ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,473, issued on May 13, was assigned to Persimmon Technologies Corp. (Wakefield, Mass.).

"Transport apparatus with pulley with a non-circular profile" was invented by Martin Hosek (Salem, Mass.), Leonard T. Lilliston (Roxbury, Mass.) and Jacob Lipcon (Arlington, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus having a drive unit having a first drive axis rotatable about a first axis of rotation and a second drive axis rotatable about a second axis of rotation, the second drive axis being coaxial with and partially within the first drive axis and axially rotatable within the first drive axis. A robot arm has an upper arm connected to...