Patent ID: 7186952

Claim:
An electrically heatable glazing panel comprising: a substrate, a substantially transparent, electrically conductive coating layer; spaced first and second bus bars, in which at least part of the coating layer is adapted to be electrically heatable via the spaced first and second bus bars, in which the first and second bus bars are substantially non-parallel in diverging at least one portion along their lengths, and in which the coating layer comprises a plurality of zones comprising at least: i) A first passive coated zone, which is adapted to be substantially non-heatable electrically; and ii) A first active coated zone which is adapted to be electrically heatable; the active and passive zones being provided in the form of strips having substantially parallel sides along their lengths; and the first bus bar being provided at an upper edge of the glazing panel and the second bus bar being provided at a lower edge of the glazing panel.