US Patent Issued to IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY on April 15 for "Cellulose based biodegradable absorptive filter and method of making" (Saudi Arabia, Egyptian Inventors)

ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,964, issued on April 15, was assigned to IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY (Riyadh, Saudi Arabia).

"Cellulose based biodegradable absorptive filter and method of making" was invented by Tarek Ahmed Yousef (Riyadh, Saudi Arabia), Osamah Abdulrahman Aldaghri (Riyadh, Saudi Arabia) and Saad Shaaban (Almansourah, Egypt).

According to the abstract* released by the U.S. Patent & Trademark Office: "A biodegradable filter for the removal of various pollutants, contaminants, or harmful substances from the surrounding air, and a method of fabrication. The filter includes 30% by weight of cellulose nanofibers, 30% by weight of activated carbon, and 20% by weight of polyethylene glyco...