Where does Iljin Electric Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Iljin Electric Co., Ltd. ranks #29,050 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 Iljin Electric Co., Ltd. hold?

Iljin Electric Co., Ltd. holds 9 US utility patents granted between 2017 and 2021, spanning 7 technology areas.

What is Iljin Electric Co., Ltd.'s Innovation Score?

Iljin Electric Co., Ltd. has an Innovation Score of 23.8 out of 100 (13th percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

Is Iljin Electric Co., Ltd.'s patent grant rate increasing or decreasing?

Iljin Electric Co., Ltd.'s recent grant velocity is +100% compared to the prior five-year period (grant years, not application filing dates). This indicates accelerating grant output.

What does claim depth mean for Iljin Electric Co., Ltd.'s patents?

Iljin Electric Co., Ltd.'s patents average 10.9 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 Iljin Electric 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

Iljin Electric Co., Ltd.

Q: What technology areas does Iljin Electric Co., Ltd. focus on?

Iljin Electric Co., Ltd.'s top technology area is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy) with 7 patents. Grants appear in 7 CPC subclasses total.

USPTO PatentsView assignee record - 9 granted patents across 7 technology areas, recorded in grant years 2017–2021. 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: H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Iljin ranks #29,050 of 49,997 tracked US assignees by granted-patent volume, with 9 patents across 7 technology areas.

#29,050
of 49,997 US assignees by volume: 13th percentile
by Innovation Score (23.8/100): 10.9
avg claims per patent: +100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R29050 · Foreign Corporation #29,050 · 9 grants

GRANTS-MICRO · MID-PACK · PHOTO-FINISH · CPC-NARROW · INNOV-THIN · CLAIMS-PAR · TYPE-FRNCORP · VEL-SURGE · BOOK-FULL

GRANTS-MICRO 9 grants
MID-PACK #29,050/49,997
PHOTO-FINISH Ifco Systems
CPC-NARROW H01M · 7 areas
INNOV-THIN 23.8/100
CLAIMS-PAR 10.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-SURGE +100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Ifco Systems 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.

Qualcomm Incorporated · highest

85
Iljin Electric · this assignee

24
3D Lighting… · lowest

7

What this shows Iljin's Innovation Score is 23.8/100 (13th 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 Iljin's grants concentrate

Iljin Electric Co., Ltd. is a focused PatentsView assignee: 7 CPC subclasses with 77.8% of grants classified under H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy). Peak complete grant year is 2020 (4 grants) versus a trough of 1 in 2017. By volume, Iljin sits between Ifco Systems GMBH and Immuneonco Biopharmaceuticals (SHANGHAI) Inc..

Ifco Systems

9
IGM Resins Italia…

9
Ihara Science

9
Ii-vi Advanced Ma…

9
Imaginalis S R L

9
IMBA—Institut FÜR…

9
Imedicom

9
Immuneonco Biopha…

9
Iljin Electric ◀

9

What this shows Iljin holds 9 patents at rank #29,033, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Iljin

By rank, the assignees closest to #29,033 in granted patent volume.

Leaders in H01M (Processes OR Means)

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

Iljin's Innovation Score vs. every tracked assignee

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

24 13th percentile higher than 13% 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 · 2017–2021

Grants by year

Teal-shaded recent years (2020–present) versus the 2017–2019 baseline. Full figures in the table below.

View data table

Iljin Electric Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	11.1%
2019	2	22.2%
2020	4	44.4%
2021	2	22.2%

Which technologies does Iljin Electric Co., Ltd. patent most?

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 7

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 7

C22C - Alloys 2

B22D - Casting OF METALS; Casting OF Other Substances BY THE Same Processes OR Devices 2

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

C01B - Non-metallic ELEMENTS; Compounds THEREOF; ; Metalloids OR Compounds Thereof NOT Covered BY Subclass C01c 1

C01P - Indexing Scheme Relating TO Structural AND Physical Aspects OF Solid Inorganic Compounds 1

Top 7 of 7 technology areas

Where it ranks

Overall rank by patents

#29,050

of 49,997 tracked assignees

Innovation Score

23.8 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

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

Iljin Electric Co., Ltd.'s lead technology class is H01M (Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy), 77.8% of its portfolio - see every assignee active in that class. Explore H01M
Ranked #29,050 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Iljin Electric Co., Ltd. against Ifco Systems GMBH, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 23.8/100 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.