USPTO 2015–2025 USPTO PatentsView Foreign Corporation

ISEL Co., Ltd.

USPTO PatentsView assignee record - 5 granted patents across 10 technology areas, active 2015–2020. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: B01F (MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING).

Compiled byPlainPatent Editorial, US Patent Intelligence Editorial Team · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

21.6

Avg claims per patent

-75%

5-year filing velocity

The verdict

ISEL holds 5 US patents across 10 technology areas, rank #47,729 of 50,000 tracked assignees.

#47,729
of 50,000 US assignees by volume: Top 66%
by Innovation Score (30.3/100): 21.6
avg claims per patent: -75%
filing velocity, last 5 yrs

Portfolio overview

ISEL Co., Ltd. has been granted 5 US utility patents between 2015 and 2020, placing ISEL Co., Ltd. at rank #47,729 across all assignees tracked by PlainPatent. This portfolio spans 10 distinct Cooperative Patent Classification (CPC) subclasses, averaging 21.6 claims per patent with primary concentration in B01F (MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING). As a Foreign Corporation, ISEL Co., Ltd. is one of the more focused assignees in the PatentsView dataset. By volume, ISEL sits between IRIS TECH, Inc. (5 patents, rank #47,725) and ITI Scotland—scottish Enterprise (5 patents, rank #47,733) - the closest US assignees by grant volume. The composite Innovation Score of 30.3/100 blends portfolio volume, filing velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Filing cadence tells the strategic story. Between 2020 and 2025 the company received 1 grants, compared with 4 in the 2015–2019 window, a -75% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. The Foreign Corporation classification further shapes interpretation, since corporate, government, and individual filers pursue patents for materially different reasons.

Claim depth and technology breadth together indicate competitive posture. ISEL Co., Ltd.'s 21.6 average claims per patent reflects complex, broadly scoped inventions that are difficult for competitors to design around, while concentration in 10 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark ISEL Co., Ltd. against peers pursuing similar technology classes.

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

30 Top 66% higher than 34% of 50,000 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

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Complex

Velocity Declining

Where it ranks

Overall rank by patents

#47,729

Across all tracked assignees

Innovation Score

30.3 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

How many patents does ISEL Co., Ltd. hold?

ISEL Co., Ltd. holds 5 US granted patents filed 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. This composite metric weighs portfolio volume (40%), filing 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. The company has filed patents in 10 CPC subclasses total.

Is ISEL Co., Ltd.'s patent filing rate increasing or decreasing?

ISEL Co., Ltd.'s recent filing velocity is -75% compared to the prior five-year period. Filing 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 indicates complex, broadly scoped patents that are harder for competitors to design around.

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.

How to use this portfolio

ISEL's 5 grants land it in the top 66% by Innovation Score, but volume alone doesn't tell you where the strength sits.

Read that count against the largest US assignees before treating it as dominance - ISEL ranks #47,729 of 50,000. Top 50 holders
Most of this portfolio concentrates in B01F - see who else leads that technology area. B01F leaders
Check what the four-part Innovation Score actually rewards before comparing it to another company. How the score works

Patent counts and the Innovation Score measure patenting activity, not commercial success or the legal strength of any patent. Many patents are filed defensively. Verify the status of an individual patent against official USPTO records.

Data sourced from USPTO PatentsView - official U.S. government patent data. See our methodology for computation details. Retrieved and formatted by PlainPatent Editorial

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 byPlainPatent Editorial, US Patent Intelligence Editorial Team · 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.