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

According to USPTO PatentsView (2015–2025 granted utility patents), Kofulso Co., Ltd ranks #26,689 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 Kofulso Co., Ltd hold?

Kofulso Co., Ltd holds 10 US utility patents granted between 2015 and 2025, spanning 12 technology areas.

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

Kofulso Co., Ltd has an Innovation Score of 42.4 out of 100 (top 31% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kofulso Co., Ltd focus on?

Kofulso Co., Ltd's top technology area is A62C (Fire-fighting) with 4 patents, ranking #85 of 253 assignees active in that subclass. Grants appear in 12 CPC subclasses total.

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

Kofulso Co., Ltd's recent grant velocity is -20% 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 Kofulso Co., Ltd's patents?

Kofulso Co., Ltd's patents average 3.1 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 Kofulso 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

Kofulso Co., Ltd

USPTO PatentsView assignee record - 10 granted patents across 12 technology areas, recorded in grant years 2015–2025. 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: A62C (Fire-fighting).

Compiled by PlainPatent · May 15, 2026

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Explore the portfolio See the ranking

The verdict

According to USPTO PatentsView, Kofulso ranks #26,689 of 49,997 tracked US assignees by granted-patent volume, with 10 patents across 12 technology areas.

#26,689
of 49,997 US assignees by volume: Top 31%
by Innovation Score (42.4/100): 3.1
avg claims per patent: -20%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R26689 · Foreign Corporation #26,689 · 10 grants

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

GRANTS-MICRO 10 grants
MID-PACK #26,689/49,997
PHOTO-FINISH Kmew
CPC-FOCUS A62C · 12 areas
INNOV-PAR 42.4/100
CLAIMS-SPARSE 3.1 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DOWN -20% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Kmew 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.

How Kofulso’s 42.4 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 8.3 pts (20%) Velocity 20.0 pts (47%) Breadth 12.2 pts (29%) Claim depth 1.9 pts (4%)

Qualcomm Incorporated · highest

85
Kofulso · this assignee

42
3D Lighting… · lowest

7

What this shows Kofulso's Innovation Score is 42.4/100 (top 31% 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 Kofulso?

Each dot is one of Kofulso’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). Kofulso’s own 3.1 claims/patent is at or below the 10.6 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Kofulso's grants concentrate

Kofulso Co., Ltd is a focused PatentsView assignee: 12 CPC subclasses with 40% of grants classified under A62C (Fire-fighting). Peak complete grant year is 2015 (3 grants) versus a trough of 1 in 2024. By volume, Kofulso sits between Kmew Co., Ltd. and Korens Co., Ltd..

Kofulso's three-year grant acceleration

Kofulso Co., Ltd shows 4 grants in 2022–2024 against only 0 in 2019–2021. That prior window is too thin for a growth multiple (rename and spin-out assignees look artificially high when the baseline is near zero), so PlainPatent withholds a ranked acceleration claim here.

Kmew

10
Knowmadics

10
Kobayashi &

10
Kofax Internation…

10
Koppers Delaware

10
Korea Institute O…

10
Korea Western Pow…

10
Korens

10
Kofulso ◀

10

What this shows Kofulso holds 10 patents at rank #26,670, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kofulso

By rank, the assignees closest to #26,670 in granted patent volume.

Leaders in A62C (Fire-fighting)

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

Kofulso's Innovation Score vs. every tracked assignee

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

42 Top 31% higher than 69% 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 · 2015–2025

Grants by year

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

View data table

Kofulso Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	3	30.0%
2016	2	20.0%
2023	3	30.0%
2024	1	10.0%
2025partial year	1	10.0%

Which technologies does Kofulso Co., Ltd patent most?

A62C - Fire-fighting 4

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 4

F16K - VALVES; TAPS; COCKS; ACTUATING-FLOATS; Devices FOR Venting OR Aerating 2

Y10T - Technical Subjects Covered BY Former US Classification 2

F16B - Devices FOR Fastening OR Securing Constructional Elements OR Machine Parts Together, e.g. Nails, Bolts, Circlips, Clamps, Clips OR WEDGES; Joints OR Jointing 2

E04B - General Building CONSTRUCTIONS; Walls, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; Insulation OR Other Protection OF Buildings 1

B21D - Working OR Processing OF Sheet Metal OR Metal Tubes, Rods OR Profiles Without Essentially Removing MATERIAL; Punching Metal 1

F24H - Fluid Heaters, e.g. Water OR AIR Heaters, Having Heat-generating Means, e.g. Heat Pumps, IN General 1

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

F28G - Cleaning OF Internal OR External Surfaces OF Heat-exchange OR Heat-transfer Conduits, e.g. Water Tubes OR Boilers 1

F16M - Frames, Casings OR Beds OF Engines, Machines OR Apparatus, NOT Specific TO Engines, Machines OR Apparatus Provided FOR ELSEWHERE; STANDS; Supports 1

G09F - DISPLAYING; ADVERTISING; SIGNS; Labels OR NAME-PLATES; Seals 1

Top 12 of 12 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

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

Kofulso Co., Ltd's lead technology class is A62C (Fire-fighting), 40% of its portfolio - see every assignee active in that class. Explore A62C
Ranked #26,689 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Kofulso Co., Ltd against Kmew Co., Ltd., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 42.4/100 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.