USPTO 2015–2025 USPTO PatentsView Foreign Corporation

JX Nippon Mining & Metals Corporation

USPTO PatentsView assignee record - 350 granted patents across 77 technology areas, active 2015–2023. Filing-trend and competitive-moat analysis cross-referenced to USPTO Patent Public Search. Primary class: 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 EVAP).

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

Explore the portfolio See the ranking

350

Total patents granted

CPC technology areas

11.5

Avg claims per patent

-49%

5-year filing velocity

The verdict

JX holds 350 US patents across 77 technology areas, rank #1,216 of 50,000 tracked assignees.

#1,216
of 50,000 US assignees by volume: Top 8%
by Innovation Score (54.3/100): 11.5
avg claims per patent: -49%
filing velocity, last 5 yrs

Portfolio overview

JX Nippon Mining & Metals Corporation has been granted 350 US utility patents between 2015 and 2023, placing JX Nippon Mining & Metals Corporation at rank #1,216 across all assignees tracked by PlainPatent. This portfolio spans 77 distinct Cooperative Patent Classification (CPC) subclasses, averaging 11.5 claims per patent with primary concentration in 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 EVAP). As a Foreign Corporation, JX Nippon Mining & Metals Corporation is one of the broader-portfolio assignees in the PatentsView dataset. By volume, JX sits between Codexis, Inc. (350 patents, rank #1,212) and Emerson Electric Co. (349 patents, rank #1,220) - the closest US assignees by grant volume. The composite Innovation Score of 54.3/100 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 118 grants, compared with 232 in the 2015–2019 window, a -49% shift in five-year velocity. A cooling filing rate may reflect portfolio consolidation, shifting priorities, or reduced R&D throughput. 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. JX Nippon Mining & Metals Corporation's 11.5 average claims per patent suggests focused, narrowly drawn claims typical of single-invention filings, while a multi-domain presence across 77 subclasses balances depth with breadth. Combined with portfolio volume, these signals let analysts, investors, and licensing professionals benchmark JX Nippon Mining & Metals Corporation against peers pursuing similar technology classes.

Codexis

350
Gamblit Gaming

350
Ii-vi Delaware

350
JEOL

350
RISO Kagaku

350
JX Nippon Mining… ◀

350
Amdocs Development

349
Deutsche Telekom

349
Emerson Electric

349

What this shows JX holds 350 patents at rank #1,216, shown against the 8 assignees closest to it in grant volume rather than the industry's largest filers.

Companies ranked near JX

By rank, the assignees closest to #1,216 in granted patent volume.

Leaders in C23C (Coating Metallic Material)

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

JX's Innovation Score vs. every tracked assignee

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

54 Top 8% higher than 92% 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 · 2015–2023

Grants by year

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

View data table

JX Nippon Mining & Metals Corporation patent grants by year, 2015–2025
Year	Patents Granted	Share of Period
2015	47	13.4%
2016	44	12.6%
2017	43	12.3%
2018	39	11.1%
2019	59	16.9%
2020	44	12.6%
2021	31	8.9%
2022	27	7.7%
2023	16	4.6%

Which technologies does JX Nippon Mining & Metals Corporation patent most?

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 174

C22C - ALLOYS 152

H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 85

C22F - CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS 75

H05K - PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 64

Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION 59

C25D - PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR 52

Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS 46

B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 45

C22B - PRODUCTION AND REFINING OF METALS ; PRETREATMENT OF RAW MATERIALS 41

Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION 39

H01B - CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES 34

H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 33

H01L - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10 33

B22F - WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER ; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER 32

Top 15 of 77 technology areas

Patent Moat Analysis

Portfolio Volume Moderate

Tech Breadth Multi-domain

Claim Depth Simple

Velocity Declining

Where it ranks

Overall rank by patents

#1,216

Across all tracked assignees

Innovation Score

54.3 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 JX Nippon Mining & Metals Corporation hold?

JX Nippon Mining & Metals Corporation holds 350 US granted patents filed between 2015 and 2023, spanning 77 technology areas.

What is JX Nippon Mining & Metals Corporation's Innovation Score?

JX Nippon Mining & Metals Corporation has an Innovation Score of 54.3 out of 100. This composite metric weighs portfolio volume (40%), filing velocity (20%), technology breadth (25%), and claim depth (15%).

What technology areas does JX Nippon Mining & Metals Corporation focus on?

JX Nippon Mining & Metals Corporation's top technology area is 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) with 174 patents. The company has filed patents in 77 CPC subclasses total.

Is JX Nippon Mining & Metals Corporation's patent filing rate increasing or decreasing?

JX Nippon Mining & Metals Corporation's recent filing velocity is -49% compared to the prior five-year period. Filing activity has slowed relative to earlier years.

What does claim depth mean for JX Nippon Mining & Metals Corporation's patents?

JX Nippon Mining & Metals Corporation's patents average 11.5 claims each. This is relatively simple claim structure, typical for focused inventions.

How is the JX Nippon Mining & Metals 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.

How to use this portfolio

JX's 350 grants land it in the top 8% 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 - JX ranks #1,216 of 50,000. Top 50 holders
Most of this portfolio concentrates in C23C - see who else leads that technology area. C23C 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.