The mark consists of a sigmoid curve in the form of a solid line passing through a circle, the inflection point of the curve being at the center of the circle, and a plurality of additional sigmoid curves in the form of dotted lines also with points of inflection at the center of the circle above the solid line to the left and below the solid line to the right, the lines becoming fainter the further they are away from the solid curve, with the word "SIGMOID" in stylized font beneath the circle, wherein the solid curve and the word "SIGMOID" are dark blue and the outer portion of the circle is light blue and the dotted lines range from dark blue to light blue as they move away from the dark blue center line and the inner portion of the circle is white. The white background is not claimed as a feature of the mark.