US Patent Issued to NANTONG DONG-CONCEPT NEW MATERIAL TECHNOLOGY on Oct. 7 for "Method for preparing bioactive particles by spray drying, liquid nitrogen quick-freezing and vacuum freeze drying" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,170, issued on Oct. 7, was assigned to NANTONG DONG-CONCEPT NEW MATERIAL TECHNOLOGY LTD. (Nantong, China).

"Method for preparing bioactive particles by spray drying, liquid nitrogen quick-freezing and vacuum freeze drying" was invented by Xiaodong Chen (Nantong, China), Wenjie Lu (Nantong, China) and Zhenkai Liao (Nantong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing bio-active particles by spray drying, liquid nitrogen quick-freezing, and vacuum freeze drying includes the following steps: transporting a feed liquid into a preheated spray tower, wherein the feed liquid forms liquid droplets after being atomized by an at...