ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,243, issued on March 17, was assigned to R&D Engineering A/S (Hinnerup, Denmark).

"Method of designing a bolted joint" was invented by Flemming Selmer Nielsen (Hammel, Denmark), Jesper Stokbaek (Langa, Denmark) and Jens Vestergaard Nybo (Odense M, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method of establishing a bolted joint, the method comprising the following steps: selecting a type of bolted joint; determining a target pre-tension level for the selected bolted joint, wherein the target pre-tension level is less than 10% lower than a maximum pre-tension level of the bolted joint, the maximum pre-te...