ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,846, issued on June 23, was assigned to Stratasys Ltd. (Rehovot, Israel).

"Method and system for additive manufacturing of peelable sacrificial structure" was invented by Mayan Rumbak (Mazkeret Batia, Israel), Eduardo Napadensky (Natania, Israel) and Gavish Mida (Kibbutz Lehavot Haviva, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of additive manufacturing of a three-dimensional object includes sequentially dispensing and solidifying a plurality of layers. The plurality of layers may be formed with a plurality of different colored model materials, a flexible material arranged in a configured pattern to form a sacrificial structure ...