Patent ID: 8221870

Claim:
An article comprising: an operational surface comprising a microfeatured surface including physical features, the physical features comprising at least one porous physical feature, at least one rough physical feature, at least one pitted physical feature, at least one foamed physical feature, at least one grooved physical feature, at least one cross-hatched physical feature, at least one striated physical feature, at least one patterned physical feature, at least one embossed physical feature, or any combination thereof, each physical feature having at least one width dimension of about 100 microns or less and a height dimension that is greater than half of the width dimension, the physical features being spaced apart from one another by a first distance of about 100 microns or less; and a hydrophobic coating on the operational surface, the coating comprising at least one non-fluorinated hardenable resin and at least one fluorinated component, the fluorinated component comprising a fluorinated reactant comprising from about 3 to about 40 fluorine atoms, a fluorinated monomer comprising from about 3 to about 40 fluorine atoms, or a polymerization product of a fluorinated reactant comprising from about 3 to about 40 fluorine atoms or of a fluorinated monomer comprising from about 3 to about 40 fluorine atoms, wherein the hydrophobic coating has a thickness of less than about half of the first distance.