PlainPatent
USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Mitsubishi Hitachi Power Systems, Ltd.

USPTO PatentsView assignee record - 638 granted patents across 145 technology areas, active 2015–2021. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: F05D (INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS).

Explore the portfolio See the ranking
638
Total patents granted
145
CPC technology areas
8.8
Avg claims per patent
-72%
5-year filing velocity

The verdict

Mitsubishi holds 638 US patents across 145 technology areas, rank #712 of 50,000 tracked assignees.

#712
of 50,000 US assignees by volume
Top 10%
by Innovation Score (52.6/100)
8.8
avg claims per patent
-72%
filing velocity, last 5 yrs

Portfolio overview

Mitsubishi Hitachi Power Systems, Ltd. has been granted 638 US utility patents between 2015 and 2021, placing Mitsubishi Hitachi Power Systems, Ltd. at rank #712 across all assignees tracked by PlainPatent. This portfolio spans 145 distinct Cooperative Patent Classification (CPC) subclasses, averaging 8.8 claims per patent with primary concentration in F05D (INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS). As a Foreign Corporation, Mitsubishi Hitachi Power Systems, Ltd. is one of the broader-portfolio assignees in the PatentsView dataset. By volume, Mitsubishi sits between Mitsubishi Materials Corporation (640 patents, rank #708) and Schlage Lock Company Llc (637 patents, rank #716) - the closest US assignees by grant volume. The composite Innovation Score of 52.6/100 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 139 grants, compared with 499 in the 2015–2019 window, a -72% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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 Hitachi Power Systems, Ltd.'s 8.8 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a diversified footprint across 100+ CPC subclasses spreads risk across many technology fronts. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Mitsubishi Hitachi Power Systems, Ltd. against peers pursuing similar technology classes.

Who files at Mitsubishi's volume?

Granted US patents 2015–2025 versus its nearest-ranked assignees by volume, this company marked ◀

patents

What this shows Mitsubishi holds 638 patents at rank #712, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Source USPTO PatentsView, granted utility patents As of 2015–2025

Companies ranked near Mitsubishi

By rank, the assignees closest to #712 in granted patent volume.

Leaders in F05D (Indexing Scheme FOR Aspects Relating TO Non-positive-disp…)

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)

53 Top 10% higher than 90% of 50,000 US assignees

0–10: 687 US assignees (1%). Below this entry. 10–20: 2,527 US assignees (5%). Below this entry. 20–30: 13,162 US assignees (26%). Below this entry. 30–40: 15,294 US assignees (31%). Below this entry. 40–50: 11,491 US assignees (23%). Below this entry. 50–60: 5,058 US assignees (10%). This entry sits in this band. 60–70: 1,537 US assignees (3%). Above this entry. 70–80: 234 US assignees (0%). Above this entry. 80–90: 10 US assignees (0%). Above this entry. 90–100: 0 US assignees (0%). Above this entry. This assignee 0 100 every tracked assignee, bucketed by value

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

-50050100150 2015201620172018201920202021 1
USPTO utility patent grants by year · 2015–2021

Grants by year

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

View data table
Mitsubishi Hitachi Power Systems, Ltd. patent grants by year, 2015–2025
Year Patents Granted Share of Period
2015 78 12.2%
2016 94 14.7%
2017 111 17.4%
2018 92 14.4%
2019 124 19.4%
2020 138 21.6%
2021 1 0.2%

Which technologies does Mitsubishi Hitachi Power Systems, Ltd. patent most?

Top 15 of 145 technology areas

Patent Moat Analysis

Portfolio Volume Moderate
Tech Breadth Diversified
Claim Depth Simple
Velocity Declining

Where it ranks

Overall rank by patents

#712

Across all tracked assignees

Innovation Score

52.6 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 Hitachi Power Systems, Ltd. hold?
Mitsubishi Hitachi Power Systems, Ltd. holds 638 US granted patents filed between 2015 and 2021, spanning 145 technology areas.
What is Mitsubishi Hitachi Power Systems, Ltd.'s Innovation Score?
Mitsubishi Hitachi Power Systems, Ltd. has an Innovation Score of 52.6 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 Hitachi Power Systems, Ltd. focus on?
Mitsubishi Hitachi Power Systems, Ltd.'s top technology area is F05D (INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS) with 275 patents. The company has filed patents in 145 CPC subclasses total.
Is Mitsubishi Hitachi Power Systems, Ltd.'s patent filing rate increasing or decreasing?
Mitsubishi Hitachi Power Systems, Ltd.'s recent filing velocity is -72% compared to the prior five-year period. Filing activity has slowed relative to earlier years.
What does claim depth mean for Mitsubishi Hitachi Power Systems, Ltd.'s patents?
Mitsubishi Hitachi Power Systems, Ltd.'s patents average 8.8 claims each. This is relatively simple claim structure, typical for focused inventions.
How is the Mitsubishi Hitachi Power 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 638 grants land it in the top 10% 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 #712 of 50,000. Top 50 holders
  • Most of this portfolio concentrates in F05D - see who else leads that technology area. F05D 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

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.