ALEXANDRIA, Va., Aug. 6 -- United States Patent no. D1,087,398, issued on Aug. 5.
"Underwater building material" was invented by Ignasi Ferrer Pellicer (Barcelona, Spain), Mireia de Mas Romeu (Barcelona, Spain) and Anna Lloveras Armengol (Barcelona, Spain).
The patent was filed on March 20, 2023, under Application No. D/517,089.
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