USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Mitsubishi Heavy Industries Engineering, Ltd.

USPTO PatentsView assignee record - 115 granted patents across 73 technology areas, active 2018–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B01D (SEPARATION).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

115

Total patents granted

CPC technology areas

8.3

Avg claims per patent

+35%

5-year filing velocity

The verdict

Mitsubishi holds 115 US patents across 73 technology areas, rank #3,260 of 50,000 tracked assignees.

#3,260
of 50,000 US assignees by volume: Top 16%
by Innovation Score (48.5/100): 8.3
avg claims per patent: +35%
filing velocity, last 5 yrs

Portfolio overview

Mitsubishi Heavy Industries Engineering, Ltd. has been granted 115 US utility patents between 2018 and 2023, placing Mitsubishi Heavy Industries Engineering, Ltd. at rank #3,260 across all assignees tracked by PlainPatent. This portfolio spans 73 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.3 claims per patent with primary concentration in B01D (SEPARATION). As a Foreign Corporation, Mitsubishi Heavy Industries Engineering, Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Mitsubishi sits between Hunter Engineering Company (115 patents, rank #3,256) and Pi-design Ag (115 patents, rank #3,264) - the closest US assignees by grant volume. The composite Innovation Score of 48.5/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 66 grants, compared with 49 in the 2015–2019 window, a +35% shift in five-year velocity. Steady filing volume suggests sustained innovation without dramatic pivots. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. Mitsubishi Heavy Industries Engineering, Ltd.'s 8.3 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 73 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Mitsubishi Heavy Industries Engineering, Ltd. against peers pursuing similar technology classes.

Hunter Engineering

115
Institut Curie

115
Messier-bugatti-d…

115
Minka Lighting

115
National Taiwan N…

115
Novomatic

115
Omron Automotive

115
Pi-design

115
Mitsubishi Heavy… ◀

115

What this shows Mitsubishi holds 115 patents at rank #3,260, 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 #3,260 in granted patent volume.

Leaders in B01D (Separation)

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

Mitsubishi's Innovation Score vs. every tracked assignee

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

49 Top 16% higher than 84% of 50,000 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

Mitsubishi Heavy Industries Engineering, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	16	13.9%
2019	33	28.7%
2020	18	15.7%
2021	24	20.9%
2022	16	13.9%
2023	8	7.0%

Which technologies does Mitsubishi Heavy Industries Engineering, Ltd. patent most?

B01D - SEPARATION 69

Y02C - CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG] 40

Y02A - TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE 21

C01B - NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C 19

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 16

C02F - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 16

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 15

B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 14

B60L - PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES ; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES ; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL ; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICL 11

F01K - STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES 9

F23J - REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 9

Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION 8

B61B - RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR 8

B61F - RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES 8

B61L - GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC 7

Top 15 of 73 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Growing

Where it ranks

Overall rank by patents

#3,260

Across all tracked assignees

Innovation Score

48.5 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does Mitsubishi Heavy Industries Engineering, Ltd. hold?

Mitsubishi Heavy Industries Engineering, Ltd. holds 115 US granted patents filed between 2018 and 2023, spanning 73 technology areas.

What is Mitsubishi Heavy Industries Engineering, Ltd.'s Innovation Score?

Mitsubishi Heavy Industries Engineering, Ltd. has an Innovation Score of 48.5 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Mitsubishi Heavy Industries Engineering, Ltd. focus on?

Mitsubishi Heavy Industries Engineering, Ltd.'s top technology area is B01D (SEPARATION) with 69 patents. The company has filed patents in 73 CPC subclasses total.

Is Mitsubishi Heavy Industries Engineering, Ltd.'s patent filing rate increasing or decreasing?

Mitsubishi Heavy Industries Engineering, Ltd.'s recent filing velocity is +35% compared to the prior five-year period. The company is maintaining or growing its patent output.

What does claim depth mean for Mitsubishi Heavy Industries Engineering, Ltd.'s patents?

Mitsubishi Heavy Industries Engineering, Ltd.'s patents average 8.3 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Mitsubishi Heavy Industries Engineering, 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.

How to use this portfolio

Mitsubishi's 115 grants land it in the top 16% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - Mitsubishi ranks #3,260 of 50,000. Top 50 holders
Most of this portfolio concentrates in B01D - see who else leads that technology area. B01D leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.