ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,147, issued on Feb. 17, was assigned to Advanced Diamond Holdings LLC (Beltsville, Md.).

"Selective deposition of diamond" was invented by John P. Ciraldo (Clarksburg, Md.), Joshua Blackketter (Laurel, Md.) and Jonathan Levine-Miles (Silver Spring, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method provides a single-crystal diamond substrate having a growth surface. A diamond growth inhibitor (DGI) is positioned over a diamond inhibition area of the growth surface. A first diamond portion having a first dopant concentration is deposited using chemical vapor deposition over a growth area of the growth surface. The diamond growth inhibitor an...