ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,394,331, issued on Aug. 19.

"Stringed instrument bow grip trainer, ergonomic grip for stringed instrument bow, and/or retrofit accessory for a musical instrument" was invented by Rafael Javadov (Falls Church, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ergonomic grip for violin bows and/or other string instruments configured to teach proper grip techniques. A detachably affixable accessory for musical instruments designed to enhance playing abilities and reinforce correct posture and playing habits. A retrofit grip for a violin bow that encourages users-new and experienced alike-to properly grip the violin bow when playing the violin."

The pa...