Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
451 patents granted to the 8 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to ArcelorMittal’s names, not what it holds today.
Patents granted
451
448 utility, 3 reissue, 1976 to Dec 31, 2025
Granted in 2025
83
Against 69 in 2024 and 53 in 2023
Applications published
701
97 of them in 2025
Names they are printed under
8
its own name, a subsidiary
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Materials, metallurgy174
Surface technology, coating60
Machine tools24
Transport17
Thermal processes and apparatus8
Measurement5
Civil engineering4
Electrical machinery, apparatus, energy3
Engines, pumps, turbines3
Basic materials chemistry2
Environmental technology1
Chemical engineering1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name8 counted
ArcelorMittal its own name
named as the applicant on its applications, in LU. 2 more under the same name are not counted (printed in CH, printed in US)
613 publishedArcelorMittal its own name
LU, as the owner printed on each patent. 1 more under the same name are not counted (printed in LI)
29 publishedArcelormittal France a subsidiary
FR, as the owner printed on each patent. 2 more under the same name are not counted (printed in BE)
36 publishedArcelorMittal France a subsidiary
named as the applicant on its applications, in FR
19 publishedArcelorMittal SA its own name
LU, as the owner printed on each patent
2 publishedArcelormittal Belval & Differdange a subsidiary
LU, as the owner printed on each patent
0 publishedARCELORMITTAL POLAND S.A. a subsidiary
named as the applicant on its applications, in PL
1 publishedARCELORMITTAL TEXAS HBI LLC a subsidiary
named as the applicant on its applications, in US
1 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Dec 30, 2025 | 12,510,485 | System and method for determining the chemical composition of liquid metallurgical products | Analysis of biological materials | ArcelorMittal |
| Dec 30, 2025 | 12,509,778 | Method for the manufacture of a coated metallic substrate by laser metal deposition | Machine tools | ArcelorMittal |
| Dec 30, 2025 | 12,509,741 | Cold rolled and annealed steel sheet, method of production thereof and use of such steel to produce vehicle parts | Materials, metallurgy | ArcelorMittal |
| Dec 30, 2025 | 12,509,740 | Hot rolled and steel sheet and a method of manufacturing thereof | Materials, metallurgy | ArcelorMittal |
| Dec 23, 2025 | 12,503,744 | Hot rolled and heat-treated steel sheet and method of manufacturing the same | Materials, metallurgy | ArcelorMittal |
| Dec 23, 2025 | 12,503,740 | Cold rolled and double annealed steel sheet | Materials, metallurgy | ArcelorMittal |
| Dec 23, 2025 | 12,503,739 | Method for manufacturing a high strength steel product and steel product thereby obtained | Materials, metallurgy | ArcelorMittal |
| Dec 16, 2025 | 12,497,680 | Edge build-up measurement | Surface technology, coating | ArcelorMittal |
| Dec 16, 2025 | 12,497,678 | Annealing method | Materials, metallurgy | ArcelorMittal |
| Dec 2, 2025 | 12,486,551 | Cold rolled and heat-treated steel sheet and method of manufacturing the same | Materials, metallurgy | ArcelorMittal |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Dec 25, 2025 | 2025/0389002 | NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF | Materials, metallurgy | ArcelorMittal |
| Dec 25, 2025 | 2025/0388985 | A method for manufacturing pig iron in an electrical smelting furnace and associated electrical smelting furnace | Materials, metallurgy | ArcelorMittal |
| Dec 25, 2025 | 2025/0388271 | Automotive vehicle with press hardened visible steel parts | Materials, metallurgy | ArcelorMittal |
| Dec 18, 2025 | 2025/0382680 | Steel part having high strength and high bendability | Materials, metallurgy | ArcelorMittal |
| Dec 18, 2025 | 2025/0382679 | Steel part having high strength and high bendability | Materials, metallurgy | ArcelorMittal |
| Dec 11, 2025 | 2025/0375804 | DEVICE AND METHOD FOR COOLING ROLLS USED FOR ROLLING IN A HIGHLY TURBULENT ENVIRONMENT | Machine tools | ArcelorMittal |
| Dec 4, 2025 | 2025/0369080 | METHOD OF FORMING LOW-CARBON, HIGH TOUGHNESS, STEEL PLATES FOR RAILROAD TANK CARS | Materials, metallurgy | ArcelorMittal |
| Dec 4, 2025 | 2025/0368264 | Rear Structure for an Electric Vehicle | Materials, metallurgy | ArcelorMittal |
| Nov 27, 2025 | 2025/0361588 | Steel sheet and high strength press hardened steel part having excellent bending anisotropy and method of manufacturing the same | Materials, metallurgy | ArcelorMittal |
| Nov 27, 2025 | 2025/0361576 | DOUBLE COLD ROLLED NON-ORIENTED ELECTRICAL STEEL AND A METHOD OF MANUFACTURING NON-ORIENTED ELECTRICAL STEEL THEREOF | Materials, metallurgy | ArcelorMittal |
What it applied for, 2024 to 2025: Materials, metallurgy 120 · Surface technology, coating 22 · Machine tools 8 · Civil engineering 7 · Transport 4 · Measurement 4.
A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.