Where does Panasonic Energy Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Panasonic Energy Co., Ltd. ranks #4,129 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 Panasonic Energy Co., Ltd. hold?

Panasonic Energy Co., Ltd. holds 87 US utility patents granted 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 (top 5% of the corpus). This composite metric weighs portfolio volume (40%), grant 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, ranking #83 of 2,332 assignees active in that subclass. Grants appear in 23 CPC subclasses total.

Is Panasonic Energy Co., Ltd.'s patent grant 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 an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Panasonic Energy Co., Ltd.

USPTO PatentsView assignee record - 87 granted patents across 23 technology areas, recorded in grant years 2023–2025. 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, Panasonic ranks #4,129 of 49,997 tracked US assignees by granted-patent volume, with 87 patents across 23 technology areas.

#4,129
of 49,997 US assignees by volume: Top 5%
by Innovation Score (57.7/100): 8.7
avg claims per patent

USPTO PatentsView assignee plate

Corpus R4129 · Foreign Corporation #4,129 · 87 grants

GRANTS-SMALL · TOP-DECILE · PHOTO-FINISH · CPC-FOCUS · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · SPAN-YRS · BOOK-RICH

GRANTS-SMALL 87 grants
TOP-DECILE #4,129/49,997
PHOTO-FINISH NTT
CPC-FOCUS H01M · 23 areas
INNOV-PAR 57.7/100
CLAIMS-PAR 8.7 claims/avg
TYPE-FRNCORP Foreign Corp
SPAN-YRS 2023–2025 · 3y
BOOK-RICH 9/10 fields

Nearest grant-volume peer: NTT Electronics Corporation (±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 Panasonic’s 57.7 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 15.5 pts (27%) Velocity 20.0 pts (35%) Breadth 17.0 pts (29%) Claim depth 5.2 pts (9%)

Qualcomm Incorporated · highest

85
Chicony · near

58
Omega · near

58
Panasonic Energy · this assignee

58
The Raymond · near

58
ZaiNar · near

58
3D Lighting… · lowest

7

What this shows Panasonic's Innovation Score is 57.7/100 (top 5% 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 Panasonic?

Each dot is one of Panasonic’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). Panasonic’s own 8.7 claims/patent is at or below the 16.5 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Panasonic's grants concentrate

Panasonic Energy Co., Ltd. is a focused PatentsView assignee: 23 CPC subclasses with 97.7% 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 (45 grants) versus a trough of 10 in 2023. By volume, Panasonic sits between NTT Electronics Corporation and Suzhou Lekin Semiconductor Co., Ltd..

Panasonic's three-year grant acceleration

Panasonic Energy Co., Ltd. shows 55 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.

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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Panasonic, neither rank-band nor same-CPC leaders (those blocks stay above). In H01M (Processes OR Means), Panasonic ranks #83 of 2,332 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (58 here).

Omega SA 58 The Raymond Corporation 58 Chicony Electronics Co., Ltd. 58 ZaiNar, Inc. 58

Similar claim depth

Nearest assignees by average claims per patent (8.7 here).

Kaohsiung Medical University 8.7 avg Sanyo Denki Co., Ltd. 8.7 avg Kabushiki Kaisha Nihon Micronics 8.7 avg Hitachi Maxell, Ltd. 8.7 avg

Panasonic's Innovation Score vs. every tracked assignee

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

58 Top 5% higher than 95% 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 · 2023–2025

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%
2025partial year	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

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

Panasonic Energy Co., Ltd.'s patent record in context - here's where to go next.

Panasonic Energy Co., Ltd.'s lead technology class is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy), 97.7% of its portfolio - see every assignee active in that class. Explore H01M
Ranked #4,129 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Panasonic Energy Co., Ltd. against NTT Electronics Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 57.7/100 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.