Where does Iida Denki Kogyo Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Iida Denki Kogyo Co., Ltd. ranks #47,602 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 Iida Denki Kogyo Co., Ltd. hold?

Iida Denki Kogyo Co., Ltd. holds 5 US utility patents granted between 2015 and 2019, spanning 6 technology areas.

What is Iida Denki Kogyo Co., Ltd.'s Innovation Score?

Iida Denki Kogyo Co., Ltd. has an Innovation Score of 17.5 out of 100 (4th 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 Iida Denki Kogyo Co., Ltd. focus on?

Iida Denki Kogyo Co., Ltd.'s top technology area is F02D (Controlling Combustion Engines) with 5 patents, ranking #184 of 518 assignees active in that subclass. Grants appear in 6 CPC subclasses total.

Is Iida Denki Kogyo Co., Ltd.'s patent grant rate increasing or decreasing?

Iida Denki Kogyo Co., Ltd.'s recent grant velocity is -100% 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 Iida Denki Kogyo Co., Ltd.'s patents?

Iida Denki Kogyo Co., Ltd.'s patents average 4.4 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 Iida Denki Kogyo 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

Iida Denki Kogyo Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 6 technology areas, recorded in grant years 2015–2019. 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: F02D (Controlling Combustion Engines).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Iida ranks #47,602 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 6 technology areas.

#47,602
of 49,997 US assignees by volume: 4th percentile
by Innovation Score (17.5/100): 4.4
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R47602 · Foreign Corporation #47,602 · 5 grants

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

GRANTS-MICRO 5 grants
BOTTOM-DECILE #47,602/49,997
PHOTO-FINISH IGL Pharma
CPC-NARROW F02D · 6 areas
INNOV-LOW 17.5/100
CLAIMS-SPARSE 4.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: IGL Pharma 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.

How Iida’s 17.5 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 (35%) Velocity 0.0 pts (0%) Breadth 8.7 pts (50%) Claim depth 2.6 pts (15%)

Qualcomm Incorporated · highest

85
Iida Denki Kogyo · this assignee

17
3D Lighting… · lowest

7

What this shows Iida's Innovation Score is 17.5/100 (4th 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 Iida?

Each dot is one of Iida’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). Iida’s own 4.4 claims/patent is at or below the 8.8 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Iida's grants concentrate

Iida Denki Kogyo Co., Ltd. is a focused PatentsView assignee: 6 CPC subclasses with 100% of grants classified under F02D (Controlling Combustion Engines). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2018. By volume, Iida sits between IGL Pharma Inc. and Ille Papier-Service GmbH.

IGL Pharma

5
IHI Rotating Mach…

5
IHI Shibaura Mach…

5
Iida

5
Ikoi S P A

5
Il-yang Pharm

5
Ildong Pharm

5
Ille Papier-servi…

5
Iida Denki Kogyo ◀

5

What this shows Iida holds 5 patents at rank #47,600, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Iida

By rank, the assignees closest to #47,600 in granted patent volume.

Leaders in F02D (Controlling Combustion Engines)

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

Iida's Innovation Score vs. every tracked assignee

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

17 4th percentile higher than 4% 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 · 2015–2019

Grants by year

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

View data table

Iida Denki Kogyo Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	60.0%
2018	1	20.0%
2019	1	20.0%

Which technologies does Iida Denki Kogyo Co., Ltd. patent most?

F02D - Controlling Combustion Engines 5

F02P - Ignition, Other Than Compression Ignition, FOR Internal-combustion ENGINES; Testing OF Ignition Timing IN Compression-ignition Engines 2

Y02T - Climate Change Mitigation Technologies Related TO Transportation 2

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 2

F02B - Internal-combustion Piston ENGINES; Combustion Engines IN General 2

B27B - Saws FOR Wood OR Similar MATERIAL; Components OR Accessories Therefor 1

Top 6 of 6 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

Iida Denki Kogyo Co., Ltd.'s patent record in context - here's where to go next.

Iida Denki Kogyo Co., Ltd.'s lead technology class is F02D (Controlling Combustion Engines), 100% of its portfolio - see every assignee active in that class. Explore F02D
Ranked #47,602 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Iida Denki Kogyo Co., Ltd. against IGL Pharma Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 17.5/100 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.