Company Analysis

Amprius Technologies, Inc. (AMPX)

NYSE: AMPX · Miscellaneous Electrical Machinery, Equipment & Supplies · Fremont, CA · filing with the SEC since 2021
Grade5.7
◀ Past 5.2● Present 5.0▶ Future 7.1
1 est.

Patents

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

5 patents granted to the name 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 Amprius Technologies, Inc.’s names, not what it holds today.

Patents granted
5
5 utility, 1976 to Dec 31, 2025
Granted in 2025
none
Against 2 in 2024 and 3 in 2023
Applications published
0
since 2001, to Dec 31, 2025
Names they are printed under
1
its own name
By yearGrantedApplications published
'23'24
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
Electrical machinery, apparatus, energy4
Surface technology, coating1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name1 counted
AMPRIUS TECHNOLOGIES, INC. its own name
US, as the owner printed on each patent
5 granted
0 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Dec 24, 202412,176,526Compositionally modified silicon coatings for use in a lithium ion battery anodeElectrical machinery, apparatus, energyAMPRIUS TECHNOLOGIES, INC.
May 28, 202411,996,550Template electrode structures for depositing active materialsElectrical machinery, apparatus, energyAMPRIUS TECHNOLOGIES, INC.
Dec 26, 202311,855,279Structurally controlled deposition of silicon onto nanowiresElectrical machinery, apparatus, energyAMPRIUS TECHNOLOGIES, INC.
Oct 10, 202311,784,307Stabilized, prelithiated silicon oxide particles for lithium ion battery anodesElectrical machinery, apparatus, energyAMPRIUS TECHNOLOGIES, INC.
Jul 4, 202311,695,125Deposition on two sides of a webSurface technology, coatingAMPRIUS TECHNOLOGIES, INC.

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 AMPX · research, not advice