For the Inventor, By the Inventor

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Alameda, CA, United States of America

Aqua Metals Inc.

USPTO Granted Patents = 12

% Expired Patents = 58.3

EPO Patents = 5

Trademarks = 1

Forward Citations = 10

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11 inventors (with patents filed for the assignee):

Robert Lewis Clarke (8 out of 42 patents)

Brian J Dougherty (6 out of 9 patents)

Stephen R Clarke (6 out of 10 patents)

4. Michael John King (5 out of 5 patents)

5. Michael David Hurwitz (5 out of 6 patents)

6. Samaresh Mohanta (4 out of 39 patents)

7. Selwyn Mould (2 out of 2 patents)

8. Bruce Middleton Bathurst (1 out of 2 patents)

9. Paul Edward Henning (1 out of 1 patent)

10. Richard H Clarke (1 out of 24 patents)

11. Joshua Hufford (1 out of 1 patent)

12. Brian C Dougherty (52 patents)

13. Joshua Reill (0 patent)

14. Benjamin Sol Taecker (0 patent)

15. Jiaqi Liao (0 patent)

12 patents: Sort by Forward Citations

1. 12412940 - Systems and methods for metal recovery from lithium ion batteries (2025-09-09),

2. 11708640 - Systems and methods for aqueous recovery of lead from lead acid batteries with reduced electrolyte demand (2023-07-25),

3. 11239507 - Devices and method for smelterless recycling of lead acid batteries (2022-02-01),

4. 11072864 - Systems and methods for continuous alkaline lead acid battery recycling (2021-07-27),

5. 11028460 - Systems and methods for recovery of lead from lead acid batteries (2021-06-08),

6. 10962463 - System and method for measuring dissolved metal concentrations using a chemosensor film (2021-03-30),

7. 10793957 - Closed loop systems and methods for recycling lead acid batteries (2020-10-06),

8. 10689769 - Electrodeposited lead composition, methods of production, and uses (2020-06-23),

9. 10665907 - Devices and method for smelterless recycling of lead acid batteries (2020-05-26),

10. 10340561 - Devices and method for smelterless recycling of lead acid batteries (2019-07-02),

11. 10316420 - Systems and methods for continuous alkaline lead acid battery recycling (2019-06-11),

12. 9837689 - Method for smelterless recycling of lead acid batteries (2017-12-05),

Aqua Metals Inc. is a leading provider of clean technologies for the metals industry. They have developed and commercialized AquaRefining™, a revolutionary process that produces high-quality, low-cost lead by recycling lead-acid batteries. With a mission to recycle all lead batteries more sustainably, Aqua Metals is committed to providing environmentally friendly solutions for the battery recycling industry.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

12 Patents

#27 in Alameda, CA

#6,052 in California

#25,508 in US

#48,055 in the World

Alameda, CA, United States of America

Aqua Metals Inc.

Forward Citations = 10

11 inventors:

Robert Lewis Clarke (8 out of 42 patents)

Brian J Dougherty (6 out of 9 patents)

Stephen R Clarke (6 out of 10 patents)

4. Michael John King (5 out of 5 patents)

5. Michael David Hurwitz (5 out of 6 patents)

Please report any incorrect information to [email protected]

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