generate questions: In September 2007, during a lawsuit with patent holding company Burst.com, Apple drew attention to a patent for a similar device that was developed in 1979. Kane Kramer applied for a UK patent for his design of a "plastic music box" in 1981, which he called the IXI. He was unable to secure funding to renew the US$120,000 worldwide patent, so it lapsed and Kramer never profited from his idea.
Apple was involved in a lawsuit with which company in 2007? {sep_token} Who previously applied for a patent for an iPod-like device? {sep_token} In what country did Kane Kramer apply for his patent? {sep_token} In what year did Kane Kramer apply for his patent? {sep_token} What did Kane Kramer call the device for which he wanted a patent? {sep_token} What patent holding company sued Apple in 2007? {sep_token} What was the name of the previously-patented music player from 1981? {sep_token} Who was the holder of the previous patent for the "plastic music box"?