Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
952 patents granted to the 4 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 POSCO Holdings Inc.’s names, not what it holds today.
Patents granted
952
951 utility, 1 design, 1976 to Dec 31, 2025
Granted in 2025
132
Against 87 in 2024 and 100 in 2023
Applications published
1,577
122 of them in 2025
Names they are printed under
4
a former name, its own name
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, metallurgy320
Surface technology, coating82
Machine tools23
Electrical machinery, apparatus, energy15
Basic materials chemistry11
Thermal processes and apparatus5
Measurement4
Semiconductors3
Chemical engineering3
Transport3
Macromolecular chemistry, polymers2
Mechanical elements1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name4 counted
POSCO CO., LTD a former name
KR, as the owner printed on each patent. 1 more under the same name are not counted (printed in FR)
798 publishedPOSCO a former name
named as the applicant on its applications, in KR. 1 more under the same name are not counted (printed in JP)
777 publishedPohang Iron & Steel Co. Ltd. a former name
KR, as the owner printed on each patent
1 publishedPOSCO Holdings Inc. its own name
named as the applicant on its applications, in KR
1 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Dec 30, 2025 | 12,509,751 | High strength steel sheet having excellent workability and method for manufacturing same | Materials, metallurgy | POSCO CO., LTD |
| Dec 30, 2025 | 12,509,742 | Ultra-high strength steel sheet having excellent shear workability and method for manufacturing same | Materials, metallurgy | POSCO CO., LTD |
| Dec 30, 2025 | 12,508,796 | Unconstrained vibration damping metal sheet with foam pores and method for manufacturing same | Basic materials chemistry | POSCO CO., LTD |
| Dec 16, 2025 | 12,497,708 | Electrogalvanized steel sheet having superb whiteness and method for manufacturing same | Surface technology, coating | POSCO CO., LTD |
| Dec 16, 2025 | 12,497,706 | Solution for electroplating iron, and electroplated steel sheet manufactured by using same | Surface technology, coating | POSCO CO., LTD |
| Dec 9, 2025 | 12,492,456 | Ultra high strength and high ductility steel sheet having excellent yield ratio and manufacturing method for same | Materials, metallurgy | POSCO CO., LTD |
| Dec 9, 2025 | 12,492,444 | High strength steel sheet having superior workability and method for manufacturing same | Materials, metallurgy | POSCO CO., LTD |
| Dec 2, 2025 | 12,486,553 | Zinc plated steel sheet having excellent fatigue strength of electrical resistance spot welds, and manufacturing method thereof | Materials, metallurgy | POSCO CO., LTD |
| Nov 25, 2025 | 12,480,171 | Ultra-thick structural steel having excellent brittle crack initiation resistance, and manufacturing method therefor | Materials, metallurgy | POSCO CO., LTD |
| Nov 25, 2025 | 12,480,170 | Grain-oriented electrical steel sheet and method for manufacturing same | Materials, metallurgy | POSCO CO., LTD |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Dec 25, 2025 | 2025/0391846 | POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND PREPARATION METHOD THEREFOR | Electrical machinery, apparatus, energy | POSCO CO., LTD |
| Dec 11, 2025 | 2025/0376747 | EXTREMELY THICK STEEL MATERIAL FOR FLANGE HAVING EXCELLENT STRENGTH AND LOW TEMPERATURE IMPACT TOUGHNESS, AND MANUFACTURING METHOD FOR SAME | Materials, metallurgy | POSCO CO., LTD |
| Dec 4, 2025 | 2025/0369800 | SYSTEM, METHOD AND APPARATUS FOR 3D HYPERSPECTRAL IMAGING | Measurement | POSCO CO., LTD |
| Nov 20, 2025 | 2025/0354241 | WIRE ROD FOR COLD HEADING HAVING EXCELLENT DELAYED FRACTURE RESISTANCE CHARACTERISTICS, PARTS, AND MANUFACTURING METHOD THEREFOR | Materials, metallurgy | POSCO CO., LTD |
| Nov 20, 2025 | 2025/0354240 | ULTRA-HIGH STRENGTH STEEL SHEET HAVING EXCELLENT BENDABILITY, AND MANUFACTURING METHOD THEREFOR | Materials, metallurgy | POSCO CO., LTD |
| Nov 13, 2025 | 2025/0346983 | HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET HAVING GOOD PLATING QUALITY, STEEL SHEET FOR PLATING, AND METHODS FOR MANUFACTURING SAME | Surface technology, coating | POSCO CO., LTD |
| Nov 13, 2025 | 2025/0346978 | PLATED STEEL SHEET FOR HOT PRESS FORMING HAVING EXCELLENT PLATING QUALITY, STEEL SHEET, AND RESPECTIVE METHODS FOR MANUFACTURING SAME | Surface technology, coating | POSCO CO., LTD |
| Nov 6, 2025 | 2025/0341013 | PLATED STEEL SHEET FOR HOT PRESS FORMING, HAVING EXCELLENT PLATING QUALITY, STEEL SHEET AND MANUFACTURING METHOD THEREFOR | Surface technology, coating | POSCO CO., LTD |
| Oct 30, 2025 | 2025/0333829 | HIGH-STRENGTH HOT-DIP GALVANIZED STEEL SHEET HAVING EXCELLENT SURFACE QUALITY AND ELECTRIC RESISTANCE SPOT WELDABILITY, AND MANUFACTURING METHOD THEREFOR | Materials, metallurgy | POSCO CO., LTD |
| Oct 30, 2025 | 2025/0333812 | AUSTENITE STAINLESS STEEL AND MANUFACTURING METHOD THEREFOR | Materials, metallurgy | POSCO CO., LTD |
What it applied for, 2024 to 2025: Materials, metallurgy 203 · Electrical machinery, apparatus, energy 35 · Surface technology, coating 34 · Machine tools 14 · Transport 11 · Macromolecular chemistry, polymers 11.
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.