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:
Mar. 10, 2026
Filed:
May. 03, 2021
Applicant:
Hitachi Energy Ltd, Zürich, CH;
Inventors:
Stephane Isler, Faucigny, FR;
Christophe Benz, Collex, CH;
Assignee:
Hitachi Energy Ltd, Zürich, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01G 19/414 (2006.01); H01F 27/02 (2006.01); H01F 27/32 (2006.01); H01F 27/40 (2006.01);
U.S. Cl.
CPC ...
G01G 19/414 (2013.01); H01F 27/02 (2013.01); H01F 27/321 (2013.01); H01F 27/402 (2013.01);
Abstract
Techniques for assessing a health of a transformer breather are provided. The transformer breather contains a desiccant and is in fluid communication with an expansion tank of a fluid-insulated transformer. A weight measurement that is dependent on a weight of the transformer breather or of a component or sub-assembly thereof is processed 7 assess the health of the transformer breather.
Isler, Stephane. (2026). Method and system for breather health assessment for a transformer breather (U.S. Patent No. 12571671). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12571671
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile