Inventor Luciano F. Paone significantly expanded his campaign with suits against Broadcom, Digi, Laird, Marvell, Mediatek, Microchip Technology, Texas Instruments, Qualcomm, and Quantenna. Paone’s litigation asserts a single patent, of which he is the sole inventor (6,259,789). The patent-in-suit relates to a cryptographic algorithm using product ciphers. At issue in the suits is Temporal Key Integrity Protocol (TKIP) technology incorporated into defendants’ products. According to the complaints, Paone also sent assertion letters to the defendants in December 2013.