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:
Jul. 14, 2026
Filed:
Jan. 11, 2024
Schneider Electric Usa, Inc., Andover, MA (US);
Michael Pyle, Hermitage, TN (US);
Schneider Electric USA, Inc., Boston, MA (US);
Abstract
Embodiments described herein provide techniques for securely validating firmware on a device using keys and providing a mechanism for deprecating such keys when a traditional certificate authority is unavailable or otherwise cannot be used. When a first firmware package is installed on the device, a first public key in a first secure memory key location is associated with an active status. Responsive to installation of a second firmware package on the device, a second public key in a second secure memory key location on the device is associated with an active status. During a boot-up operation on the device, embodiments determine to use the second public key to validate the second firmware package by starting at a predefined secure memory key location and scanning backwards until a status of active is identified. The second firmware package on the device is then validated using the second public key.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile