ALEXANDRIA, Va., May 26 -- United States Patent no. 12,635,692, issued on May 26, was assigned to KUMIAI CHEMICAL INDUSTRY Co. LTD. (Tokyo).
"Method for controlling weeds" was invented by Daigo Itaya (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A more effective weed control method is provided for a case where soil treatment with pyroxasulfone is carried out. The present invention provides a weed control method in which treatment with needle crystals of pyroxasulfone is carried out for soil with a composition having a clay content of not less than 15% or a sand content of less than 65%."
The patent was filed on Jan. 19, 2022, under Application No. 18/272,481.
*For further information, including ima...