Where does IHI Aerospace Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), IHI Aerospace Co., Ltd. ranks #9,522 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 IHI Aerospace Co., Ltd. hold?

IHI Aerospace Co., Ltd. holds 33 US utility patents granted 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 (top 25% of the corpus). This composite metric weighs portfolio volume (40%), grant 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, ranking #547 of 2,877 assignees active in that subclass. Grants appear in 43 CPC subclasses total.

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

IHI Aerospace Co., Ltd.'s recent grant velocity is -59% compared to the prior five-year period (grant years, not application filing dates). Grant 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 an aggregate descriptive count from the grant record; it does not establish claim scope, legal strength, enforceability, or design-around risk.

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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

IHI Aerospace Co., Ltd.

USPTO PatentsView assignee record - 33 granted patents across 43 technology areas, recorded in grant years 2015–2025. 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: Y02T (Climate Change Mitigation Technologies Related TO Transportation).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, IHI ranks #9,522 of 49,997 tracked US assignees by granted-patent volume, with 33 patents across 43 technology areas.

#9,522
of 49,997 US assignees by volume: Top 25%
by Innovation Score (44.8/100): 7.4
avg claims per patent: -59%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9522 · Foreign Corporation #9,522 · 33 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 33 grants
UPPER-Q #9,522/49,997
PHOTO-FINISH HashiCorp
CPC-WIDE Y02T · 43 areas
INNOV-PAR 44.8/100
CLAIMS-SPARSE 7.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -59% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: HashiCorp (±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 IHI’s 44.8 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 12.2 pts (27%) Velocity 5.0 pts (11%) Breadth 23.2 pts (52%) Claim depth 4.5 pts (10%)

Qualcomm Incorporated · highest

85
Eagle View · near

45
IHI Aerospace · this assignee

45
Prinsco · near

45
Telepathy Labs · near

45
Zymeworks · near

45
3D Lighting… · lowest

7

What this shows IHI's Innovation Score is 44.8/100 (top 25% 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 IHI?

Each dot is one of IHI’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). IHI’s own 7.4 claims/patent is at or below the 14.1 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where IHI's grants concentrate

IHI Aerospace Co., Ltd. is a focused PatentsView assignee: 43 CPC subclasses with 30.3% of grants classified under Y02T (Climate Change Mitigation Technologies Related TO Transportation). Peak complete grant year is 2016 (5 grants) versus a trough of 1 in 2021. By volume, IHI sits between HashiCorp and ITE Tech. Inc..

IHI's three-year grant acceleration

IHI Aerospace Co., Ltd. shows 6 grants in 2022–2024 against only 8 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.

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.

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for IHI, neither rank-band nor same-CPC leaders (those blocks stay above). In Y02T (Climate Change Mitigation Technologies Related TO Transpo…), IHI ranks #547 of 2,877 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (45 here).

Telepathy Labs, Inc. 45 Eagle View Technologies, Inc. 45 Zymeworks Inc. 45 Prinsco, Inc. 45

IHI's Innovation Score vs. every tracked assignee

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

45 Top 25% higher than 75% 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 · 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%
2025partial year	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

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

IHI Aerospace Co., Ltd.'s patent record in context - here's where to go next.

IHI Aerospace Co., Ltd.'s lead technology class is Y02T (Climate Change Mitigation Technologies Related TO Transportation), 30.3% of its portfolio - see every assignee active in that class. Explore Y02T
Ranked #9,522 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare IHI Aerospace Co., Ltd. against HashiCorp, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 44.8/100 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.