ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,451,315, issued on Oct. 21, was assigned to Thermo Finnigan LLC (San Jose, Calif.).
"Ion guide electrode configurations for polarity-independent ion containment" was invented by Michael W. Senko (Sunnyvale, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ion guide includes a first arrangement of electrodes on a first surface, a second arrangement of electrodes on a second surface, and an ion containment space in a gap therebetween. The first arrangement includes first electrodes and second electrodes. Each first electrode includes a first main portion and a first edge portion. The first edge portion is wider than the first main portion. The sec...