US Patent Issued to BIOGEN MA on March 3 for "Substituted pyrrolo[1,2-bpyridazines and pyrrolo[2,1-f[1,2,4triazines as Btk inhibitors" (Massachusetts Inventors)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,500, issued on March 3, was assigned to BIOGEN MA INC. (Cambridge, Mass.).

"Substituted pyrrolo[1,2-bpyridazines and pyrrolo[2,1-f[1,2,4triazines as Btk inhibitors" was invented by Isaac Marx (Arlington, Mass.), Jurgen Schulz (Boston), Brian T. Hopkins (Newton, Mass.), Bin Ma (Arlington, Mass.), Robin Prince (Sharon, Mass.) and Marta Nevalainen (Holliston, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are compounds of Formula (I) or pharmaceutically acceptable salts thereof, wherein ring A, R3, R4, R5, R6, A1, B1, B2, Q1 and Q2 are as defined herein; and methods for their use and production."

The patent was filed on Oct. 29, 2020, u...