Web site has everyone talking.
It has a searchable database of over two million federal land title records for the Eastern Public Land States. When you visit the site, you are required to enter the zip code for your place of residence, after which all searches are free of charge and restriction. Choose a state to search from the list of links shown. A search in Ohio for the KNOX surname as the patentee gave me 24 matches to choose from, each with a given name, the date of signature, a document number and accession number. Following the link for one of the persons listed led me to a page with a complete patent description including such data as the patentee name, land office name, section, township, range, meridian, number of acres and county.