US Patent Issued to Nanospan India on July 14 for "Preparation of graphene nanosheets-based concrete additive" (Indian Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,780, issued on July 14, was assigned to Nanospan India Private Ltd. (India).

"Preparation of graphene nanosheets-based concrete additive" was invented by Venkata Ramana Gedela (Hyderabad, India), Ravi Nuguru (Hyderabad, India), Chinthakuntla Ashok (Nalgonda, India), Edulakanti Sai Ram (Medchal-Malkajgiri, India) and Jella Praveen Kumar (Nalgonda, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing a graphene-nanosheets based concrete additive is disclosed. The method comprises mixing Polycarboxylate ether A (PCE-A) to a retarder-based salt solution to obtain a retarder-based Polycarboxylate ether A solution. In the next step,...