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:
Dec. 31, 2024
Filed:
Jun. 16, 2023
Centre National DE LA Recherche Scientifique, Paris, FR;
Université DE Lille, Lille, FR;
Ecole Centrale DE Lille, Villeneuve d'Asq, FR;
Sorbonne Universite, PARIS, FR;
Michaël Aymeric Baudoin, Lezennes, FR;
Olivier Khalil Nizar Bou Matar-Lacaze, Saint Amand les Eaux, FR;
Antoine Jean-Pierre Riaud, La Roche sur Yon, FR;
Jean-Louis Pierre Thomas, Montgeron, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITÉ DE LILLE, Lille, FR;
ECOLE CENTRALE DE LILLE, Villeneuve d'Asq, FR;
SORBONNE UNIVERSITE, Paris, FR;
Abstract
Electroacoustic device having a transducer including a piezoelectric substrate, first and second electrodes of inverse polarity having respective first and second tracks provided on said substrate, the first and second tracks spiraling around a same center (C), the transducer being configured for generating a swirling ultrasonic surface wave in the substrate.