Where does Nippon Steel & Sumikin Stainless Steel Corporation rank among US patent assignees?

According to USPTO PatentsView (2015–2025 granted utility patents), Nippon Steel & Sumikin Stainless Steel Corporation ranks #7,745 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 Stainless Steel Corporation hold?

Nippon Steel & Sumikin Stainless Steel Corporation holds 42 US utility patents granted between 2015 and 2021, spanning 34 technology areas.

What is Nippon Steel & Sumikin Stainless Steel Corporation's Innovation Score?

Nippon Steel & Sumikin Stainless Steel Corporation has an Innovation Score of 39.8 out of 100 (top 37% 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 Stainless Steel Corporation focus on?

Nippon Steel & Sumikin Stainless Steel Corporation's top technology area is C22C (Alloys) with 40 patents, ranking #40 of 948 assignees active in that subclass. Grants appear in 34 CPC subclasses total.

Is Nippon Steel & Sumikin Stainless Steel Corporation's patent grant rate increasing or decreasing?

Nippon Steel & Sumikin Stainless Steel Corporation's recent grant velocity is -73% 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 Stainless Steel Corporation's patents?

Nippon Steel & Sumikin Stainless Steel Corporation's patents average 10.2 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.

USPTO 2015–2025 USPTO PatentsView Foreign Corporation

Nippon Steel & Sumikin Stainless Steel Corporation

Q: How is the Nippon Steel & Sumikin Stainless Steel Corporation 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 PatentsView assignee record - 42 granted patents across 34 technology areas, recorded in grant years 2015–2021. 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: C22C (Alloys).

Compiled by PlainPatent · May 15, 2026

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The verdict

According to USPTO PatentsView, Nippon ranks #7,745 of 49,997 tracked US assignees by granted-patent volume, with 42 patents across 34 technology areas.

#7,745
of 49,997 US assignees by volume: Top 37%
by Innovation Score (39.8/100): 10.2
avg claims per patent: -73%
grant velocity, last 5 yrs

USPTO PatentsView assignee plate

Corpus R7745 · Foreign Corporation #7,745 · 42 grants

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

GRANTS-SMALL 42 grants
UPPER-Q #7,745/49,997
PHOTO-FINISH Modne
CPC-FOCUS C22C · 34 areas
INNOV-THIN 39.8/100
CLAIMS-PAR 10.2 claims/avg
TYPE-FRNCORP Foreign Corp
VEL-DROP -73% vel
BOOK-FULL 10/10 fields

Nearest grant-volume peer: Modne, 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 39.8 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 13.0 pts (33%) Velocity 0.0 pts (0%) Breadth 20.6 pts (52%) Claim depth 6.1 pts (15%)

Qualcomm Incorporated · highest

85
Astute Medical · near

40
Endospan · near

40
Institut Gustave… · near

40
Nippon Steel &… · this assignee

40
Polymer Technology… · near

40
3D Lighting… · lowest

7

What this shows Nippon's Innovation Score is 39.8/100 (top 37% 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 10.2 claims/patent is at or below the 11.3 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 Stainless Steel Corporation is a focused PatentsView assignee: 34 CPC subclasses with 95.2% of grants classified under C22C (Alloys). Peak complete grant year is 2018 (9 grants) versus a trough of 2 in 2021. By volume, Nippon sits between Modne, Inc. and Nogra Pharma Limited.

Modne

42
Morinaga Milk Ind…

42
Mozarc Medical US

42
Nanthealth

42
Nantcell

42
Neutrik

42
Nextivity

42
Nogra Pharma

42
Nippon Steel & Su… ◀

42

What this shows Nippon holds 42 patents at rank #7,742, 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 #7,742 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 #40 of 948 assignees by patent count in that subclass.

Similar innovation score

Nearest assignees by Innovation Score (40 here).

Astute Medical, Inc. 40 Institut Gustave Roussy 40 Polymer Technology Systems, Inc. 40 Endospan Ltd. 40

Nippon's Innovation Score vs. every tracked assignee

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

40 Top 37% higher than 63% 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 · 2015–2021

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 Stainless Steel Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	4	9.5%
2016	7	16.7%
2017	4	9.5%
2018	9	21.4%
2019	9	21.4%
2020	7	16.7%
2021	2	4.8%

Which technologies does Nippon Steel & Sumikin Stainless Steel Corporation patent most?

C22C - Alloys 40

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 37

B21B - Rolling OF Metal 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

F16L - PIPES; Joints OR Fittings FOR PIPES; Supports FOR Pipes, Cables OR Protective TUBING; Means FOR Thermal Insulation IN General 5

F02M - Supplying Combustion Engines IN General With Combustible Mixtures OR Constituents Thereof 4

F28F - Details OF Heat-exchange AND Heat-transfer Apparatus, OF General Application 4

Y10T - Technical Subjects Covered BY Former US Classification 4

F01N - Gas-flow Silencers OR Exhaust Apparatus FOR Machines OR Engines IN GENERAL; Gas-flow Silencers OR Exhaust Apparatus FOR Internal-combustion Engines 4

C25D - Processes FOR THE Electrolytic OR Electrophoretic Production OF COATINGS; ELECTROFORMING; Apparatus Therefor 3

B32B - Layered Products, i.e. Products Built-up OF Strata OF Flat OR Non-flat, e.g. Cellular OR Honeycomb, Form 3

Y02E - Reduction OF Greenhouse GAS [GHG] Emissions, Related TO Energy Generation, Transmission OR Distribution 3

C23F - Non-mechanical Removal OF Metallic Material From Surface ; Inhibiting Corrosion OF Metallic Material OR Incrustation IN GENERAL; Multi-step Processes FOR Surface Treatment OF Metallic Material Involving AT Least ONE Process Provided FOR IN Class C23 AND AT Least ONE Process Covered BY Subclass C21d 2

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 2

C09D - Coating Compositions, e.g. Paints, Varnishes OR LACQUERS; Filling PASTES; Chemical Paint OR INK REMOVERS; INKS; Correcting FLUIDS; WOODSTAINS; Pastes OR Solids FOR Colouring OR PRINTING; USE OF Materials Therefor 2

Top 15 of 34 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 Stainless Steel Corporation's patent record in context - here's where to go next.

Nippon Steel & Sumikin Stainless Steel Corporation's lead technology class is C22C (Alloys), 95.2% of its portfolio - see every assignee active in that class. Explore C22C
Ranked #7,745 of 49,997 tracked assignees by patent volume - see the full leaderboard. See the ranking
Compare Nippon Steel & Sumikin Stainless Steel Corporation against Modne, Inc., an assignee filing at a similar volume. Compare portfolios
Innovation Score of 39.8/100 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.