ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,630, issued on Aug. 5, was assigned to GEM Co. LTD. (Shenzhen, China) and PT GEM INDONESIA NEW ENERGY MATERIALS (Jakarta Selatan, Indonesia).

"Combined heat exchange system of flash tank and preheater for laterite nickel ore leaching" was invented by Satryo Soemantri Brodjonegoro (Dki Jakarta, Indonesia), Kaihua Xu (Guangdong, China), Rizky Wanaldi (Dki Jakarta, Indonesia), Tegar Mukti Aji (Dki Jakarta, Indonesia), Aad Alief Rasyidi Baking (Dki Jakarta, Indonesia), Andi Syaputra Hasibuan (Dki Jakarta, Indonesia), Piyan Rahmadi (Dki Jakarta, Indonesia), Yaguang Peng (Dki Jakarta, Indonesia) and Arnaldo Marulitua Sinaga (Dki Jakarta, Indonesia).

According to the abstract* released b...