ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,712, issued on March 3.

"Method of manufacture of a watch crystal" was invented by Corey Albert Morrow (Oshawa, Canada).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of manufacturing a diamond watch crystal wherein the present invention employs multiple techniques to produce the final product. The method of the present invention initiates with a chemical vapor deposition process wherein a high purity graphite is employed as the source substrate. This step further deploys utilization of gases, temperature and an energy source to facilitate formation of a diamond layer on the substrate. The present invention provides alternate energy sources ...