Where does IHI Machinery AND Furnace Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), IHI Machinery AND Furnace Co., Ltd. ranks #13,478 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 Machinery AND Furnace Co., Ltd. hold?

IHI Machinery AND Furnace Co., Ltd. holds 22 US utility patents granted between 2015 and 2023, spanning 19 technology areas.

What is IHI Machinery AND Furnace Co., Ltd.'s Innovation Score?

IHI Machinery AND Furnace Co., Ltd. has an Innovation Score of 33.2 out of 100 (44th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

IHI Machinery AND Furnace Co., Ltd.'s recent grant velocity is -53% 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 Machinery AND Furnace Co., Ltd.'s patents?

IHI Machinery AND Furnace Co., Ltd.'s patents average 7.9 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 Machinery AND Furnace 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 Machinery AND Furnace Co., Ltd.

Q: What technology areas does IHI Machinery AND Furnace Co., Ltd. focus on?

IHI Machinery AND Furnace Co., Ltd.'s top technology area is F27D (Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace) with 14 patents. Grants appear in 19 CPC subclasses total.

USPTO PatentsView assignee record - 22 granted patents across 19 technology areas, recorded in grant years 2015–2023. 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: F27D (Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace).

Compiled by PlainPatent · May 15, 2026

RSS updates for this company

Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, IHI ranks #13,478 of 49,997 tracked US assignees by granted-patent volume, with 22 patents across 19 technology areas.

#13,478
of 49,997 US assignees by volume: 44th percentile
by Innovation Score (33.2/100): 7.9
avg claims per patent: -53%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R13478 · Foreign Corporation #13,478 · 22 grants

GRANTS-SMALL · MID-PACK · PHOTO-FINISH · CPC-FOCUS · INNOV-THIN · CLAIMS-SPARSE · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 22 grants
MID-PACK #13,478/49,997
PHOTO-FINISH Humane
CPC-FOCUS F27D · 19 areas
INNOV-THIN 33.2/100
CLAIMS-SPARSE 7.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -53% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Humane, Inc. (±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.

Qualcomm Incorporated · highest

85
IHI Machinery AND… · this assignee

33
3D Lighting… · lowest

7

What this shows IHI's Innovation Score is 33.2/100 (44th 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.

Where IHI's grants concentrate

IHI Machinery AND Furnace Co., Ltd. is a focused PatentsView assignee: 19 CPC subclasses with 63.6% of grants classified under F27D (Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace). Peak complete grant year is 2019 (5 grants) versus a trough of 1 in 2022. By volume, IHI sits between Humane, Inc. and International Currency Technologies Corporation.

IHI's three-year grant acceleration

IHI Machinery AND Furnace Co., Ltd. shows 3 grants in 2022–2024 against only 9 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.

Humane

22
Hydis

22
Hyperlight

22
Idea Nuova

22
Imax Theatres Int…

22
Importla

22
Infinitesima

22
International Cur…

22
IHI Machinery AND… ◀

22

What this shows IHI holds 22 patents at rank #13,476, 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 #13,476 in granted patent volume.

Leaders in F27D (Details OR Accessories OF Furnaces)

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)

33 44th percentile higher than 44% 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 · 2015–2023

Grants by year

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

View data table

IHI Machinery AND Furnace Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	2	9.1%
2016	2	9.1%
2017	4	18.2%
2018	2	9.1%
2019	5	22.7%
2020	4	18.2%
2022	1	4.5%
2023	2	9.1%

Which technologies does IHI Machinery AND Furnace Co., Ltd. patent most?

F27D - Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace 14

C21D - Modifying THE Physical Structure OF Ferrous METALS; General Devices FOR Heat Treatment OF Ferrous OR Non-ferrous Metals OR ALLOYS; Making Metal Malleable, e.g. BY Decarburisation OR Tempering 14

F27B - Furnaces, Kilns, Ovens OR Retorts IN GENERAL; Open Sintering OR Like Apparatus 13

C23C - Coating Metallic MATERIAL; Coating Material With Metallic MATERIAL; Surface Treatment OF Metallic Material BY Diffusion Into THE Surface, BY Chemical Conversion OR SUBSTITUTION; Coating BY Vacuum Evaporation, BY Sputtering, BY ION Implantation OR BY Chemical Vapour Deposition, IN General 5

B08B - Cleaning IN GENERAL; Prevention OF Fouling IN General 4

C23G - Cleaning OR De-greasing OF Metallic Material BY Chemical Methods Other Than Electrolysis 4

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 2

C22C - Alloys 1

G01J - Measurement OF Intensity, Velocity, Spectral Content, Polarisation, Phase OR Pulse Characteristics OF Infrared, Visible OR Ultraviolet LIGHT; COLORIMETRY; Radiation Pyrometry 1

B30B - Presses IN General 1

B22F - Working Metallic POWDER; Manufacture OF Articles From Metallic POWDER; Making Metallic Powder ; Apparatus OR Devices Specially Adapted FOR Metallic Powder 1

F26B - Drying Solid Materials OR Objects BY Removing Liquid Therefrom 1

Y02P - Climate Change Mitigation Technologies IN THE Production OR Processing OF Goods 1

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 1

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 1

Top 15 of 19 technology areas

Where it ranks

Overall rank by patents

#13,478

of 49,997 tracked assignees

Innovation Score

33.2 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

What to do with this data

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

IHI Machinery AND Furnace Co., Ltd.'s lead technology class is F27D (Details OR Accessories OF Furnaces, Kilns, Ovens OR Retorts, IN SO FAR AS They ARE OF Kinds Occurring IN More Than ONE Kind OF Furnace), 63.6% of its portfolio - see every assignee active in that class. Explore F27D
Ranked #13,478 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare IHI Machinery AND Furnace Co., Ltd. against Humane, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 33.2/100 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.