ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,243, issued on May 27, was assigned to EVERLAST CLIMBING INDUSTRIES INC. (Crystal, Minn.).

"Expandable climbing panel and climbing wall having such a panel" was invented by Timothy S. Sudeith (Edina, Minn.), Sarah M. Howard (Lakeville, Minn.), Joseph Sweeney (Minneapolis) and Nicolas Oklobzija (White Bear Lake, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to a climbing wall comprising one or more expandable climbing panels. The expandable climbing panel may be configured so that changing the angle of a portion of the climbing wall in one direction causes the climbing panel to expand, such that the panel prov...