ALEXANDRIA, Va., Aug. 5 -- United States Patent no. 12,701,640, issued on Aug. 4, was assigned to Kanthal AB (Hallstahammar, Sweden).
"Heating element with open-cell structure" was invented by Fernando Rave (Hallstahammar, Sweden), Thomas Lewin (Hallstahammar, Sweden) and Pengcheng Cao (Hallstahammar, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heating element comprises a main body having a three-dimensional matrix with an open structure including openings and internal voids, cavities and/or pores extending throughout the main body. The three-dimensional matrix is provided as a lattice having a repeating unit cell extending in three directions. The present heating element is adapted for maximised...