ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,140, issued on May 5, was assigned to ELTRO GmbH (Baesweiler, Germany).
"Method for surface coating according to the sputtering principle" was invented by Marc Stramke (Baesweiler, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "There is a method for surface coating using a plasma coating device. The plasma coating device has a vacuum chamber; at least one sputtering source arranged in the vacuum chamber with a target of a solid material; a substrate to be coated; and at least one carrier gas source opening into the vacuum chamber. The method has the following steps: evacuating the vacuum chamber and supplying a carrier gas stream from the carr...