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.
Patent No.:
Date of Patent:
Apr. 28, 2026
Filed:
Mar. 22, 2023
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Frank Weinelt, Billerbeck, DE;
Franz-Erich Baumann, Duelmen, DE;
Siegfried R. Waldvogel, Gau-Algesheim, DE;
Silja Hofmann, Wiesbaden, DE;
Joachim Nikl, Frankfurt am Main, DE;
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B 3/07 (2021.01); C25B 3/23 (2021.01); C25B 9/15 (2021.01); C25B 9/17 (2021.01);
U.S. Cl.
CPC ...
C25B 3/07 (2021.01); C25B 3/23 (2021.01); C25B 9/15 (2021.01); C25B 9/17 (2021.01);
Abstract
A process produces unsubstituted or at least monosubstituted α,ω-dicarboxylic acids and ketocarboxylic acids by electrochemical oxidation of unsubstituted or at least monosubstituted, monounsaturated or polyunsaturated cycloalkenes by electrochemical oxidation in the presence of an inorganic or organic nitrate salt in an electrolysis cell in a reaction medium in the presence of oxygen.