US Patent Issued to SYNGENTA CROP PROTECTION on March 18 for "Substituted azaspiro-cycles as herbicides" (British Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,250,947, issued on March 18, was assigned to SYNGENTA CROP PROTECTION AG (Basel, Switzerland).

"Substituted azaspiro-cycles as herbicides" was invented by Alan Joseph Hennessy (Bracknell, Great Britain), Elizabeth Pearl Jones (Bracknell, Great Britain), Suzanna Jane Dale (Bracknell, Great Britain), Alexander William Gregory (Bracknell, Great Britain), Ian Thomas Tinmouth Houlsby (Bracknell, Great Britain), Yunas Bhonoah (Bracknell, Great Britain) and Julia Comas-Barcelo (Bracknell, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to compounds of Formula (I), (I) wherein R1, R2, R3, R4 and G are as defined herei...