ALEXANDRIA, Va., June 5 -- United States Patent no. 12,275,681, issued on April 15, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).
"Olefin compound production method" was invented by Yuuko Ito (Osaka, Japan), Tsubasa Nakaue (Osaka, Japan), Takehiro Chaki (Osaka, Japan), Takashi Usui (Osaka, Japan), Tomoyuki Iwamoto (Osaka, Japan) and Megumi Kushida (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a method for producing an olefin compound using reaction with a base, whereby a target product with a higher purity than the prior art can be obtained. Specifically, provided is a method for producing an olefin compound by reacting a phosphorus-containing olefin compound salt with a b...