ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,624, issued on June 24, was assigned to Maria Katsadas (Beaver, Pa.).
"Exercise tire" was invented by Jon Lambrinos (Campbell, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A replacement exercise bike tire that will emulate the ride characteristics and effort of a conventional bike tire that is partially deflated. The increased roll resistance imparted by the exercise tire will enhance the bike rider's workout by imparting greater pedal effort required to ride. Multiple interconnected compartments within the tire body are filled with a high viscosity material that will displace under load as the tire rotates during use emulating a flat tire."...