US Patent Issued to TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, TOYOTA JIDOSHA on Jan. 13 for "Passive temperature controlled valve with temperature responsive polymer" (Michigan Inventor)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,315, issued on Jan. 13, was assigned to TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA INC. (Plano, Texas) and TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Passive temperature controlled valve with temperature responsive polymer" was invented by Jae Seung Lee (Ann Arbor, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system including: a temperature responsive polymer configured to expand to a cross-sectional area of a fluid channel when a temperature of the fluid in the fluid channel is greater than or equal to a temperature threshold Tth, and to retract to less than the cross-sectional area when the temperature of the fluid in the fluid ch...