ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,351, issued on May 27, was assigned to PT ESG NEW ENERGY MATERIAL (Jakarat Selatan, Indonesia) and PT QMG NEW ENERGY MATERIALS (Jakarta Selatan, Indonesia).

"Limestone slurry and lime milk preparing device for hydrometallurgy of laterite nickel ore" was invented by Satryo Soemantri Brodjonegoro (Dki Jakarta, Indonesia), Kaihua Xu (Guangdong, China), Yaguang Peng (Dki Jakarta, Indonesia), Rizky Wanaldi (Dki Jakarta, Indonesia), Tegar Mukti Aji (Dki Jakarta, Indonesia), Andi Syaputra Hasibuan (Dki Jakarta, Indonesia), Evan Wahyu Kristiyanto (Dki Jakarta, Indonesia) and Arnaldo Marulitua Sinaga (Dki Jakarta, Indonesia).

According to the abstract* released by the U.S. Patent & Tradem...