USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Komatsuseiki Kosakusho Co., Ltd

USPTO PatentsView assignee record - 6 granted patents across 9 technology areas, active 2016–2025. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: C21D (MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING).

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

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

15.7

Avg claims per patent

+100%

5-year filing velocity

The verdict

Komatsuseiki holds 6 US patents across 9 technology areas, rank #41,200 of 50,000 tracked assignees.

#41,200
of 50,000 US assignees by volume: Top 79%
by Innovation Score (26.7/100): 15.7
avg claims per patent: +100%
filing velocity, last 5 yrs

Portfolio overview

Komatsuseiki Kosakusho Co., Ltd has been granted 6 US utility patents between 2016 and 2025, placing Komatsuseiki Kosakusho Co., Ltd at rank #41,200 across all assignees tracked by PlainPatent. This portfolio spans 9 distinct Cooperative Patent Classification (CPC) subclasses, averaging 15.7 claims per patent with primary concentration in C21D (MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING). As a Foreign Corporation, Komatsuseiki Kosakusho Co., Ltd is one of the more focused assignees in the PatentsView dataset. By volume, Komatsuseiki sits between Kolbenschmidt Pierburg Innovations Gmbh (6 patents, rank #41,196) and Korea Pneumatic System Co., Ltd. (6 patents, rank #41,204) - the closest US assignees by grant volume. The composite Innovation Score of 26.7/100 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 4 grants, compared with 2 in the 2015–2019 window, a +100% shift in five-year velocity. An acceleration of this magnitude signals aggressive R&D investment and expanding technical ambition. 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. Komatsuseiki Kosakusho Co., Ltd's 15.7 average claims per patent sits within the typical range for solid legal coverage without excessive prosecution cost, while concentration in 9 subclasses points to a focused technical program. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark Komatsuseiki Kosakusho Co., Ltd against peers pursuing similar technology classes.

Kolbenschmidt Pie…

6
KOLO Medical

6
Kolon Global

6
Kolon LIFE Science

6
Kongsberg Maritim…

6
Korea East-west P…

6
Korea Ocean Resea…

6
Korea Pneumatic S…

6
Komatsuseiki Kosa… ◀

6

What this shows Komatsuseiki holds 6 patents at rank #41,200, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Komatsuseiki

By rank, the assignees closest to #41,200 in granted patent volume.

Leaders in C21D (Modifying THE Physical Structure OF Ferrous Metals)

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

Komatsuseiki's Innovation Score vs. every tracked assignee

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

27 Top 79% higher than 21% 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 · 2016–2025

Grants by year

Teal-shaded recent years (2020–present) versus the 2016–2019 baseline. Full figures in the table below.

View data table

Komatsuseiki Kosakusho Co., Ltd patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	16.7%
2019	1	16.7%
2020	2	33.3%
2021	1	16.7%
2025	1	16.7%

Which technologies does Komatsuseiki Kosakusho Co., Ltd patent most?

C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING 4

C22C - ALLOYS 3

G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 2

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

C12N - MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA 1

A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES 1

F02B - INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 1

B21D - WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL 1

F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 1

Top 9 of 9 technology areas

Patent Moat Analysis

Portfolio Volume Light

Tech Breadth Focused

Claim Depth Standard

Velocity Accelerating

Where it ranks

Overall rank by patents

#41,200

Across all 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?

Frequently Asked Questions

How many patents does Komatsuseiki Kosakusho Co., Ltd hold?

Komatsuseiki Kosakusho Co., Ltd holds 6 US granted patents filed between 2016 and 2025, spanning 9 technology areas.

What is Komatsuseiki Kosakusho Co., Ltd's Innovation Score?

Komatsuseiki Kosakusho Co., Ltd has an Innovation Score of 26.7 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Komatsuseiki Kosakusho Co., Ltd focus on?

Komatsuseiki Kosakusho Co., Ltd's top technology area is C21D (MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING) with 4 patents. The company has filed patents in 9 CPC subclasses total.

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

Komatsuseiki Kosakusho Co., Ltd's recent filing velocity is +100% compared to the prior five-year period. This indicates accelerating innovation.

What does claim depth mean for Komatsuseiki Kosakusho Co., Ltd's patents?

Komatsuseiki Kosakusho Co., Ltd's patents average 15.7 claims each. This falls within the standard range, providing solid legal coverage.

How is the Komatsuseiki Kosakusho 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

Komatsuseiki's 6 grants land it in the top 79% 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 - Komatsuseiki ranks #41,200 of 50,000. Top 50 holders
Most of this portfolio concentrates in C21D - see who else leads that technology area. C21D 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.