Where does Mitsubishi Paper Mills Limited rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Mitsubishi Paper Mills Limited ranks #5,530 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 Mitsubishi Paper Mills Limited hold?

Mitsubishi Paper Mills Limited holds 62 US utility patents granted between 2015 and 2024, spanning 43 technology areas.

What is Mitsubishi Paper Mills Limited's Innovation Score?

Mitsubishi Paper Mills Limited has an Innovation Score of 46.0 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%).

Is Mitsubishi Paper Mills Limited's patent grant rate increasing or decreasing?

Mitsubishi Paper Mills Limited's recent grant velocity is -52% compared to the prior five-year period (grant years, not application filing dates). Grant activity has slowed relative to earlier years.

What does claim depth mean for Mitsubishi Paper Mills Limited's patents?

Mitsubishi Paper Mills Limited's patents average 7.1 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 Mitsubishi Paper Mills Limited 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

Mitsubishi Paper Mills Limited

Q: What technology areas does Mitsubishi Paper Mills Limited focus on?

Mitsubishi Paper Mills Limited's top technology area is D21H (Pulp COMPOSITIONS; Preparation Thereof NOT Covered BY Subclasses D21c OR D21D; Impregnating OR Coating OF PAPER; Treatment OF Finished Paper NOT Covered BY Class B31 OR Subclass D21G; Paper NOT Otherwise Provided FOR) with 25 patents. Grants appear in 43 CPC subclasses total.

USPTO PatentsView assignee record - 62 granted patents across 43 technology areas, recorded in grant years 2015–2024. 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: D21H (Pulp COMPOSITIONS; Preparation Thereof NOT Covered BY Subclasses D21c OR D21D; Impregnating OR Coating OF PAPER; Treatment OF Finished Paper NOT Covered BY Class B31 OR Subclass D21G; Paper NOT Otherw).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Mitsubishi ranks #5,530 of 49,997 tracked US assignees by granted-patent volume, with 62 patents across 43 technology areas.

#5,530
of 49,997 US assignees by volume: Top 22%
by Innovation Score (46.0/100): 7.1
avg claims per patent: -52%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R5530 · Foreign Corporation #5,530 · 62 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 62 grants
UPPER-Q #5,530/49,997
PHOTO-FINISH Innova
CPC-WIDE D21H · 43 areas
INNOV-PAR 46.0/100
CLAIMS-SPARSE 7.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -52% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Innova 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.

Qualcomm Incorporated · highest

85
Avintiv Specialty… · near

46
McCormick & · near

46
Middle Chart · near

46
Mitsubishi Paper Mills · this assignee

46
The Eastern · near

46
3D Lighting… · lowest

7

What this shows Mitsubishi's Innovation Score is 46.0/100 (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.

Where Mitsubishi's grants concentrate

Mitsubishi Paper Mills Limited is a focused PatentsView assignee: 43 CPC subclasses with 40.3% of grants classified under D21H (Pulp COMPOSITIONS; Preparation Thereof NOT Covered BY Subclasses D21c OR D21D; Impregnating OR Coating OF PAPER; Treatment OF Finished Paper NOT Covered BY Class B31 OR Subclass D21G; Paper NOT Otherw). Peak complete grant year is 2017 (14 grants) versus a trough of 2 in 2020. By volume, Mitsubishi sits between Innova Electronics Corporation and Ningbo Semiconductor International Corporation.

Mitsubishi's three-year grant acceleration

Mitsubishi Paper Mills Limited shows 12 grants in 2022–2024 against only 19 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.

Innova

62
International Aid…

62
Kayaba Industry

62
Korea Kumho Petro…

62
Medivators

62
Microsemi Soc

62
Muffin Incorporat…

62
Ningbo Semiconduc…

62
Mitsubishi Paper… ◀

62

What this shows Mitsubishi holds 62 patents at rank #5,526, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Mitsubishi

By rank, the assignees closest to #5,526 in granted patent volume.

Leaders in D21H (Pulp Compositions)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Mitsubishi, neither rank-band nor same-CPC leaders (those blocks stay above).

Similar innovation score

Nearest assignees by Innovation Score (46 here).

Middle Chart, LLC 46 The Eastern Company 46 Avintiv Specialty Materials Inc. 46 McCormick & Company, Inc. 46

Similar claim depth

Nearest assignees by average claims per patent (7.1 here).

Japan OIL, GAS AND Metals National Corporation 7.1 avg Woodpeckers, LLC 7.1 avg Ulvac, Inc. 7.0 avg Omron Healthcare Co., Ltd. 7.0 avg

Mitsubishi'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 · 2015–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2015–2019 baseline. Full figures in the table below.

View data table

Mitsubishi Paper Mills Limited patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	8	12.9%
2016	4	6.5%
2017	14	22.6%
2018	5	8.1%
2019	11	17.7%
2020	2	3.2%
2021	6	9.7%
2022	6	9.7%
2023	3	4.8%
2024	3	4.8%

Which technologies does Mitsubishi Paper Mills Limited patent most?

D21H - Pulp COMPOSITIONS; Preparation Thereof NOT Covered BY Subclasses D21c OR D21D; Impregnating OR Coating OF PAPER; Treatment OF Finished Paper NOT Covered BY Class B31 OR Subclass D21G; Paper NOT Otherwise Provided FOR 25

B41M - Printing, Duplicating, Marking, OR Copying PROCESSES; Colour Printing, 21

G06F - Electric Digital Data Processing 10

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 10

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 10

B41J - TYPEWRITERS; Selective Printing Mechanisms, i.e. Mechanisms Printing Otherwise Than From A FORME; Correction OF Typographical Errors 8

D06P - Dyeing OR Printing TEXTILES; Dyeing Leather, Furs OR Solid Macromolecular Substances IN ANY Form 6

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 6

C12M - Apparatus FOR Enzymology OR MICROBIOLOGY; Apparatus FOR Culturing Microorganisms FOR Producing Biomass, FOR Growing Cells OR FOR Obtaining Fermentation OR Metabolic Products, i.e. Bioreactors OR Fermenters 5

A01N - Preservation OF Bodies OF Humans OR Animals OR Plants OR Parts Thereof ; Biocides, e.g. AS Disinfectants, AS Pesticides OR AS Herbicides ; Pest Repellants OR ATTRACTANTS; Plant Growth Regulators 5

H01B - CABLES; CONDUCTORS; INSULATORS; Selection OF Materials FOR Their Conductive, Insulating OR Dielectric Properties 4

Y10T - Technical Subjects Covered BY Former US Classification 4

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 4

C12N - Microorganisms OR ENZYMES; Compositions THEREOF; Propagating, Preserving, OR Maintaining MICROORGANISMS; Mutation OR Genetic ENGINEERING; Culture Media 3

D04H - Making Textile Fabrics, e.g. From Fibres OR Filamentary Material ; Fabrics Made BY Such Processes OR Apparatus, e.g. Felts, Non-woven FABRICS; COTTON-WOOL; Wadding ; ; Non-woven Fabrics From Staple Fibres, Filaments OR Yarns, Bonded With AT Least ONE Web-like Material During Their Consolidation 3

Top 15 of 43 technology areas

Where it ranks

Overall rank by patents

#5,530

of 49,997 tracked assignees

Innovation Score

46.0 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

Mitsubishi Paper Mills Limited's patent record in context - here's where to go next.

Mitsubishi Paper Mills Limited's lead technology class is D21H (Pulp COMPOSITIONS; Preparation Thereof NOT Covered BY Subclasses D21c OR D21D; Impregnating OR Coating OF PAPER; Treatment OF Finished Paper NOT Covered BY Class B31 OR Subclass D21G; Paper NOT Otherw), 40.3% of its portfolio - see every assignee active in that class. Explore D21H
Ranked #5,530 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Mitsubishi Paper Mills Limited against Innova Electronics Corporation, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 46.0/100 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.