Typologies of intellectual property graphically represents patents filed with the United States Patent & Trademark Office (USPTO). From the About Us page:
This webapplication provides a way to navigate, explore and discover the complex and interconnected world of ideas, inventions and big business. Patens are categorized by classification (subject of the patent), agents (lawyers), company, inventor and country. Within each category, unique icons are generated based on the values of each instance, and how they relate to other categories.
Every icon, patent or list item is clickable and amounts to a new relational search query. This enables you to create an endless route through the data, finding some great inventions along the way.
Hat tip to Computational Legal Studies.