Where does Mitsui E&S Machinery Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Mitsui E&S Machinery Co., Ltd. ranks #20,095 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 Mitsui E&S Machinery Co., Ltd. hold?

Mitsui E&S Machinery Co., Ltd. holds 14 US utility patents granted between 2018 and 2023, spanning 19 technology areas.

What is Mitsui E&S Machinery Co., Ltd.'s Innovation Score?

Mitsui E&S Machinery Co., Ltd. has an Innovation Score of 33.0 out of 100 (43rd 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 Mitsui E&S Machinery Co., Ltd. focus on?

Mitsui E&S Machinery Co., Ltd.'s top technology area is B01D (Separation) with 3 patents, ranking #1,415 of 3,536 assignees active in that subclass. Grants appear in 19 CPC subclasses total.

Is Mitsui E&S Machinery Co., Ltd.'s patent grant rate increasing or decreasing?

Mitsui E&S Machinery Co., Ltd.'s recent grant velocity is +150% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Mitsui E&S Machinery Co., Ltd.'s patents?

Mitsui E&S Machinery 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 Mitsui E&S Machinery 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

Mitsui E&S Machinery Co., Ltd.

USPTO PatentsView assignee record - 14 granted patents across 19 technology areas, recorded in grant years 2018–2023. 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: B01D (Separation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Mitsui ranks #20,095 of 49,997 tracked US assignees by granted-patent volume, with 14 patents across 19 technology areas.

#20,095
of 49,997 US assignees by volume: 43rd percentile
by Innovation Score (33.0/100): 8.7
avg claims per patent: +150%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R20095 · Foreign Corporation #20,095 · 14 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 14 grants
MID-PACK #20,095/49,997
PHOTO-FINISH Midatech
CPC-FOCUS B01D · 19 areas
INNOV-THIN 33.0/100
CLAIMS-PAR 8.7 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +150% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Midatech Ltd. (±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 Mitsui’s 33.0 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 9.4 pts (28%) Velocity 3.0 pts (9%) Breadth 15.4 pts (47%) Claim depth 5.2 pts (16%)

Qualcomm Incorporated · highest

85
Mitsui E&S Machinery · this assignee

33
3D Lighting… · lowest

7

What this shows Mitsui's Innovation Score is 33.0/100 (43rd 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 Mitsui?

Each dot is one of Mitsui’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). Mitsui’s own 8.7 claims/patent is at or below the 15.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Mitsui's grants concentrate

Mitsui E&S Machinery Co., Ltd. is a focused PatentsView assignee: 19 CPC subclasses with 21.4% of grants classified under B01D (Separation). Peak complete grant year is 2019 (3 grants) versus a trough of 1 in 2018. By volume, Mitsui sits between Midatech Ltd. and Montabert.

Mitsui's three-year grant acceleration

Mitsui E&S Machinery Co., Ltd. shows 4 grants in 2022–2024 against only 9 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.

Midatech

14
Minima Processor…

14
Miranda & Irmao L…

14
Mirrorcle

14
Miyoshi OIL & FAT

14
Moca System

14
Mondi Products

14
Montabert

14
Mitsui E&S Machin… ◀

14

What this shows Mitsui holds 14 patents at rank #20,056, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Mitsui

By rank, the assignees closest to #20,056 in granted patent volume.

Leaders in B01D (Separation)

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

Mitsui's Innovation Score vs. every tracked assignee

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

33 43rd percentile higher than 43% 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 · 2018–2023

Grants by year

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

View data table

Mitsui E&S Machinery Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	1	7.1%
2019	3	21.4%
2020	3	21.4%
2021	3	21.4%
2022	2	14.3%
2023	2	14.3%

Which technologies does Mitsui E&S Machinery Co., Ltd. patent most?

B01D - Separation 3

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 3

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 2

B01J - Chemical OR Physical Processes, e.g. Catalysis OR Colloid CHEMISTRY; Their Relevant Apparatus 2

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 2

H01J - Electric Discharge Tubes OR Discharge Lamps 2

B65G - Transport OR Storage Devices, e.g. Conveyors FOR Loading OR Tipping, Shop Conveyor Systems OR Pneumatic Tube Conveyors 2

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 2

C03C - Chemical Composition OF Glasses, Glazes OR Vitreous ENAMELS; Surface Treatment OF GLASS; Surface Treatment OF Fibres OR Filaments Made From Glass, Minerals OR SLAGS; Joining Glass TO Glass OR Other Materials 1

B60P - Vehicles Adapted FOR Load Transportation OR TO Transport, TO Carry, OR TO Comprise Special Loads OR Objects 1

Y02T - Climate Change Mitigation Technologies Related TO Transportation 1

F16J - Pistons ; CYLINDERS; Sealings 1

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

G01S - Radio DIRECTION-FINDING; Radio NAVIGATION; Determining Distance OR Velocity BY USE OF Radio WAVES; Locating OR Presence-detecting BY USE OF THE Reflection OR Reradiation OF Radio WAVES; Analogous Arrangements Using Other Waves 1

B65D - Containers FOR Storage OR Transport OF Articles OR Materials, e.g. Bags, Barrels, Bottles, Boxes, Cans, Cartons, Crates, Drums, Jars, Tanks, Hoppers, Forwarding CONTAINERS; Accessories, Closures, OR Fittings THEREFOR; Packaging ELEMENTS; Packages 1

Top 15 of 19 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

Mitsui E&S Machinery Co., Ltd.'s patent record in context - here's where to go next.

Mitsui E&S Machinery Co., Ltd.'s lead technology class is B01D (Separation), 21.4% of its portfolio - see every assignee active in that class. Explore B01D
Ranked #20,095 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Mitsui E&S Machinery Co., Ltd. against Midatech Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.0/100 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.