ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,378,421, issued on Aug. 5, was assigned to AEROGEL APS (Copenhagen O, Denmark).

"Freeze-dried loaded aerogel particles with biocidal properties" was invented by Eva Wallstrom (Copenhagen O, Denmark).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to silica aerogels with a high to very high loading (55-90% w/w) of encapsulated biocidal and/or biorepellant compounds, high porosity and low thermal conductivity and to methods of making and using such aerogels in antifouling compositions, which are especially suitable for both onshore and offshore coatings (marine paints, coatings, sealants, lacquers, wood protection or similar con...