Mattel
On November 10, 2017, the "Wall Street Journal" reported that Hasbro, Inc. had made a takeover offer for Mattel, Inc. At the time, Mattel worth was $5 billion, while Hasbro was about $11 billion. On November 15, 2017, Reuters reported that Mattel rejected the offer.
Barbie
Louis Marx and Company sued Mattel in March 1961. After licensing Lilli, they claimed that Mattel had “infringed on Greiner & Hausser's patent for Bild-Lilli’s hip joint, and also claimed that Barbie was "a direct take-off and copy" of Bild-Lilli. The company additionally claimed that Mattel "falsely and misleadingly represented itself as having originated the design". Mattel counter-claimed and the case was settled out of court in 1963. In 1964, Mattel bought Greiner & Hausser's copyright and patent rights for the Bild-Lilli doll for $21,600.