US Patent Issued to Ortho Inventions on July 28 for "Polyaxial locking fastener with negative threads" (Ohio Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,690,905, issued on July 28, was assigned to Ortho Inventions LLC (Palm Beach Gardens, Fla.).

"Polyaxial locking fastener with negative threads" was invented by Greg Lentner (Maumee, Ohio) and John E. Hammill Sr. (Maumee, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A polyaxial ball-and-socket fastener is disclosed that provides enhanced locking performance through intersecting negative thread profiles formed on complementary hemispherical surfaces. The fastener includes a saddle assembly having a hemispherical socket with a right-hand negative thread profile and an anchor member having a spherical head with a left-hand negative thread profile. Wh...