US Patent Issued to Tetraphase Pharmaceuticals on April 8 for "Crystalline forms of eravacycline" (Massachusetts Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,807, issued on April 8, was assigned to Tetraphase Pharmaceuticals Inc. (Waltham, Mass.).

"Crystalline forms of eravacycline" was invented by Danny LaFrance (Natick, Mass.), Philip C. Hogan (Brighton, Mass.), Yansheng Liu (Winchester, Mass.), Minsheng He (Andover, Mass.), Chi-Li Chen (Newton, Mass.) and John Niu (Bedford, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to crystalline forms of the bis-HCl salt of a compound represented by Structural Formula 1, and pharmaceutical compositions comprising crystalline forms of the bis-HCL salt of a compound represented by Structural Formula 1 described herein. The crystalline f...