Where does Ecovance Co. Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Ecovance Co. Ltd. ranks #39,954 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 Ecovance Co. Ltd. hold?

Ecovance Co. Ltd. holds 6 US utility patents granted between 2023 and 2024, spanning 5 technology areas.

What is Ecovance Co. Ltd.'s Innovation Score?

Ecovance Co. Ltd. has an Innovation Score of 43.1 out of 100 (top 29% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Ecovance Co. Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Ecovance Co. Ltd..

What does claim depth mean for Ecovance Co. Ltd.'s patents?

Ecovance Co. Ltd.'s patents average 14.2 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 Ecovance 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

Ecovance Co. Ltd.

Q: What technology areas does Ecovance Co. Ltd. focus on?

Ecovance Co. Ltd.'s top technology area is C08G (Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds) with 6 patents, ranking #489 of 1,741 assignees active in that subclass. Grants appear in 5 CPC subclasses total.

USPTO PatentsView assignee record - 6 granted patents across 5 technology areas, recorded in grant years 2023–2024. 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: C08G (Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Ecovance ranks #39,954 of 49,997 tracked US assignees by granted-patent volume, with 6 patents across 5 technology areas.

#39,954
of 49,997 US assignees by volume: Top 29%
by Innovation Score (43.1/100): 14.2
avg claims per patent

USPTO PatentsView assignee plate

Corpus R39954 · Foreign Corporation #39,954 · 6 grants

GRANTS-MICRO · LOWER-Q · PHOTO-FINISH · CPC-NARROW · INNOV-PAR · CLAIMS-RICH · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-MICRO 6 grants
LOWER-Q #39,954/49,997
PHOTO-FINISH ECI Technology
CPC-NARROW C08G · 5 areas
INNOV-PAR 43.1/100
CLAIMS-RICH 14.2 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2024 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: ECI Technology, Inc. (±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 Ecovance’s 43.1 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 6.7 pts (16%) Velocity 20.0 pts (46%) Breadth 7.9 pts (18%) Claim depth 8.5 pts (20%)

Qualcomm Incorporated · highest

85
Ecovance · this assignee

43
3D Lighting… · lowest

7

What this shows Ecovance's Innovation Score is 43.1/100 (top 29% 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 Ecovance?

Each dot is one of Ecovance’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). Ecovance’s own 14.2 claims/patent is at or below the 17.0 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Ecovance's grants concentrate

Ecovance Co. Ltd. is a focused PatentsView assignee: 5 CPC subclasses with 100% of grants classified under C08G (Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds). Peak complete grant year is 2024 (5 grants) versus a trough of 1 in 2023. By volume, Ecovance sits between ECI Technology, Inc. and Education4sight GmbH.

Ecovance's three-year grant acceleration

Ecovance Co. Ltd. shows 6 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.

ECI Technology

6
ECO Environmental…

6
Ecole Normale Sup…

6
Ecom Medical

6
ED Holding B V

6
Edan Diagnostics

6
Edgeverve Systems

6
Education4sight

6
Ecovance ◀

6

What this shows Ecovance holds 6 patents at rank #39,942, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Ecovance

By rank, the assignees closest to #39,942 in granted patent volume.

Leaders in C08G (Macromolecular Compounds Obtained Otherwise Than BY React…)

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

Ecovance's Innovation Score vs. every tracked assignee

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

43 Top 29% higher than 71% 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 · 2023–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2023–2019 baseline. Full figures in the table below.

View data table

Ecovance Co. Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	1	16.7%
2024	5	83.3%

Which technologies does Ecovance Co. Ltd. patent most?

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 6

C08L - Compositions OF Macromolecular Compounds 6

C08J - WORKING-UP; General Processes OF COMPOUNDING; After-treatment NOT Covered BY Subclasses C08b, C08c, C08f, C08g or C08h 4

C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients 2

Y02W - Climate Change Mitigation Technologies Related TO Wastewater Treatment OR Waste Management 2

Top 5 of 5 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

Ecovance Co. Ltd.'s patent record in context - here's where to go next.

Ecovance Co. Ltd.'s lead technology class is C08G (Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds), 100% of its portfolio - see every assignee active in that class. Explore C08G
Ranked #39,954 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Ecovance Co. Ltd. against ECI Technology, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 43.1/100 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.