Where does IHI Rotating Machinery Engineering Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), IHI Rotating Machinery Engineering Co., Ltd. ranks #47,599 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 Rotating Machinery Engineering Co., Ltd. hold?

IHI Rotating Machinery Engineering Co., Ltd. holds 5 US utility patents granted between 2018 and 2024, spanning 8 technology areas.

What is IHI Rotating Machinery Engineering Co., Ltd.'s Innovation Score?

IHI Rotating Machinery Engineering Co., Ltd. has an Innovation Score of 26.0 out of 100 (19th percentile 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 Rotating Machinery Engineering Co., Ltd. focus on?

IHI Rotating Machinery Engineering Co., Ltd.'s top technology area is F04D (Non-positive-displacement Pumps) with 4 patents, ranking #335 of 1,034 assignees active in that subclass. Grants appear in 8 CPC subclasses total.

Is IHI Rotating Machinery Engineering Co., Ltd.'s patent grant rate increasing or decreasing?

IHI Rotating Machinery Engineering Co., Ltd.'s recent grant velocity is -75% 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 Rotating Machinery Engineering Co., Ltd.'s patents?

IHI Rotating Machinery Engineering Co., Ltd.'s patents average 10.8 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

IHI Rotating Machinery Engineering Co., Ltd.

Q: How is the IHI Rotating Machinery Engineering 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 PatentsView assignee record - 5 granted patents across 8 technology areas, recorded in grant years 2018–2024. 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: F04D (Non-positive-displacement Pumps).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, IHI ranks #47,599 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 8 technology areas.

#47,599
of 49,997 US assignees by volume: 19th percentile
by Innovation Score (26.0/100): 10.8
avg claims per patent: -75%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R47599 · Foreign Corporation #47,599 · 5 grants

GRANTS-MICRO · BOTTOM-DECILE · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-MICRO 5 grants
BOTTOM-DECILE #47,599/49,997
PHOTO-FINISH IFA-
CPC-NARROW F04D · 8 areas
INNOV-THIN 26.0/100
CLAIMS-PAR 10.8 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -75% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: IFA-Technologies GmbH (±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 26.0 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 6.2 pts (24%) Velocity 3.3 pts (13%) Breadth 10.0 pts (38%) Claim depth 6.5 pts (25%)

Qualcomm Incorporated · highest

85
IHI Rotating… · this assignee

26
3D Lighting… · lowest

7

What this shows IHI's Innovation Score is 26.0/100 (19th percentile 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 10.8 claims/patent is ABOVE the 8.8 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where IHI's grants concentrate

IHI Rotating Machinery Engineering Co., Ltd. is a focused PatentsView assignee: 8 CPC subclasses with 80% of grants classified under F04D (Non-positive-displacement Pumps). Peak complete grant year is 2018 (2 grants) versus a trough of 1 in 2024. By volume, IHI sits between IFA-Technologies GmbH and Ikoi S.P.A..

IHI's three-year grant acceleration

IHI Rotating Machinery Engineering Co., Ltd. shows 1 grants in 2022–2024 against only 2 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.

Ifa-

5
Ifly Holdings

5
Ifom —Fondazione…

5
IGL Pharma

5
IHI Shibaura Mach…

5
Iida

5
Iida Denki Kogyo

5
Ikoi S P A

5
IHI Rotating Mach… ◀

5

What this shows IHI holds 5 patents at rank #47,597, 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 #47,597 in granted patent volume.

Leaders in F04D (Non-positive-displacement Pumps)

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, grant velocity, technology breadth, and claim depth (0–100)

26 19th percentile higher than 19% 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 · 2018–2024

Grants by year

Teal-shaded recent years (2020–present) versus the 2018–2019 baseline. Full figures in the table below.

View data table

IHI Rotating Machinery Engineering Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2018	2	40.0%
2019	2	40.0%
2024	1	20.0%

Which technologies does IHI Rotating Machinery Engineering Co., Ltd. patent most?

F04D - Non-positive-displacement Pumps 4

F05D - Indexing Scheme FOR Aspects Relating TO Non-positive-displacement Machines OR Engines, Gas-turbines OR Jet-propulsion Plants 2

F16C - SHAFTS; Flexible SHAFTS; Elements OR Crankshaft MECHANISMS; Rotary Bodies Other Than Gearing ELEMENTS; Bearings 2

G01F - Measuring Volume, Volume Flow, Mass Flow OR Liquid LEVEL; Metering BY Volume 1

F04B - Positive-displacement Machines FOR LIQUIDS; Pumps 1

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 1

G01M - Testing Static OR Dynamic Balance OF Machines OR STRUCTURES; Testing OF Structures OR Apparatus, NOT Otherwise Provided FOR 1

F05B - Indexing Scheme Relating TO Wind, Spring, Weight, Inertia OR Like Motors, TO Machines OR Engines FOR Liquids Covered BY Subclasses F03b, F03d AND F03g 1

Top 8 of 8 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 Rotating Machinery Engineering Co., Ltd.'s patent record in context - here's where to go next.

IHI Rotating Machinery Engineering Co., Ltd.'s lead technology class is F04D (Non-positive-displacement Pumps), 80% of its portfolio - see every assignee active in that class. Explore F04D
Ranked #47,599 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare IHI Rotating Machinery Engineering Co., Ltd. against IFA-Technologies GmbH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.0/100 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.