US Patent Issued to PROVEPHARM LIFE SOLUTIONS on April 8 for "Process for the preparation of Indigotindisulfonate sodium (indigo carmine)" (Indian Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,954, issued on April 8, was assigned to PROVEPHARM LIFE SOLUTIONS S.A. (Marseilles, France).

"Process for the preparation of Indigotindisulfonate sodium (indigo carmine)" was invented by Manik Reddy Pullagurla (Hyderabad, India) and Jagadeesh Babu Rangisetty (Hyderabad, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention relates to an improved method for the preparation of highly or substantially pure Indigotindisulfonate sodium (1). It further relates to the novel crystalline form I of Indigotindisulfonate sodium (1) and the process for its preparation."

The patent was filed on Nov. 2, 2023, under Application No. 18/500,247.

*For ...