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

According to USPTO PatentsView (2015–2025 granted utility patents), Isel Co., Ltd. ranks #47,862 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 Isel Co., Ltd. hold?

Isel Co., Ltd. holds 5 US utility patents granted between 2015 and 2020, spanning 10 technology areas.

What is Isel Co., Ltd.'s Innovation Score?

Isel Co., Ltd. has an Innovation Score of 30.3 out of 100 (34th 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 Isel Co., Ltd. focus on?

Isel Co., Ltd.'s top technology area is B01F (Mixing, e.g. Dissolving, Emulsifying OR Dispersing) with 3 patents, ranking #328 of 1,218 assignees active in that subclass. Grants appear in 10 CPC subclasses total.

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

Isel 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 Isel Co., Ltd.'s patents?

Isel Co., Ltd.'s patents average 21.6 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 Isel 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

Isel Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 10 technology areas, recorded in grant years 2015–2020. 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: B01F (Mixing, e.g. Dissolving, Emulsifying OR Dispersing).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Isel ranks #47,862 of 49,997 tracked US assignees by granted-patent volume, with 5 patents across 10 technology areas.

#47,862
of 49,997 US assignees by volume: 34th percentile
by Innovation Score (30.3/100): 21.6
avg claims per patent: -75%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R47862 · Foreign Corporation #47,862 · 5 grants

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

GRANTS-MICRO 5 grants
BOTTOM-DECILE #47,862/49,997
PHOTO-FINISH Iris Tech
CPC-FOCUS B01F · 10 areas
INNOV-THIN 30.3/100
CLAIMS-DENSE 21.6 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -75% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Iris Tech, 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 Isel’s 30.3 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 (20%) Velocity 0.0 pts (0%) Breadth 11.2 pts (37%) Claim depth 13.0 pts (43%)

Qualcomm Incorporated · highest

85
Isel · this assignee

30
3D Lighting… · lowest

7

What this shows Isel's Innovation Score is 30.3/100 (34th 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 Isel?

Each dot is one of Isel’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). Isel’s own 21.6 claims/patent is ABOVE the 17.2 median for these volume peers. More thorough claims than most filers at this scale, not just more of them.

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

Where Isel's grants concentrate

Isel Co., Ltd. is a focused PatentsView assignee: 10 CPC subclasses with 60% of grants classified under B01F (Mixing, e.g. Dissolving, Emulsifying OR Dispersing). By volume, Isel sits between Iris Tech, Inc. and ITI SCOTLAND—SCOTTISH Enterprise.

Iris Tech

5
Iritech

5
Iron Gaming

5
IS Dongseo

5
Isize

5
Isotopx

5
Isra Surface Visi…

5
ITI Scotland—Scot…

5
Isel ◀

5

What this shows Isel holds 5 patents at rank #47,729, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Isel

By rank, the assignees closest to #47,729 in granted patent volume.

Leaders in B01F (Mixing)

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

Isel's Innovation Score vs. every tracked assignee

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

30 34th percentile higher than 34% 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 · 2015–2020

Grants by year

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

View data table

Isel Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	1	20.0%
2017	1	20.0%
2018	1	20.0%
2019	1	20.0%
2020	1	20.0%

Which technologies does Isel Co., Ltd. patent most?

B01F - Mixing, e.g. Dissolving, Emulsifying OR Dispersing 3

Y10T - Technical Subjects Covered BY Former US Classification 3

B23K - Soldering OR UNSOLDERING; WELDING; Cladding OR Plating BY Soldering OR WELDING; Cutting BY Applying Heat Locally, e.g. Flame CUTTING; Working BY Laser Beam 2

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

H05K - Printed CIRCUITS; Casings OR Constructional Details OF Electric APPARATUS; Manufacture OF Assemblages OF Electrical Components 1

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 1

Y02B - Climate Change Mitigation Technologies Related TO Buildings, e.g. Housing, House Appliances OR Related End-user Applications 1

B23P - Metal-working NOT Otherwise Provided FOR; Combined OPERATIONS; Universal Machine Tools 1

F24D - Domestic- OR Space-heating Systems, e.g. Central Heating SYSTEMS; Domestic Hot-water Supply SYSTEMS; Elements OR Components Therefor 1

Top 10 of 10 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

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

Isel Co., Ltd.'s lead technology class is B01F (Mixing, e.g. Dissolving, Emulsifying OR Dispersing), 60% of its portfolio - see every assignee active in that class. Explore B01F
Ranked #47,862 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Isel Co., Ltd. against Iris Tech, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 30.3/100 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.