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:
Sep. 30, 2025
Filed:
Feb. 24, 2023
Alcon Inc., Fribourg, CH;
James Y. Chon, Irvine, CA (US);
Ahmad Salehi, Irvine, CA (US);
Kurt D. Leukanech, Laguna Niguel, CA (US);
Satish Yalamanchili, Irvine, CA (US);
Dan Teodorescu, Irvine, CA (US);
Ho Man Michael Fong, Irvine, CA (US);
Alcon, Inc., Fribourg, CH;
Abstract
An ultrasonic handpiece includes a piezoelectric element assembly. Control signals drive the piezoelectric element assembly simultaneously in a first mode of oscillation and a second mode of oscillation. Feedback of a resulting oscillation of the piezoelectric element assembly in the first mode and the second mode is generated. Based on the feedback, the frequency of each of the first mode and second mode is independently adjusted, as needed, so that the resulting oscillation of each of the first mode and the second mode is each approximately at its respective resonant frequency.