ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,447, issued on Dec. 9, was assigned to Kunming University of Science and Technology (Kunming, China).

"Nonlinear oxygen-enriched injection method based on chaotic mapping and electronic device thereof" was invented by Hua Wang (Kunming, China), Kai Yang (Kunming, China) and Qingtai Xiao (Kunming, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A nonlinear oxygen-enriched injection method based on chaotic mapping and electronic device is disclosed, including: obtaining a chaotic gas injection volume corresponding to a current speed change period according to a chaotic mapping value corresponding to the current speed change period and a peak gas i...