USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Panasonic Energy Co., Ltd.

USPTO PatentsView assignee record - 87 granted patents across 23 technology areas, active 2023–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

8.7

Avg claims per patent

5-year filing velocity

The verdict

Panasonic holds 87 US patents across 23 technology areas, rank #4,129 of 50,000 tracked assignees.

#4,129
of 50,000 US assignees by volume: Top 5%
by Innovation Score (57.7/100): 8.7
avg claims per patent

Portfolio overview

Panasonic Energy Co., Ltd. has been granted 87 US utility patents between 2023 and 2025, placing Panasonic Energy Co., Ltd. at rank #4,129 across all assignees tracked by PlainPatent. This portfolio spans 23 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.7 claims per patent with primary concentration in H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY). As a Foreign Corporation, Panasonic Energy Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, Panasonic sits between NTT Electronics Corporation (87 patents, rank #4,125) and Suzhou Lekin Semiconductor Co., Ltd. (87 patents, rank #4,133) - the closest US assignees by grant volume. The composite Innovation Score of 57.7/100 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 2023 through 2025, with 87 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. Panasonic Energy Co., Ltd.'s 8.7 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 23 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Panasonic Energy Co., Ltd. against peers pursuing similar technology classes.

NTT

87
Nuscale Power

87
Objectvideo Labs

87
Orbital ATK

87
Rani Therapeutics

87
Sumitomo Electric…

87
Sumitomo Electric…

87
Suzhou Lekin Semi…

87
Panasonic Energy ◀

87

What this shows Panasonic holds 87 patents at rank #4,129, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Panasonic

By rank, the assignees closest to #4,129 in granted patent volume.

Leaders in H01M (Processes OR Means)

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

Panasonic's Innovation Score vs. every tracked assignee

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

58 Top 5% higher than 95% 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

USPTO utility patent grants by year · 2023–2025

Grants by year

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

View data table

Panasonic Energy Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2023	10	11.5%
2024	45	51.7%
2025	32	36.8%

Which technologies does Panasonic Energy Co., Ltd. patent most?

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 85

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 85

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 27

H02J - CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 11

C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 9

C01P - INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS 6

B65H - HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES 5

G01R - MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 3

H02H - EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 3

C08F - MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 2

H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 2

Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION 2

G06F - ELECTRIC DIGITAL DATA PROCESSING 2

H01R - ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 2

B26F - PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING 1

Top 15 of 23 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Where it ranks

Overall rank by patents

#4,129

Across all tracked assignees

Innovation Score

57.7 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 Panasonic Energy Co., Ltd. hold?

Panasonic Energy Co., Ltd. holds 87 US granted patents filed between 2023 and 2025, spanning 23 technology areas.

What is Panasonic Energy Co., Ltd.'s Innovation Score?

Panasonic Energy Co., Ltd. has an Innovation Score of 57.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Panasonic Energy Co., Ltd. focus on?

Panasonic Energy Co., Ltd.'s top technology area is H01M (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY) with 85 patents. The company has filed patents in 23 CPC subclasses total.

Is Panasonic Energy Co., Ltd.'s patent filing rate increasing or decreasing?

Insufficient historical data is available to calculate a velocity trend for Panasonic Energy Co., Ltd..

What does claim depth mean for Panasonic Energy Co., Ltd.'s patents?

Panasonic Energy Co., Ltd.'s patents average 8.7 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Panasonic Energy 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.

How to use this portfolio

Panasonic's 87 grants land it in the top 5% 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 - Panasonic ranks #4,129 of 50,000. Top 50 holders
Most of this portfolio concentrates in H01M - see who else leads that technology area. H01M 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.