Complex sentence: In January 2006, Professor Kayton retired to his home in Free Union, Virginia and sold his company PRG to Landon IP, Inc.; a company that sells patent information, patent translations, and professional patent searches to the legal community.
Split into simpler sentences: In January 2006, Professor Kayton retired to his home in Free Union, Virginia. He sold PRG to Landon IP, Inc., a company that sells patent-related services to the legal community.