RichLink® 1993-2005. Sentius Corporation. The technology in RichLink is protected by US patent 5,822,720. Sentius, RichLink, RichLink Author, RichLink Automate, RichLink Symbol, RichLink Logotype, RichLink Logo, Link On Your Terms (RichLink tagline), AutoTagger, License Burst, Word Burst and Knowledge Burst are trademarks of Sentius.