USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Mitsubishi Heavy Industries Thermal Systems, Ltd.

USPTO PatentsView assignee record - 161 granted patents across 63 technology areas, active 2017–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F04C (ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS).

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

Explore the portfolio See the ranking

161

Total patents granted

CPC technology areas

8.0

Avg claims per patent

+110%

5-year filing velocity

The verdict

Mitsubishi holds 161 US patents across 63 technology areas, rank #2,424 of 50,000 tracked assignees.

#2,424
of 50,000 US assignees by volume: Top 11%
by Innovation Score (51.9/100): 8.0
avg claims per patent: +110%
filing velocity, last 5 yrs

Portfolio overview

Mitsubishi Heavy Industries Thermal Systems, Ltd. has been granted 161 US utility patents between 2017 and 2025, placing Mitsubishi Heavy Industries Thermal Systems, Ltd. at rank #2,424 across all assignees tracked by PlainPatent. This portfolio spans 63 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.0 claims per patent with primary concentration in F04C (ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS). As a Foreign Corporation, Mitsubishi Heavy Industries Thermal Systems, Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Mitsubishi sits between Equinix, Inc. (161 patents, rank #2,420) and Staton Techiya Llc (161 patents, rank #2,428) - the closest US assignees by grant volume. The composite Innovation Score of 51.9/100 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 109 grants, compared with 52 in the 2015–2019 window, a +110% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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 Thermal Systems, Ltd.'s 8.0 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 63 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Mitsubishi Heavy Industries Thermal Systems, Ltd. against peers pursuing similar technology classes.

Equinix

161
Graham Packaging

161
HCL

161
ISP Investments

161
Nivarox-far

161
Positec Power Too…

161
Powerchip Semicon…

161
Staton Techiya

161
Mitsubishi Heavy… ◀

161

What this shows Mitsubishi holds 161 patents at rank #2,424, 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 #2,424 in granted patent volume.

Leaders in F04C (Rotary-piston)

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)

52 Top 11% higher than 89% 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 · 2017–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Mitsubishi Heavy Industries Thermal Systems, Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	0.6%
2018	18	11.2%
2019	33	20.5%
2020	27	16.8%
2021	17	10.6%
2022	27	16.8%
2023	8	5.0%
2024	17	10.6%
2025	13	8.1%

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

F04C - ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS 52

F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 51

F04B - POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 41

B60H - ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES 39

H02K - DYNAMO-ELECTRIC MACHINES 24

F04D - NON-POSITIVE-DISPLACEMENT PUMPS 22

H02M - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 19

Y02B - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS 18

F24F - AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 17

H02P - CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 17

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 13

F28F - DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 12

F01C - ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES 12

F28D - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 9

F25D - REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR 6

Top 15 of 63 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Accelerating

Where it ranks

Overall rank by patents

#2,424

Across all tracked assignees

Innovation Score

51.9 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 Thermal Systems, Ltd. hold?

Mitsubishi Heavy Industries Thermal Systems, Ltd. holds 161 US granted patents filed between 2017 and 2025, spanning 63 technology areas.

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

Mitsubishi Heavy Industries Thermal Systems, Ltd. has an Innovation Score of 51.9 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 Thermal Systems, Ltd. focus on?

Mitsubishi Heavy Industries Thermal Systems, Ltd.'s top technology area is F04C (ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS) with 52 patents. The company has filed patents in 63 CPC subclasses total.

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

Mitsubishi Heavy Industries Thermal Systems, Ltd.'s recent filing velocity is +110% compared to the prior five-year period. This indicates accelerating innovation.

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

Mitsubishi Heavy Industries Thermal Systems, Ltd.'s patents average 8.0 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the Mitsubishi Heavy Industries Thermal Systems, 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 161 grants land it in the top 11% 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 #2,424 of 50,000. Top 50 holders
Most of this portfolio concentrates in F04C - see who else leads that technology area. F04C 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.