Where does Maxell, Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Maxell, Ltd. ranks #486 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 Maxell, Ltd. hold?

Maxell, Ltd. holds 914 US utility patents granted between 2018 and 2025, spanning 109 technology areas.

What is Maxell, Ltd.'s Innovation Score?

Maxell, Ltd. has an Innovation Score of 63.6 out of 100 (top 2% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Maxell, Ltd. focus on?

Maxell, Ltd.'s top technology area is H04N (Pictorial Communication, e.g. Television) with 493 patents, ranking #62 of 5,951 assignees active in that subclass. Grants appear in 109 CPC subclasses total.

Is Maxell, Ltd.'s patent grant rate increasing or decreasing?

Maxell, Ltd.'s recent grant velocity is +290% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Maxell, Ltd.'s patents?

Maxell, Ltd.'s patents average 11.8 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 Maxell, 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

Maxell, Ltd.

USPTO PatentsView assignee record - 914 granted patents across 109 technology areas, recorded in grant years 2018–2025. 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: H04N (Pictorial Communication, e.g. Television).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Maxell ranks #486 of 49,997 tracked US assignees by granted-patent volume, with 914 patents across 109 technology areas.

#486
of 49,997 US assignees by volume: Top 2%
by Innovation Score (63.6/100): 11.8
avg claims per patent: +290%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R486 · Foreign Corporation #486 · 914 grants

GRANTS-MID · TOP-DECILE · PHOTO-FINISH · CPC-WIDE · INNOV-STRONG · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MID 914 grants
TOP-DECILE #486/49,997
PHOTO-FINISH KT
CPC-WIDE H04N · 109 areas
INNOV-STRONG 63.6/100
CLAIMS-PAR 11.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +290% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: KT 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 Maxell’s 63.6 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 23.6 pts (37%) Velocity 8.0 pts (13%) Breadth 25.0 pts (39%) Claim depth 7.1 pts (11%)

Qualcomm Incorporated · highest

85
Assa Abloy AB · near

64
Boehringer Ingelheim… · near

64
Kimberly-Clark… · near

64
Maxell · this assignee

64
Yeda Research AND… · near

64
3D Lighting… · lowest

7

What this shows Maxell's Innovation Score is 63.6/100 (top 2% 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 Maxell?

Each dot is one of Maxell’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). Maxell’s own 11.8 claims/patent is at or below the 14.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

How Maxell's grant cadence moved

Between 2020–2024, Maxell, Ltd. received 631 grants versus 162 in 2015–2019 (+290% equal-window velocity, above median growth). Across complete PatentsView years, output peaked in 2024 at 146 grants and bottomed in 2018 at 41. Lead class H04N accounts for 53.9% of the portfolio across 109 subclasses. Volume neighbours: THE University OF Tokyo (#482) and Silicon Motion, Inc. (#490).

Maxell's three-year grant acceleration

From 2019–2021 to 2022–2024, Maxell, Ltd. moved from 342 to 410 grants (1.20x the prior three-year total, a multiple, not a CAGR). Among 3,296 tracked assignees with ≥100 grants and ≥20 prior-period grants, that multiple ranks #784. See the growth leaderboard.

THE University OF…

920
Battelle Memorial…

917
Baidu Online Netw…

916
KT

914
NSK

914
Research & Busine…

914
Maxell ◀

914
Ofinno

911
Silicon Motion

910

What this shows Maxell holds 914 patents at rank #486, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Maxell

By rank, the assignees closest to #486 in granted patent volume.

Leaders in H04N (Pictorial Communication)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Maxell, neither rank-band nor same-CPC leaders (those blocks stay above). In H04N (Pictorial Communication), Maxell ranks #62 of 5,951 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (64 here).

Kimberly-Clark Worldwide, Inc. 64 Boehringer Ingelheim International GmbH 64 Assa Abloy AB 64 Yeda Research AND Development Co. Ltd. 64

Similar claim depth

Nearest assignees by average claims per patent (11.8 here).

Teijin Limited 11.8 avg National Central University 11.8 avg Johnstech International Corporation 11.8 avg Robert Bosch Automotive Steering LLC 11.8 avg

Maxell's Innovation Score vs. every tracked assignee

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

64 Top 2% higher than 98% 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 · 2018–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

Maxell, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	41	4.5%
2019	121	13.2%
2020	116	12.7%
2021	105	11.5%
2022	128	14.0%
2023	136	14.9%
2024	146	16.0%
2025partial year	121	13.2%

Which technologies does Maxell, Ltd. patent most?

H04N - Pictorial Communication, e.g. Television 493

G06F - Electric Digital Data Processing 287

G02B - Optical Elements, Systems OR Apparatus 200

G03B - Apparatus OR Arrangements FOR Taking Photographs OR FOR Projecting OR Viewing THEM; Apparatus OR Arrangements Employing Analogous Techniques Using Waves Other Than Optical WAVES; Accessories Therefor 133

G09G - Arrangements OR Circuits FOR Control OF Indicating Devices Using Static Means TO Present Variable Information 132

G06T - Image Data Processing OR Generation, IN General 112

G06V - Image OR Video Recognition OR Understanding 91

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 84

H04L - Transmission OF Digital Information, e.g. Telegraphic Communication 64

H04W - Wireless Communication Networks 58

H04M - Telephonic Communication 55

F21S - Non-portable Lighting DEVICES; Systems THEREOF; Vehicle Lighting Devices Specially Adapted FOR Vehicle Exteriors 43

G11B - Information Storage Based ON Relative Movement Between Record Carrier AND Transducer 42

H04H - Broadcast Communication 42

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 40

Top 15 of 109 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

Maxell, Ltd.'s patent record in context - here's where to go next.

Maxell, Ltd.'s lead technology class is H04N (Pictorial Communication, e.g. Television), 53.9% of its portfolio - see every assignee active in that class. Explore H04N
Ranked #486 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Maxell, Ltd. against THE University OF Tokyo, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 63.6/100 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.