Where does Aesc Japan Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Aesc Japan Ltd. ranks #20,697 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 Aesc Japan Ltd. hold?

Aesc Japan Ltd. holds 13 US utility patents granted between 2023 and 2024, spanning 8 technology areas.

What is Aesc Japan Ltd.'s Innovation Score?

Aesc Japan Ltd. has an Innovation Score of 45.8 out of 100 (top 22% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Aesc Japan Ltd. focus on?

Aesc Japan Ltd.'s top technology area is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy) with 13 patents, ranking #441 of 2,332 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

Is Aesc Japan Ltd.'s patent grant rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Aesc Japan Ltd..

What does claim depth mean for Aesc Japan Ltd.'s patents?

Aesc Japan Ltd.'s patents average 11.2 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 Aesc Japan 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

Aesc Japan Ltd.

USPTO PatentsView assignee record - 13 granted patents across 8 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: H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Aesc ranks #20,697 of 49,997 tracked US assignees by granted-patent volume, with 13 patents across 8 technology areas.

#20,697
of 49,997 US assignees by volume: Top 22%
by Innovation Score (45.8/100): 11.2
avg claims per patent

USPTO PatentsView assignee plate

Corpus R20697 · Foreign Corporation #20,697 · 13 grants

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

GRANTS-MICRO 13 grants
MID-PACK #20,697/49,997
PHOTO-FINISH Advanced Access
CPC-NARROW H01M · 8 areas
INNOV-PAR 45.8/100
CLAIMS-PAR 11.2 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2024 · 2y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: Advanced Access Technologies LLC (±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 Aesc’s 45.8 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 9.1 pts (20%) Velocity 20.0 pts (44%) Breadth 10.0 pts (22%) Claim depth 6.7 pts (15%)

Qualcomm Incorporated · highest

85
Aesc Japan · this assignee

46
3D Lighting… · lowest

7

What this shows Aesc's Innovation Score is 45.8/100 (top 22% 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 Aesc?

Each dot is one of Aesc’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). Aesc’s own 11.2 claims/patent is at or below the 14.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Aesc's grants concentrate

Aesc Japan Ltd. is a focused PatentsView assignee: 8 CPC subclasses with 100% of grants classified under H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy). Peak complete grant year is 2024 (8 grants) versus a trough of 5 in 2023. By volume, Aesc sits between Advanced Access Technologies LLC and Airway Medix S.A..

Aesc's three-year grant acceleration

Aesc Japan Ltd. shows 13 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.

Advanced Access

13
Aecc Commercial A…

13
AEM Singapore Pte

13
Aerospace Informa…

13
Agenebio

13
Agerpoint

13
Aireon

13
Airway Medix

13
Aesc Japan ◀

13

What this shows Aesc holds 13 patents at rank #20,686, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Aesc

By rank, the assignees closest to #20,686 in granted patent volume.

Leaders in H01M (Processes OR Means)

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

Aesc's Innovation Score vs. every tracked assignee

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

46 Top 22% higher than 78% 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

Aesc Japan Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	5	38.5%
2024	8	61.5%

Which technologies does Aesc Japan Ltd. patent most?

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 13

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 13

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 6

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 2

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

B60L - Propulsion OF Electrically-propelled Vehicles ; Supplying Electric Power FOR Auxiliary Equipment OF Electrically-propelled Vehicles ; Electrodynamic Brake Systems FOR Vehicles IN General ; Magnetic Suspension OR Levitation FOR VEHICLES; Monitoring Operating Variables OF Electrically-propelled Vehicl 1

H02J - Circuit Arrangements OR Systems FOR Supplying OR Distributing Electric POWER; Systems FOR Storing Electric Energy 1

B60K - Arrangement OR Mounting OF Propulsion Units OR OF Transmissions IN VEHICLES; Arrangement OR Mounting OF Plural Diverse Prime-movers IN VEHICLES; Auxiliary Drives FOR VEHICLES; Instrumentation OR Dashboards FOR VEHICLES; Arrangements IN Connection With Cooling, AIR Intake, GAS Exhaust OR Fuel Supply 1

Top 8 of 8 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

Aesc Japan Ltd.'s patent record in context - here's where to go next.

Aesc Japan Ltd.'s lead technology class is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy), 100% of its portfolio - see every assignee active in that class. Explore H01M
Ranked #20,697 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Aesc Japan Ltd. against Advanced Access Technologies LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 45.8/100 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.