ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,562,331, issued on Feb. 24, was assigned to BUHLER ALZENAU GMBH (Alzenau, Germany).
"Extraction grid" was invented by Holger Reus (Freigericht, Germany), Daniel Reppin (Greifenstein, Germany), Dirk Muller (Neuberg, Germany), Simon Liu (Seligenstadt, Germany) and Harro Hagedorn (Frankfurt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for extracting ions and/or electrons from a plasma has a grid (1) and a grid holder (2), on the circumference of which the grid (1) is fastened. According to the invention, the grid (1) is configured as an expanded metal grid. The invention further also provides a plasma source, a plasma coating device, an...