Patent attributes
A wiper blade apparatus having at least one wiper lip for wiping a window in a first wiping direction at least substantially perpendicular to a longitudinal axis of the wiper lip and a second wiping direction at least substantially perpendicular to the longitudinal axis of the wiper lip, having at least one wiper bar unit and having at least one heating unit which is arranged partially at a wiping up side, facing the first wiping direction, of the wiper bar unit and which is arranged partially at a wiping down side, facing the second wiping direction, of the wiper bar unit. It is proposed that the at least one heating unit be constructed to achieve a different heating power at the wiping up side of the wiper bar unit from at the wiping down side.