ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,934, issued on Aug. 12, was assigned to NOF Corp. (Shibuya-ku, Japan).
"Surface treatment agent for soft contact lens" was invented by Masatomo Takahashi (Oita, Japan), Shunsuke Sakurai (Yokosuka, Japan), Hiroko Kawasaki (Kawasaki, Japan) and Takanori Fujita (Oita, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a surface treatment agent for soft contact lens, containing a reaction product obtained through a reaction between a poly(meth)acrylic acid which has an average molecular weight of 1,000 to 2,000,000, and a copolymer (P) which is obtained through polymerization of a specified hydrophilic monomer (nA) and...