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PatentPapers.com sells software to let customers download US patents. The premier program, PatPDF, creates Adobe (R) pdf files of US patents. This program can save the user money, as conventional patent databases charge typically $2-4 per patent; with PatPDF there is no per patent fee. In addition, the user is not dependent on the status of a third-party web site, as PatPDF connects the user's computer directly to the US Patent and Trademark Offices servers.
