR BY Using GAS CURRENTS; Separating BY Other DRY Methods Applicable TO Bulk Material, e.g. Loose Articles FIT TO BE Handled Like Bulk Material 2

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 1

A62D - Chemical Means FOR Extinguishing Fires OR FOR Combating OR Protecting Against Harmful Chemical AGENTS; Chemical Materials FOR USE IN Breathing Apparatus 1

B01D - Separation 1

Top 15 of 19 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

Dowa Eco-system Co., Ltd.'s patent record in context - here's where to go next.

Dowa Eco-system Co., Ltd.'s lead technology class is Y02W (Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management), 57.1% of its portfolio - see every assignee active in that class. Explore Y02W
Ranked #35,053 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Dowa Eco-system Co., Ltd. against Dongguan Thailight Semiconductor Lighting Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.1/100 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.