Patent ID: 7989040

Claim:
An insulating glass unit having a decorative pattern visible to the unaided eye, the glass unit comprising: a pair of glass sheets having inner and outer surfaces, the sheets disposed in a parallel, but spaced apart arrangement, defining a gap between their respective inner surfaces, the gap having a predetermined width; a frame attached around the periphery of both sheets to isolate the gap from the exterior environment thereby forming a sealed cavity, the sealed cavity being filled with a gas; a first plurality of dots, each dot of the first plurality being fixedly attached to the inner surface of one of the sheets, and having, prior to the placement of the other sheet, a height substantially equal to the width of the gap such that each dot touches, but is not fixedly attached to, the inner surface of the other sheet after placement of the other sheet; a second plurality of dots, each dot of the second plurality being attached to the inner surface of one of the sheets and having a height less than the width of the gap, the dots of the second plurality being arranged so as to form a pattern on the sheet that is visible to the unaided eye.