ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,116, issued on Feb. 3, was assigned to SYNGENTA CROP PROTECTION AG (Basel, Switzerland).

"Process for the preparation of 5-chloro-3-alkylsulfanyl-pyridine-2-carboxylic acid amides and carboxylates" was invented by Helmars Smits (Stein, Switzerland), Mattia Riccardo Monaco (Stein, Switzerland) and Raphael Dumeunier (Stein, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A process for the preparation of compound of formula (I) is provided: where R1 and R2 are as defined in the description."

The patent was filed on March 3, 2021, under Application No. 17/908,375.

*For further information, including images, charts and tables, please visit: h...