Complex sentence: He is best known for being the most successful business person to produce bootlegged or unlicensed vacuum tubes (1915-1920) and coming out ahead after various lawsuits brought against him and his company, the Audio Tron Sales Company.
Split into simpler sentences: He is best known for being the most successful business person to produce bootlegged or unlicensed vacuum tubes (1915-1920). Unlike other manufacturers Cunningham came out ahead after various lawsuits brought against him and his company, the Audio Tron Sales Company.