Google has released a new product - a search engine that offers full-text search across more than 200 year's worth of American patents, or about 7 million patents.
Google Patent Search
The US patent office had already made this information available online, but Google claims to have improved the search functionality.
An article from yesterday's Guardian, by Dan Glaister, describes the new search tool and some of the celebrity patents that can be found on it, from Jamie Lee Curtis's nappy-and-a-baby-wipe design to Marlon Brando's drumhead tensioning tool.
Dan Glaister article - Guardian website