USPTO 2015–2025 USPTO PatentsView Foreign Corporation

IHI Aerospace Co., Ltd.

USPTO PatentsView assignee record - 33 granted patents across 43 technology areas, active 2015–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: Y02T (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

7.4

Avg claims per patent

-50%

5-year filing velocity

The verdict

IHI holds 33 US patents across 43 technology areas, rank #9,522 of 50,000 tracked assignees.

#9,522
of 50,000 US assignees by volume: Top 25%
by Innovation Score (44.8/100): 7.4
avg claims per patent: -50%
filing velocity, last 5 yrs

Portfolio overview

IHI Aerospace Co., Ltd. has been granted 33 US utility patents between 2015 and 2025, placing IHI Aerospace Co., Ltd. at rank #9,522 across all assignees tracked by PlainPatent. This portfolio spans 43 distinct Cooperative Patent Classification (CPC) subclasses, averaging 7.4 claims per patent with primary concentration in Y02T (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION). As a Foreign Corporation, IHI Aerospace Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, IHI sits between Hashicorp (33 patents, rank #9,518) and ITE Tech. Inc. (33 patents, rank #9,526) - the closest US assignees by grant volume. The composite Innovation Score of 44.8/100 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 11 grants, compared with 22 in the 2015–2019 window, a -50% 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. IHI Aerospace Co., Ltd.'s 7.4 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 43 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark IHI Aerospace Co., Ltd. against peers pursuing similar technology classes.

Hashicorp

33
Hefei Core Storage

33
Hotalux

33
Hydra Biosciences

33
IHI Charging Syst…

33
Iq-analog

33
Isorg

33
ITE Tech

33
IHI Aerospace ◀

33

What this shows IHI holds 33 patents at rank #9,522, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near IHI

By rank, the assignees closest to #9,522 in granted patent volume.

Leaders in Y02T (Climate Change Mitigation Technologies Related TO Transpo…)

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

IHI's Innovation Score vs. every tracked assignee

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

45 Top 25% higher than 75% 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 · 2015–2025

Grants by year

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

View data table

IHI Aerospace Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	12.1%
2016	5	15.2%
2017	4	12.1%
2018	4	12.1%
2019	5	15.2%
2020	2	6.1%
2021	1	3.0%
2022	1	3.0%
2023	3	9.1%
2024	2	6.1%
2025	2	6.1%

Which technologies does IHI Aerospace Co., Ltd. patent most?

Y02T - CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION 10

F05D - INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS 10

F01D - NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 8

B29C - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 8

B64G - COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR 7

F02K - JET-PROPULSION PLANTS 7

B29L - INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES 5

H01Q - ANTENNAS, i.e. RADIO AERIALS 4

B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR ; MOULDS, ; REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS 4

F16B - DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING 3

F04D - NON-POSITIVE-DISPLACEMENT PUMPS 3

B64C - AEROPLANES; HELICOPTERS 3

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 3

B29D - PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 3

F41J - TARGETS; TARGET RANGES; BULLET CATCHERS 3

Top 15 of 43 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#9,522

Across all tracked assignees

Innovation Score

44.8 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 IHI Aerospace Co., Ltd. hold?

IHI Aerospace Co., Ltd. holds 33 US granted patents filed between 2015 and 2025, spanning 43 technology areas.

What is IHI Aerospace Co., Ltd.'s Innovation Score?

IHI Aerospace Co., Ltd. has an Innovation Score of 44.8 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does IHI Aerospace Co., Ltd. focus on?

IHI Aerospace Co., Ltd.'s top technology area is Y02T (CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION) with 10 patents. The company has filed patents in 43 CPC subclasses total.

Is IHI Aerospace Co., Ltd.'s patent filing rate increasing or decreasing?

IHI Aerospace Co., Ltd.'s recent filing velocity is -50% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for IHI Aerospace Co., Ltd.'s patents?

IHI Aerospace Co., Ltd.'s patents average 7.4 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the IHI Aerospace 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.

How to use this portfolio

IHI's 33 grants land it in the top 25% 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 - IHI ranks #9,522 of 50,000. Top 50 holders
Most of this portfolio concentrates in Y02T - see who else leads that technology area. Y02T 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.