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US 2002/0164443 A1Published application
Geometyrical shaping of surfaces with a lotus effect
AssigneeCREAVIS Gesellschaft fuer Tech. und Innovation mbH
InventorsMarkus Oles, Edwin Nun, Bernhard Schleich
Life of this patent
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Abstract
A surface structure having protuberances with at least one protuberance configured as a three-dimensional rotationally symmetric shape. The surface structure can be included as surfaces on containers, pipettes, films, semifinished products, or reaction vessels.
Claims21
A surface structure comprising:
- protuberances having a mean height of 50 nm to 200 μm and a mean spacing of 50 nm to 200 μm, at least one protuberance of said protuberances configured as a three-dimensional rotationally symmetric shape.
A self-cleaning surface structure comprising:
- a base surface;
- and
- protuberances located on said base surface, at least one protuberance configured as a three-dimensional rotationally symmetric shape and the at least one protuberance having no mathematical discontinuities on a curvature of the rotationally symmetric shape.
Dependencies are inferred from the claim text.