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Alcoa Corporation (AA)

NYSE: AA · Primary Production of Aluminum · Pittsburgh, PA · filing with the SEC since 2016
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Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

482 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 Alcoa Corporation’s names, not what it holds today.

Patents granted
482
455 utility, 22 design, 4 reissue, 1 defensive publication, 1976 to Dec 31, 2025
Granted in 2025
2
Against 2 in 2024 and 3 in 2023
Applications published
77
3 of them in 2025
Names they are printed under
8
a subsidiary, its own name
By yearGrantedApplications published
'06'07'12'14'15'16'17'18'19'20'21'22'23'24'25
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, metallurgy9
Surface technology, coating4
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name8 counted
Reynolds Metals Company a subsidiary
US, as the owner printed on each patent
436 granted
1 published
ALCOA USA CORP. a subsidiary
US, as the owner printed on each patent
34 granted
7 published
ALCOA USA CORP. a subsidiary
named as the applicant on its applications, in US
0 granted
34 published
ALCOA INC. its own name
US, as the owner printed on each patent
4 granted
11 published
ALCOA INC. its own name
named as the applicant on its applications, in US
0 granted
14 published
Alcoa of Australia Limited a subsidiary
AU, as the owner printed on each patent
6 granted
3 published
ALCOA OF AUSTRALIA LIMITED a subsidiary
named as the applicant on its applications, in AU
0 granted
6 published
Alcoa Aluminio S/A a subsidiary
BR, as the owner printed on each patent
2 granted
1 published
Names not counted (1)
Alumina Pty Ltd
Most of its patents print IT; this name counts in AU. 1 granted and 0 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Jun 24, 202512,338,507Methods of recycling aluminum alloys and purification thereofMaterials, metallurgyALCOA USA CORP.
Apr 8, 202512,270,117Process for manufacturing carbon anodes for aluminium production cells and carbon anodes obtained from the sameMaterials, metallurgyALCOA USA CORP.
Sep 17, 202412,091,765Apparatuses and systems for vertical electrolysis cellsSurface technology, coatingALCOA USA CORP.
Jul 23, 202412,043,581Systems and methods for making ceramic powdersMaterials, metallurgyALCOA USA CORP.
Sep 12, 202311,753,345Systems and methods for making ceramic powders and ceramic productsMaterials, metallurgyALCOA USA CORP.
Jul 11, 202311,697,1517XX aluminum casting alloys, and methods for making the sameMaterials, metallurgyALCOA USA CORP.
Feb 21, 202311,584,9773XX aluminum casting alloys, and methods for making the sameMaterials, metallurgyALCOA USA CORP.
Dec 21, 202111,203,814Apparatuses and systems for vertical electrolysis cellsSurface technology, coatingALCOA USA CORP.
Aug 31, 202111,103,9197xx aluminum casting alloys, and methods for making the sameMaterials, metallurgyALCOA USA CORP.
Aug 3, 202111,078,584Systems and methods of electrolytic production of aluminumSurface technology, coatingALCOA USA CORP.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Oct 9, 20252025/0313979SYSTEMS AND METHODS OF RECYCLING ALUMINUM SCRAP AND ASSOCIATED PRODUCTSSurface technology, coatingALCOA USA CORP.
Sep 11, 20252025/0283192METHODS OF RECYCLING ALUMINUM ALLOYS AND PURIFICATION THEREOFMaterials, metallurgyALCOA USA CORP.
Feb 13, 20252025/0051898HIGH STRENGTH EXTRUSION ALLOYMaterials, metallurgyALCOA USA CORP.
Dec 26, 20242024/0425378ELECTRODES FOR ALUMINUM ELECTROLYSIS CELLS AND METHODS OF MAKING THE SAMESurface technology, coatingALCOA USA CORP.
Sep 5, 20242024/0295043ADVANCED PURIFICATION CELL FOR ALUMINUM SCRAP RECYCLINGSurface technology, coatingALCOA USA CORP.
Aug 29, 20242024/0287695ADVANCED PURIFICATION CELL FOR ALUMINUM SCRAP RECYCLINGSurface technology, coatingALCOA USA CORP.
Aug 29, 20242024/0286966TITANIUM DIBORIDE PRODUCTS WITH DIRECTING FEATURESMaterials, metallurgyALCOA USA CORP.
Feb 22, 20242024/0059577METHOD OF PREPARING ALUMINAMaterials, metallurgyALCOA OF AUSTRALIA LIMITED
Oct 26, 20232023/0340652HIGH STRENGTH EXTRUSION ALLOYMaterials, metallurgyALCOA USA CORP.
Mar 30, 20232023/0099382AL-SI-FE CASTING ALLOYSMaterials, metallurgyALCOA USA CORP.
What it applied for, 2024 to 2025: Materials, metallurgy 4 · Surface technology, coating 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.

SI Assistanton AA · research, not advice