USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Asahi Kasei Battery Separator Corporation

USPTO PatentsView assignee record - 6 granted patents across 11 technology areas, active 2025–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

14.3

Avg claims per patent

5-year filing velocity

The verdict

Asahi holds 6 US patents across 11 technology areas, rank #38,944 of 50,000 tracked assignees.

#38,944
of 50,000 US assignees by volume: Top 78%
by Innovation Score (27.1/100): 14.3
avg claims per patent

Portfolio overview

Asahi Kasei Battery Separator Corporation has been granted 6 US utility patents between 2025 and 2025, placing Asahi Kasei Battery Separator Corporation at rank #38,944 across all assignees tracked by PlainPatent. This portfolio spans 11 distinct Cooperative Patent Classification (CPC) subclasses, averaging 14.3 claims per patent with primary concentration in Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION). As a Foreign Corporation, Asahi Kasei Battery Separator Corporation is one of the more focused assignees in the PatentsView dataset. By volume, Asahi sits between Articulate Labs, Inc. (6 patents, rank #38,940) and Ascent Products, Llc (6 patents, rank #38,948) - the closest US assignees by grant volume. The composite Innovation Score of 27.1/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Historical data spans 2025 through 2025, with 6 total grants over that period. Velocity comparisons require five years of historical filings to calibrate. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Asahi Kasei Battery Separator Corporation's 14.3 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 11 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Asahi Kasei Battery Separator Corporation against peers pursuing similar technology classes.

Articulate Labs

6
Artisanal Gifts

6
Artiva

6
Arzel Zoning Tech…

6
Asahi Kasei Biopr…

6
Asano Laboratories

6
Ascension Orthope…

6
Ascent Products

6
Asahi Kasei Batte… ◀

6

What this shows Asahi holds 6 patents at rank #38,944, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Asahi

By rank, the assignees closest to #38,944 in granted patent volume.

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

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

Asahi's Innovation Score vs. every tracked assignee

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

27 Top 78% higher than 22% of 50,000 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

Grants by year

Teal-shaded recent years (2020–present) versus the 2025–2019 baseline. Full figures in the table below.

View data table

Asahi Kasei Battery Separator Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2025	6	100.0%

Which technologies does Asahi Kasei Battery Separator Corporation patent most?

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 6

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 6

H01G - CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE 4

C08J - WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H 4

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 2

C08L - COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 2

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 2

B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 1

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1

B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 1

B29D - PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 1

Top 11 of 11 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Where it ranks

Overall rank by patents

#38,944

Across all tracked assignees

Innovation Score

27.1 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Asahi Kasei Battery Separator Corporation hold?

Asahi Kasei Battery Separator Corporation holds 6 US granted patents filed between 2025 and 2025, spanning 11 technology areas.

What is Asahi Kasei Battery Separator Corporation's Innovation Score?

Asahi Kasei Battery Separator Corporation has an Innovation Score of 27.1 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Asahi Kasei Battery Separator Corporation focus on?

Asahi Kasei Battery Separator Corporation's top technology area is Y02E (REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION) with 6 patents. The company has filed patents in 11 CPC subclasses total.

Is Asahi Kasei Battery Separator Corporation's patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Asahi Kasei Battery Separator Corporation.

What does claim depth mean for Asahi Kasei Battery Separator Corporation's patents?

Asahi Kasei Battery Separator Corporation's patents average 14.3 claims each. This falls within the standard range, providing solid legal coverage.

How is the Asahi Kasei Battery Separator 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.

How to use this portfolio

Asahi's 6 grants land it in the top 78% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Asahi ranks #38,944 of 50,000. Top 50 holders
Most of this portfolio concentrates in Y02E - see who else leads that technology area. Y02E leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.