Where does Mitsubishi Aluminum Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Mitsubishi Aluminum Co., Ltd. ranks #12,123 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 Aluminum Co., Ltd. hold?

Mitsubishi Aluminum Co., Ltd. holds 25 US utility patents granted between 2015 and 2023, spanning 16 technology areas.

What is Mitsubishi Aluminum Co., Ltd.'s Innovation Score?

Mitsubishi Aluminum Co., Ltd. has an Innovation Score of 33.3 out of 100 (44th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Mitsubishi Aluminum Co., Ltd. focus on?

Mitsubishi Aluminum Co., Ltd.'s top technology area is C22C (Alloys) with 17 patents, ranking #110 of 948 assignees active in that subclass. Grants appear in 16 CPC subclasses total.

Is Mitsubishi Aluminum Co., Ltd.'s patent grant rate increasing or decreasing?

Mitsubishi Aluminum Co., Ltd.'s recent grant velocity is -8% 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 Aluminum Co., Ltd.'s patents?

Mitsubishi Aluminum Co., Ltd.'s patents average 9.7 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 Mitsubishi Aluminum 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

Mitsubishi Aluminum Co., Ltd.

USPTO PatentsView assignee record - 25 granted patents across 16 technology areas, recorded in grant years 2015–2023. 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: C22C (Alloys).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Mitsubishi ranks #12,123 of 49,997 tracked US assignees by granted-patent volume, with 25 patents across 16 technology areas.

#12,123
of 49,997 US assignees by volume: 44th percentile
by Innovation Score (33.3/100): 9.7
avg claims per patent: -8%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R12123 · Foreign Corporation #12,123 · 25 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-FLAT · BOOK-FULL

GRANTS-SMALL 25 grants
UPPER-Q #12,123/49,997
PHOTO-FINISH Marty Gilman
CPC-FOCUS C22C · 16 areas
INNOV-THIN 33.3/100
CLAIMS-PAR 9.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-FLAT -8% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Marty Gilman, Inc. (±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 Mitsubishi’s 33.3 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 11.3 pts (34%) Velocity 2.1 pts (6%) Breadth 14.1 pts (42%) Claim depth 5.8 pts (17%)

Qualcomm Incorporated · highest

85
Akatsuki · near

33
Dongguan Shichang… · near

33
DUO Security · near

33
Mitsubishi Aluminum · this assignee

33
Rmit University · near

33
3D Lighting… · lowest

7

What this shows Mitsubishi's Innovation Score is 33.3/100 (44th percentile 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 Mitsubishi?

Each dot is one of Mitsubishi’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). Mitsubishi’s own 9.7 claims/patent is at or below the 13.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Mitsubishi's grants concentrate

Mitsubishi Aluminum Co., Ltd. is a focused PatentsView assignee: 16 CPC subclasses with 68% of grants classified under C22C (Alloys). Peak complete grant year is 2021 (7 grants) versus a trough of 1 in 2018. By volume, Mitsubishi sits between Mighty Fire Breaker LLC and MediGuide Ltd..

Mitsubishi's three-year grant acceleration

Mitsubishi Aluminum Co., Ltd. shows 4 grants in 2022–2024 against only 13 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.

Mighty Fire Break…

25
Minerva Biotechno…

25
Ming Shin Tools

25
Minnetronix

25
MU Ionic Solutions

25
Multivac Sepp Hag…

25
Marty Gilman

25
Mediguide

25
Mitsubishi Alumin… ◀

25

What this shows Mitsubishi holds 25 patents at rank #12,115, 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 #12,115 in granted patent volume.

Leaders in C22C (Alloys)

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). In C22C (Alloys), Mitsubishi ranks #110 of 948 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (33 here).

Dongguan Shichang Metals Factory Ltd. 33 DUO Security, Inc. 33 Akatsuki Inc. 33 Rmit University 33

Mitsubishi's Innovation Score vs. every tracked assignee

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

33 44th percentile higher than 44% 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 · 2015–2023

Grants by year

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

View data table

Mitsubishi Aluminum Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	8.0%
2016	3	12.0%
2017	2	8.0%
2018	1	4.0%
2019	5	20.0%
2020	1	4.0%
2021	7	28.0%
2022	3	12.0%
2023	1	4.0%

Which technologies does Mitsubishi Aluminum Co., Ltd. patent most?

C22C - Alloys 17

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 15

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 14

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 10

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 10

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 8

Y10T - Technical Subjects Covered BY Former US Classification 6

B21C - Manufacture OF Metal Sheets, Wire, Rods, Tubes, Profiles OR Like Semi-manufactured Products Otherwise Than BY ROLLING; Auxiliary Operations Used IN Connection With Metal-working Without Essentially Removing Material 6

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 4

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 4

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 2

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 1

H01L - Semiconductor Devices NOT Covered BY Class H10 1

F17C - Vessels FOR Containing OR Storing Compressed, Liquefied OR Solidified GASES; Fixed-capacity GAS-HOLDERS; Filling Vessels With, OR Discharging From Vessels, Compressed, Liquefied, OR Solidified Gases 1

Top 15 of 16 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

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

Mitsubishi Aluminum Co., Ltd.'s lead technology class is C22C (Alloys), 68% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #12,123 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Mitsubishi Aluminum Co., Ltd. against Mighty Fire Breaker LLC, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.3/100 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.