ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,799, issued on May 27, was assigned to Southeast University (Nanjing, China).

"Calculation method for annual average probabilistic seismic loss of external substructure reinforcement system based on interfacial shear stresses" was invented by De-Cheng Feng (Nanjing, China), Xu-Yang Cao (Nanjing, China) and Gang Wu (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A calculation method for an annual average loss of an external substructure reinforcement system based on interfacial shear stresses is provided. The calculation method includes: step 1: establishing a deterministic model for an external substructure reinforcement system, and g...