Patent ID: 6995345

Claim:
An electrode apparatus for generating stray fields, comprising: a first element; and a second element, wherein the first element comprises an elongated member and an elongated electrode, the elongated electrode having one end connected to the elongated member, the second element comprises a base and an electrode plate that is connected to and extends outwardly from a surface of the base, the first element and the second element are positioned such that (a) the elongated electrode is spaced from a top portion of a face of the electrode plate by a distance of D 1 , which face faces the elongated electrode, and (b) a bottom surface of the elongated electrode is not directly over a distal side of the electrode plate, but is directly over at least a portion of the base, and the difference between the length of the elongated electrode and the length of the electrode plate is greater than or equal to about 4D 1 .