US2019319152A1 — Super-Hydrophobic Surfaces and Methods for Producing Super-Hydrophobic Surfaces

A patent abstract reproduced in the source dossier on superhydrophobic metallic tubes. The dossier lists it together with US2015136226A1 under the same title, "Super-hydrophobic surfaces and methods for producing super-hydrophobic surfaces."

Claimed subject matter (as summarized in the dossier)

• A metal or metal alloy including a region with hierarchical micro-scale and nano-scale structure shapes.
• The surface region is super-hydrophobic.
• The surface region has a spectral reflectance of less than 30% for at least some wavelengths of electromagnetic radiation in the range of 0.1 μm to 10 μm.
• Methods for forming the hierarchical micro-scale and nano-scale structure shapes on the metal or metal alloy are also described.

Relationship to the tube work

The patent describes a superhydrophobic surface and its fabrication, not a floating tube. The dossier juxtaposes this patent with the Advanced Functional Materials paper on floating tubes but does not state whether the tube work is covered by this patent. See US10876193B2 — Methods for Making a Material Superwicking and/or Superwetting (Superhydrophilic) for the inverse (superwicking/superwetting) counterpart from the same laboratory, and Patent as Evidence for the wiki's treatment of patent abstracts as an evidence class.