PatentStorm.com is a site where you can find all patents from 1990 forward. They offer patents from the US Patent Office, including full-text patent search. So if you are an inventor, a patent attorney, or a patent agent this is the site you where looking for. They have a list of patents divided into categories to make your search much easier, you can also browse by inventor or even by date. All the patent information that they provide is for free.