US Patent Issued to SAUDI ARABIAN OIL on May 6 for "Compositions and methods for branched calcium lignosulfonate cement dispersants" (Saudi Arabia Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,291,670, issued on May 6, was assigned to SAUDI ARABIAN OIL COMPANY (Dhahran, Saudi Arabia).

"Compositions and methods for branched calcium lignosulfonate cement dispersants" was invented by Khawlah A. Alanqari (Dhahran, Saudi Arabia), Abdullah Al-Yami (Dhahran, Saudi Arabia), Vikrant Wagle (Abqaiq, Saudi Arabia) and Ali Alsafran (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Compositions may include a calcium lignosulfonate salt having a chemical structure (I), wherein a total number of syringyl groups is 2 to 10. The compositions may further include an alcohol, an aldehyde, and water. Cement slurries may include a lignosulfonate...