( January 28, 2025, 11:33 AM EST) -- WASHINGTON, D.C. — The U.S. Patent Trial and Appeal Board (PTAB) did not employ an unreasonable construction of the term “cache memory,” a Federal Circuit U.S. Court of Appeals panel held Jan. 27, affirming the board’s finding that a company’s patent was invalid as obvious in inter partes review (IPR) proceedings brought against it by streaming giant Netflix Inc....