Where does ECO Environmental Energy Research Institute Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), ECO Environmental Energy Research Institute Limited ranks #39,949 of 49,997 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

What is ECO Environmental Energy Research Institute Limited's Innovation Score?

ECO Environmental Energy Research Institute Limited has an Innovation Score of 47.8 out of 100 (top 18% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is ECO Environmental Energy Research Institute Limited's patent grant rate increasing or decreasing?

ECO Environmental Energy Research Institute Limited'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 ECO Environmental Energy Research Institute Limited's patents?

ECO Environmental Energy Research Institute Limited's patents average 29.0 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

ECO Environmental Energy Research Institute Limited

Q: How many patents does ECO Environmental Energy Research Institute Limited hold?

ECO Environmental Energy Research Institute Limited holds 6 US utility patents granted between 2017 and 2024, spanning 13 technology areas.

Q: What technology areas does ECO Environmental Energy Research Institute Limited focus on?

ECO Environmental Energy Research Institute Limited's top technology area is Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods) with 4 patents, ranking #1,616 of 4,985 assignees active in that subclass. Grants appear in 13 CPC subclasses total.

Q: How is the ECO Environmental Energy Research Institute Limited 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 PatentsView assignee record - 6 granted patents across 13 technology areas, recorded in grant years 2017–2024. 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: Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, ECO ranks #39,949 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 13 technology areas.

#39,949
of 49,997 US assignees by volume: Top 18%
by Innovation Score (47.8/100): 29.0
avg claims per patent: +0%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R39949 · Foreign Corporation #39,949 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-DENSE · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-MICRO 6 grants
LOWER-Q #39,949/49,997
PHOTO-FINISH Ebara Refrigeration…
CPC-FOCUS Y02P · 13 areas
INNOV-PAR 47.8/100
CLAIMS-DENSE 29.0 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT +0% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Ebara Refrigeration Equipment & Systems 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 ECO’s 47.8 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 6.7 pts (14%) Velocity 13.3 pts (28%) Breadth 12.7 pts (27%) Claim depth 15.0 pts (31%)

Qualcomm Incorporated · highest

85
ECO Environmental… · this assignee

48
3D Lighting… · lowest

7

What this shows ECO's Innovation Score is 47.8/100 (top 18% 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 ECO?

Each dot is one of ECO’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). ECO’s own 29.0 claims/patent is ABOVE the 16.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where ECO's grants concentrate

ECO Environmental Energy Research Institute Limited is a focused PatentsView assignee: 13 CPC subclasses with 66.7% of grants classified under Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods). Peak complete grant year is 2018 (2 grants) versus a trough of 1 in 2017. By volume, ECO sits between Ebara Refrigeration Equipment & Systems Co., Ltd. and ED Holding B.V..

ECO's three-year grant acceleration

ECO Environmental Energy Research Institute Limited shows 2 grants in 2022–2024 against only 1 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.

Ebara Refrigerati…

6
Echo Laboratories

6
Echocare

6
ECI Technology

6
Ecole Normale Sup…

6
Ecom Medical

6
Ecovance

6
ED Holding B V

6
ECO Environmental… ◀

6

What this shows ECO holds 6 patents at rank #39,939, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near ECO

By rank, the assignees closest to #39,939 in granted patent volume.

Leaders in Y02P (Climate Change Mitigation Technologies IN THE Production…)

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

ECO's Innovation Score vs. every tracked assignee

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

48 Top 18% higher than 82% 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 · 2017–2024

Grants by year

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

View data table

ECO Environmental Energy Research Institute Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	16.7%
2018	2	33.3%
2021	1	16.7%
2023	1	16.7%
2024	1	16.7%

Which technologies does ECO Environmental Energy Research Institute Limited patent most?

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 4

C10G - Cracking Hydrocarbon OILS; Production OF Liquid Hydrocarbon Mixtures, e.g. BY Destructive Hydrogenation, Oligomerisation, Polymerisation ; Recovery OF Hydrocarbon Oils From Oil-shale, Oil-sand, OR GASES; Refining Mixtures Mainly Consisting OF HYDROCARBONS; Reforming OF NAPHTHA; Mineral Waxes 3

B01D - Separation 3

C07D - Heterocyclic Compounds 2

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

C10L - Fuels NOT Otherwise Provided FOR; Natural GAS; Synthetic Natural GAS Obtained BY Processes NOT Covered BY Subclasses C10g OR C10K; Liquified Petroleum GAS; USE OF Additives TO Fuels OR FIRES; Fire-lighters 1

C10C - Working-up Pitch, Asphalt, Bitumen, TAR; Pyroligneous Acid 1

C11C - Fatty Acids From Fats, Oils OR WAXES; CANDLES; Fats, Oils OR Fatty Acids BY Chemical Modification OF Fats, Oils, OR Fatty Acids Obtained Therefrom 1

C11B - Producing, e.g. BY Pressing RAW Materials OR BY Extraction From Waste Materials, Refining OR Preserving Fats, Fatty Substances, e.g. Lanolin, Fatty Oils OR WAXES; Essential OILS; Perfumes 1

C10J - Production OF Producer GAS, Water-gas, Synthesis GAS From Solid Carbonaceous Material, OR Mixtures Containing These Gases ; Carburetting AIR OR Other Gases 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

C10K - Purifying OR Modifying THE Chemical Composition OF Combustible Gases Containing Carbon Monoxide 1

C10B - Destructive Distillation OF Carbonaceous Materials FOR Production OF GAS, Coke, TAR, OR Similar Materials 1

Top 13 of 13 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

ECO Environmental Energy Research Institute Limited's patent record in context - here's where to go next.

ECO Environmental Energy Research Institute Limited's lead technology class is Y02P (Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods), 66.7% of its portfolio - see every assignee active in that class. Explore Y02P
Ranked #39,949 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare ECO Environmental Energy Research Institute Limited against Ebara Refrigeration Equipment & Systems Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 47.8/100 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.