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

According to USPTO PatentsView (2015–2025 granted utility patents), Korens Co., Ltd. ranks #26,698 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 Korens Co., Ltd. hold?

Korens Co., Ltd. holds 10 US utility patents granted between 2017 and 2021, spanning 17 technology areas.

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

Korens Co., Ltd. has an Innovation Score of 26.7 out of 100 (21st percentile of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

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

Korens Co., Ltd.'s recent grant velocity is -57% 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 Korens Co., Ltd.'s patents?

Korens Co., Ltd.'s patents average 6.4 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 Korens 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

Korens Co., Ltd.

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

Korens Co., Ltd.'s top technology area is F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact) with 7 patents. Grants appear in 17 CPC subclasses total.

USPTO PatentsView assignee record - 10 granted patents across 17 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: F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Korens ranks #26,698 of 49,997 tracked US assignees by granted-patent volume, with 10 patents across 17 technology areas.

#26,698
of 49,997 US assignees by volume: 21st percentile
by Innovation Score (26.7/100): 6.4
avg claims per patent: -57%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R26698 · Foreign Corporation #26,698 · 10 grants

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

GRANTS-MICRO 10 grants
MID-PACK #26,698/49,997
PHOTO-FINISH Kofulso
CPC-FOCUS F28D · 17 areas
INNOV-THIN 26.7/100
CLAIMS-SPARSE 6.4 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -57% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kofulso Co., Ltd (±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
Korens · this assignee

27
3D Lighting… · lowest

7

What this shows Korens's Innovation Score is 26.7/100 (21st 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 Korens's grants concentrate

Korens Co., Ltd. is a focused PatentsView assignee: 17 CPC subclasses with 70% of grants classified under F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact). Peak complete grant year is 2018 (4 grants) versus a trough of 1 in 2017. By volume, Korens sits between Kofulso Co., Ltd and Kristl, Seibt & Co. Gesellschaft M.B.H..

Kofulso

10
Koppers Delaware

10
Korea Institute O…

10
Korea Western Pow…

10
Korg

10
Kotobuki Pharmace…

10
Kriss Industries…

10
Kristl Seibt & Ge…

10
Korens ◀

10

What this shows Korens holds 10 patents at rank #26,674, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Korens

By rank, the assignees closest to #26,674 in granted patent volume.

Leaders in F28D (Heat-exchange Apparatus)

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

Korens's Innovation Score vs. every tracked assignee

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

27 21st percentile higher than 21% 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

Korens Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2017	1	10.0%
2018	4	40.0%
2019	2	20.0%
2020	2	20.0%
2021	1	10.0%

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

F28D - Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact 7

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 7

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 7

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 3

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 3

F16H - Gearing 2

F02D - Controlling Combustion Engines 2

F01M - Lubricating OF Machines OR Engines IN GENERAL; Lubricating Internal Combustion ENGINES; Crankcase Ventilating 1

C22C - Alloys 1

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

B21C - Manufacture OF Metal Sheets, Wire, Rods, Tubes, Profiles OR Like Semi-manufactured Products Otherwise Than BY ROLLING; Auxiliary Operations Used IN Connection With Metal-working Without Essentially Removing Material 1

G01R - Measuring Electric VARIABLES; Measuring Magnetic Variables 1

G01D - Measuring NOT Specially Adapted FOR A Specific VARIABLE; Arrangements FOR Measuring TWO OR More Variables NOT Covered IN A Single Other SUBCLASS; Tariff Metering APPARATUS; Measuring OR Testing NOT Otherwise Provided FOR 1

F01P - Cooling OF Machines OR Engines IN GENERAL; Cooling OF Internal-combustion Engines 1

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 1

Top 15 of 17 technology areas

Where it ranks

Overall rank by patents

#26,698

of 49,997 tracked assignees

Innovation Score

26.7 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

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

Korens Co., Ltd.'s lead technology class is F28D (Heat-exchange Apparatus, NOT Provided FOR IN Another Subclass, IN Which THE Heat-exchange Media DO NOT Come Into Direct Contact), 70% of its portfolio - see every assignee active in that class. Explore F28D
Ranked #26,698 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Korens Co., Ltd. against Kofulso Co., Ltd, an assignee filing at a similar volume. Compare portfolios
Innovation Score of 26.7/100 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.