Where does Nippon Steel & Sumikin Materials Co., Ltd. rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nippon Steel & Sumikin Materials Co., Ltd. ranks #9,336 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 Nippon Steel & Sumikin Materials Co., Ltd. hold?

Nippon Steel & Sumikin Materials Co., Ltd. holds 34 US utility patents granted between 2015 and 2019, spanning 44 technology areas.

What is Nippon Steel & Sumikin Materials Co., Ltd.'s Innovation Score?

Nippon Steel & Sumikin Materials Co., Ltd. has an Innovation Score of 41.7 out of 100 (top 33% of the corpus). This composite metric weighs portfolio volume (40%), grant velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does Nippon Steel & Sumikin Materials Co., Ltd. focus on?

Nippon Steel & Sumikin Materials Co., Ltd.'s top technology area is C22C (Alloys) with 19 patents, ranking #91 of 948 assignees active in that subclass. Grants appear in 44 CPC subclasses total.

Is Nippon Steel & Sumikin Materials Co., Ltd.'s patent grant rate increasing or decreasing?

Nippon Steel & Sumikin Materials Co., Ltd.'s recent grant velocity is -100% 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 Nippon Steel & Sumikin Materials Co., Ltd.'s patents?

Nippon Steel & Sumikin Materials Co., Ltd.'s patents average 9.9 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 Nippon Steel & Sumikin Materials 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

Nippon Steel & Sumikin Materials Co., Ltd.

USPTO PatentsView assignee record - 34 granted patents across 44 technology areas, recorded in grant years 2015–2019. 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

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The verdict

According to USPTO PatentsView, Nippon ranks #9,336 of 49,997 tracked US assignees by granted-patent volume, with 34 patents across 44 technology areas.

#9,336
of 49,997 US assignees by volume: Top 33%
by Innovation Score (41.7/100): 9.9
avg claims per patent: -100%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R9336 · Foreign Corporation #9,336 · 34 grants

GRANTS-SMALL · UPPER-Q · PHOTO-FINISH · CPC-WIDE · INNOV-PAR · CLAIMS-PAR · TYPE-FRNCORP · VEL-DROP · BOOK-FULL

GRANTS-SMALL 34 grants
UPPER-Q #9,336/49,997
PHOTO-FINISH Nauto
CPC-WIDE C22C · 44 areas
INNOV-PAR 41.7/100
CLAIMS-PAR 9.9 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -100% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Nauto, Inc. (±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 Nippon’s 41.7 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 12.3 pts (29%) Velocity 0.0 pts (0%) Breadth 23.5 pts (56%) Claim depth 5.9 pts (14%)

Qualcomm Incorporated · highest

85
Ampleon Netherlands… · near

42
Intent IQ · near

42
Micro-epsilon-messte… · near

42
Nippon Steel &… · this assignee

42
ThermoLife Internati… · near

42
3D Lighting… · lowest

7

What this shows Nippon's Innovation Score is 41.7/100 (top 33% 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 Nippon?

Each dot is one of Nippon’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). Nippon’s own 9.9 claims/patent is at or below the 14.7 median for these volume peers. Volume here does not track with deeper claims; several lower-volume peers claim more thoroughly per patent.

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

Where Nippon's grants concentrate

Nippon Steel & Sumikin Materials Co., Ltd. is a focused PatentsView assignee: 44 CPC subclasses with 55.9% of grants classified under C22C (Alloys). Peak complete grant year is 2018 (10 grants) versus a trough of 4 in 2016. By volume, Nippon sits between Nextremity Solutions, Inc. and Nordex Energy SE & Co. KG.

Nextremity Soluti…

34
Nidec GPM

34
Nidec Seimitsu

34
Niigata University

34
NL Giken Incorpor…

34
Nauto

34
Neuronetics

34
Nordex Energy SE…

34
Nippon Steel & Su… ◀

34

What this shows Nippon holds 34 patents at rank #9,334, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near Nippon

By rank, the assignees closest to #9,334 in granted patent volume.

Leaders in C22C (Alloys)

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

Assignees with similar portfolio profiles

Two PlainPatent-derived peer sets for Nippon, neither rank-band nor same-CPC leaders (those blocks stay above). In C22C (Alloys), Nippon ranks #91 of 948 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (42 here).

Intent IQ, LLC 42 ThermoLife International, LLC 42 Micro-epsilon-messtechnik GMBH & Co. KG 42 Ampleon Netherlands B.V. 42

Nippon's Innovation Score vs. every tracked assignee

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

42 Top 33% higher than 67% 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 · 2015–2019

Grants by year

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

View data table

Nippon Steel & Sumikin Materials Co., Ltd. patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	6	17.6%
2016	4	11.8%
2017	8	23.5%
2018	10	29.4%
2019	6	17.6%

Which technologies does Nippon Steel & Sumikin Materials Co., Ltd. patent most?

C22C - Alloys 19

H01L - Semiconductor Devices NOT Covered BY Class H10 15

Y10T - Technical Subjects Covered BY Former US Classification 13

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 12

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 10

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 9

C25D - Processes FOR THE Electrolytic OR Electrophoretic Production OF COATINGS; ELECTROFORMING; Apparatus Therefor 8

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 8

H01M - Processes OR Means, e.g. Batteries, FOR THE Direct Conversion OF Chemical Energy Into Electrical Energy 7

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 6

C22F - Changing THE Physical Structure OF Non-ferrous Metals AND Non-ferrous Alloys 6

B21B - Rolling OF Metal 5

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 3

C08G - Macromolecular Compounds Obtained Otherwise Than BY Reactions Only Involving Unsaturated Carbon-to-carbon Bonds 3

C09J - ADHESIVES; Non-mechanical Aspects OF Adhesive Processes IN GENERAL; Adhesive Processes NOT Provided FOR ELSEWHERE; USE OF Materials AS Adhesives 3

Top 15 of 44 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

Nippon Steel & Sumikin Materials Co., Ltd.'s patent record in context - here's where to go next.

Nippon Steel & Sumikin Materials Co., Ltd.'s lead technology class is C22C (Alloys), 55.9% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #9,336 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nippon Steel & Sumikin Materials Co., Ltd. against Nextremity Solutions, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 41.7/100 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.