US Patent Issued to Sumitomo Chemical on Oct. 20 for "Heating transpiration composition, and method for exterminating harmful arthropods using same" (Japanese Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,765,532, issued on Oct. 20, was assigned to Sumitomo Chemical Co. Ltd. (Tokyo).

"Heating transpiration composition, and method for exterminating harmful arthropods using same" was invented by Hiroshi Okamoto (Hyogo, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a heating transpiration composition having an excellent efficacy on exterminating harmful arthropods, which comprises a natural pyrethrin and a pyrethroid compound, wherein the weight ratio of active ingredients of the natural pyrethrin relative to the pyrethroid compound is within the range of 20:1 to 200:1."

The patent was filed on April 1, 2022, under App...