ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,441, issued on March 18, was assigned to The Procter & Gamble Co. (Cincinnati).

"Cementitious compositions comprising recycled superabsorbent polymer" was invented by Paul T. Weisman (Cincinnati).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cementitious composition including recycled superabsorbent polymer (RSAP) and a cementitious material. The RSAP has a purity level of at least 85 percent by weight of the RSAP. Also provided is a cementitious composition where the RSAP has substantially low levels of one or more residual drug entities. Also provided is a method for the construction of a self-sealing cement sheath, the method comprising: suppl...