Patents
US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026
12 patents granted to the 2 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 Aqua Metals, Inc.’s names, not what it holds today.
Patents granted
12
12 utility, 1976 to Dec 31, 2025
Granted in 2025
1
Against none in 2024 and 1 in 2023
Applications published
16
2 of them in 2025
Names they are printed under
2
its own name
By yearGrantedApplications published
'16'17'18'19'20'21'22'23'25
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, metallurgy3
Surface technology, coating2
Measurement1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name2 counted
AQUA METALS INC. its own name
US, as the owner printed on each patent
7 publishedAqua Metals Inc. its own name
named as the applicant on its applications, in US
9 published
Newest grantseach row opens the USPTO’s own copy
| Granted | Patent | Title | Field | Owner as printed |
|---|
| Sep 9, 2025 | 12,412,940 | Systems and methods for metal recovery from lithium ion batteries | Materials, metallurgy | AQUA METALS INC. |
| Jul 25, 2023 | 11,708,640 | Systems and methods for aqueous recovery of lead from lead acid batteries with reduced electrolyte demand | Materials, metallurgy | AQUA METALS INC. |
| Feb 1, 2022 | 11,239,507 | Devices and method for smelterless recycling of lead acid batteries | Surface technology, coating | AQUA METALS INC. |
| Jul 27, 2021 | 11,072,864 | Systems and methods for continuous alkaline lead acid battery recycling | Materials, metallurgy | AQUA METALS INC. |
| Jun 8, 2021 | 11,028,460 | Systems and methods for recovery of lead from lead acid batteries | Surface technology, coating | AQUA METALS INC. |
| Mar 30, 2021 | 10,962,463 | System and method for measuring dissolved metal concentrations using a chemosensor film | Measurement | AQUA METALS INC. |
| Oct 6, 2020 | 10,793,957 | Closed loop systems and methods for recycling lead acid batteries | Surface technology, coating | AQUA METALS INC. |
| Jun 23, 2020 | 10,689,769 | Electrodeposited lead composition, methods of production, and uses | Electrical machinery, apparatus, energy | AQUA METALS INC. |
| May 26, 2020 | 10,665,907 | Devices and method for smelterless recycling of lead acid batteries | Surface technology, coating | AQUA METALS INC. |
| Jul 2, 2019 | 10,340,561 | Devices and method for smelterless recycling of lead acid batteries | Surface technology, coating | AQUA METALS INC. |
Newest applications publishedan application is a clue, never a plan
| Published | Application | Title | Field | Owner as printed |
|---|
| Jul 3, 2025 | 2025/0215523 | Improved Systems And Methods For Metal Recovery From Lithium Ion Batteries | Materials, metallurgy | AQUA METALS INC. |
| Mar 6, 2025 | 2025/0075357 | Systems And Methods For Direct Oxide Production | Materials, metallurgy | AQUA METALS INC. |
| Oct 5, 2023 | 2023/0313400 | Systems And Methods For Aqueous Recovery Of Lead From Lead Acid Batteries With Reduced Electrolyte Demand | Materials, metallurgy | AQUA METALS INC. |
| Oct 27, 2022 | 2022/0341051 | Systems And Methods For Aqueous Recovery Of Lead From Lead Acid Batteries With Reduced Electrolyte Demand | Materials, metallurgy | AQUA METALS INC. · patent 11,708,640 granted from it |
| Sep 1, 2022 | 2022/0275527 | Metal Recovery From Lead Containing Electrolytes | Surface technology, coating | AQUA METALS INC. |
| Dec 17, 2020 | 2020/0393350 | SYSTEM AND METHOD FOR MEASURING DISSOLVED METAL CONCENTRATIONS USING A CHEMOSENSOR FILM | Measurement | AQUA METALS INC. · patent 10,962,463 granted from it |
| Jan 30, 2020 | 2020/0033314 | SENSOR DYES FOR REAL-TIME SENSING OF METAL IONS IN AQUEOUS ENVIRONMENTS | Basic materials chemistry | Aqua Metals Inc. · patent 11,275,071 granted from it |
| Oct 3, 2019 | 2019/0301031 | Systems And Methods For Continuous Alkaline Lead Acid Battery Recycling | Materials, metallurgy | Aqua Metals Inc. · patent 11,072,864 granted from it |
| Aug 29, 2019 | 2019/0267681 | Devices and Method for Smelterless Recycling of Lead Acid Batteries | Surface technology, coating | Aqua Metals Inc. · patent 11,239,507 granted from it |
| Dec 13, 2018 | 2018/0355494 | Closed Loop Systems and Methods for Recycling Lead Acid Batteries | Surface technology, coating | AQUA METALS INC. · patent 10,793,957 granted from it |
What it applied for, 2024 to 2025: Materials, metallurgy 2.
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.