ALEXANDRIA, Va., March 5 -- United States Patent no. 12,239,358, issued on March 4, was assigned to POLLOGEN LTD. (Tel Aviv, Israel).

"Devices and methods for fractional treatment of tissue" was invented by Amikam Gershonowitz (Tel Aviv, Israel), Eyal Ben Esti (Tel Aviv, Israel) and Mordechai Moti Elnekave (Haifa, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tissue treatment device and method comprising a plurality of spaced-apart elongated electrodes configured to receive radio frequency (RF) signal from an RF energy source and for be inserted into tissue at a plurality of depths. The elongated electrodes having a first polarity and a single flat electrode located having a second polarity. The si...