Patent 12133674 was granted and assigned to Pulse Biosciences on November, 2024 by the United States Patent and Trademark Office.
Described herein are methods and apparatuses for the application of electric energy treatment(s) to skin tissue to alter pigmentation, and in particular to remove a tattoo. These methods and apparatuses may deliver pulsed electrical energy having a pulse duration in submicrosecond pulse range to provide high-field strength pulses that may effectively release tattoo ink and allow removal of tattoo ink regardless of ink color or composition.