The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 30, 2025

Filed:

Feb. 23, 2022
Applicant:

Twelve Benefit Corporation, Berkeley, CA (US);

Inventors:

Shuai Zhao, Santa Clara, CA (US);

Sichao Ma, Dublin, CA (US);

Edward Izett, Berkeley, CA (US);

Timothy A. Bekkedahl, Fremont, CA (US);

Kendra P. Kuhl, Oakland, CA (US);

Assignee:

Twelve Benefit Corporation, Berkeley, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B 15/02 (2021.01); C25B 3/26 (2021.01); C25B 9/19 (2021.01); C25B 13/08 (2006.01);
U.S. Cl.
CPC ...
C25B 15/02 (2013.01); C25B 3/26 (2021.01); C25B 9/19 (2021.01); C25B 13/08 (2013.01);
Abstract

Methods and/or systems for operating a carbon oxide reduction electrolyzer may involve (a) performing normal operation at the electrolyzer; (b) performing a recovery or protection process including: (i) applying a modified current and/or voltage to the electrolyzer, and (ii) while applying the reverse current to the electrolyzer, flowing a recovery gas to the cathode; and (c) resuming normal operation at the electrolyzer. Applying a modified current and/or voltage may involve applying a short circuit to the electrolyzer, holding the electrolyzer electrodes at open circuit voltage, and/or applying a reverse current to the electrolyzer.


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