How do you measure the innovative spirit of a place or region? Perhaps you might look at the number of patents filed in a given period. Public policy folks have looked at the number of patents filed in the Silicon Valley and other high-tech nodes for decades. Similarly, this rather intriguing site, crafted by the Public Library of Cincinnati and Hamilton County, brings together the patents issued to persons residing in that area from 1814 to 1873. Visitors can browse through the entries alphabetically if they are so inclined, or they can also use the search engine. For new visitors, the "H" patent listings are quite rich, as they contain a number of hand printing presses, hand corn huskers, and hoisting apparatuses.