Covestro Deutschland Assigned Patent

Covestro Deutschland AG, Leverkusen, Germany, has been assigned a patent (10,329,244) developed by Facke, Thomas, Leverkusen, Germany, Bruder, Friedrich-Karl, Krefeld, Germany, Rolle, Thomas, Leverkusen, Germany, and Honel, Dennis, Zupich-Wichterich, Germany, for a “moisture-stable holographic media.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: “The invention relates to novel compounds which are especially suitable for use as writing monomers in holographic media. The invention further provides a photopolymer and a holographic medium comprising the inventive compounds, and an optical display, a security document and a holographic optical element comprising an inventive holographic medium.”

The patent application was filed on December 11, 2015 (15/536,841).