USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

USPTO PatentsView assignee record - 25 granted patents across 41 technology areas, recorded in grant years 2016–2025. 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: C22C (ALLOYS).

Compiled by PlainPatent · May 15, 2026

Explore the portfolio See the ranking

Total patents granted

CPC technology areas

11.0

Avg claims per patent

-36%

5-year grant velocity

The verdict

According to USPTO PatentsView, Kabushiki ranks #12,070 of 50,000 tracked US assignees by granted-patent volume, with 25 patents across 41 technology areas.

#12,070
of 50,000 US assignees by volume: Top 30%
by Innovation Score (42.7/100): 11.0
avg claims per patent: -36%
grant velocity, last 5 yrs

Portfolio overview

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) has been granted 25 US utility patents between 2016 and 2025, placing Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) at #12,070 of 50,000 across all assignees tracked by PlainPatent. This portfolio spans 41 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.0 claims per patent with primary concentration in C22C (ALLOYS). As a Foreign Corporation, Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) is one of the more focused assignees in the PatentsView dataset. By volume, Kabushiki sits between Klean Kanteen, Inc. (25 patents, rank #12,068) and Knapp Holding Gmbh (25 patents, rank #12,076) - the closest US assignees by grant volume. The composite Innovation Score of 42.7/100 blends portfolio volume, grant velocity, technology breadth, and claim depth into a single comparable measure drawn directly from USPTO PatentsView records.

Grant cadence records the difference between two grant-year windows. Between 2020 and 2024 the company received 7 grants, compared with 11 in the 2015–2019 window, a -36% shift in five-year grant velocity. Both windows cover five complete grant years; the latest PatentsView year is a partial release and is excluded from this comparison, though it still appears in the yearly table and chart below. Grant timing can lag the related application by years, so this comparison does not establish current R&D spending, strategic intent, or a company’s application activity. The Foreign Corporation classification provides context for the assignee record, not a conclusion about its business strategy.

Claim depth and technology breadth describe this aggregate record. Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)'s 11.0 average claims per patent is an average count, not a measure of claim scope, legal strength, enforceability, or design-around risk. The record spans 41 CPC subclasses. Combined with portfolio volume, these figures let readers compare the documented grant records of assignees in similar technology classes.

Klean Kanteen

25
Korea GAS

25
Kumho TIRE

25
KWS SAAT SE

25
Kanto Kagaku

25
Kenvue Brands

25
Kinetix

25
Knapp Holding

25
Kobe Seiko Sho (K… ◀

25

What this shows Kabushiki holds 25 patents at rank #12,072, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Kabushiki

By rank, the assignees closest to #12,072 in granted patent volume.

Leaders in C22C (Alloys)

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

Kabushiki's Innovation Score vs. every tracked assignee

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

43 Top 30% higher than 70% 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

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2016	1	4.0%
2017	4	16.0%
2018	1	4.0%
2019	5	20.0%
2020	3	12.0%
2021	1	4.0%
2022	2	8.0%
2024	1	4.0%
2025partial year	7	28.0%

Which technologies does Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) patent most?

C22C - ALLOYS 7

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 5

C23C - COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 4

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

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 3

F01K - STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES 3

B21D - WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL 3

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 3

B22F - WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER ; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER 2

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 2

F17C - VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES 2

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 2

B25J - MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES 2

H01F - MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 1

F04C - ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS ; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS 1

Top 15 of 41 technology areas

Grant record at a glance

Portfolio Volume 25 grants

CPC subclasses 41

Avg. claims / grant 11.0

Velocity -36%

Historical grant data only; it does not rate legal strength or current strategy.

Where it ranks

Overall rank by patents

#12,070

of 50,000 tracked assignees

Innovation Score

42.7 out of 100

View all rankings →

Data Source

USPTO PatentsView, US granted patents 2015–2025

How is Innovation Score calculated?

Frequently Asked Questions

Where does Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) ranks #12,070 of 50,000 assignees by granted-patent volume, the same sort as the companies listing and top-holders ranking. See /methodology/#corpus-placement.

How many patents does Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) hold?

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) holds 25 US utility patents granted between 2016 and 2025, spanning 41 technology areas.

What is Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)'s Innovation Score?

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) has an Innovation Score of 42.7 out of 100 (top 30% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) focus on?

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)'s top technology area is C22C (ALLOYS) with 7 patents. Grants appear in 41 CPC subclasses total.

Is Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)'s patent grant rate increasing or decreasing?

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)'s recent grant velocity is -36% 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 Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)'s patents?

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)'s patents average 11.0 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 Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, 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

Kabushiki's 25 grants land it in the top 30% 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 - Kabushiki ranks #12,070 of 50,000. Top 50 holders
Most of this portfolio concentrates in C22C - see who else leads that technology area. C22C 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.

Cite this page

PlainPatent, “Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) Patent Portfolio.” Compiled from the underlying federal/official data source; data as of 2015–2025. https://plainpatent.com/company/kabushiki-kaisha-kobe-seiko-sho-kobe-steel-ltd/

Formal citation formats (APA / MLA)

APA: PlainPatent. (2015). Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) Patent Portfolio. Retrieved August 21, 2026, from https://plainpatent.com/company/kabushiki-kaisha-kobe-seiko-sho-kobe-steel-ltd/

MLA: "Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.) Patent Portfolio." PlainPatent, 2015, https://plainpatent.com/company/kabushiki-kaisha-kobe-seiko-sho-kobe-steel-ltd/.

You are welcome to quote these figures with attribution to PlainPatent and the underlying source. The URL above is stable. See our Terms of Use for what reuse is permitted.

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.