US Patent Issued to University of the District of Columbia on April 8 for "Scratch tester for adhesion testing of coatings on surfaces" (Maryland Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,792, issued on April 8, was assigned to University of the District of Columbia (Washington).

"Scratch tester for adhesion testing of coatings on surfaces" was invented by Pawan Tyagi (Derwood, Md.) and Wondwosen Demisse (Hyattsville, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A scratch testing apparatus comprises a lightweight frame assembly and a test specimen support stage that may hold a test specimen (i.e., the material to be subjected to a scratch test) and may be horizontally moved along slide rails mounted to the frame assembly. A stylus is mounted to a load block and points toward the test specimen support stage to enable the stylus ...