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:
Mar. 19, 2024
Drager Safety Ag & Co. Kgaa, Lubeck, DE;
Mark Winship, Tyne and Wear, GB;
Dräger Safety AG & Co. KGaA, Lübeck, DE;
Abstract
A piezo sounder devicecomprising a piezo sounderand a controller, wherein the controlleris configured, upon activation of the piezo sounder device, to drive the piezo sounderat: a first frequency substantially corresponding to a resonant frequency of the piezo sounderat a first operational temperature; and a second frequency substantially corresponding to a resonant frequency of the piezo sounderat a second operational temperature. Also disclosed is a methodof manufacturing the device, and a methodof emitting a sound
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile