ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,948, issued on March 17, was assigned to Hotwire Development LLC (Scottsdale, Ariz.).

"Block and tackle assembly for bladder anchor" was invented by Jeffrey S. Doss (Scottsdale, Ariz.), Jason Swanson (Fountain Hills, Ariz.) and David M. Daniel (Phoenix).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pulley system for tying a boat to an anchor with a block and tackle assembly and a jammer. The block and tackle assembly has pulleys arranged on a first bracket and a second bracket and a rope strung through each of the pulleys. The jammer is coupled to the first bracket and has a channel and a jammer exit at the end of the channel. The jammer is confi...