ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,775, issued on April 8, was assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS (Dhahran, Saudi Arabia).
"Composition for enhancing the thickening time of hematite-based fly ash geopolymers" was invented by Ahmed Elsayed Ahmed Ibrahim Abdelaal (Dhahran, Saudi Arabia) and Salaheldin Mahmoud Ahmed Elkatatny (Dhahran, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hematite-based fly ash composition includes a curable component including a fly ash binder material (FFA) and a hematite weighting agent present in an amount of 20 to 80% by weight of the fly ash binder material (BWOB). The composition further includes superplasticizers ...