U. S. Patent and Trademark Office
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U. S. Patent and Trademark Office - PatentsThe USPTO Patents page contains information on the patent process, U.S. patent statistics, and patent-related resources and guidance.
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U.S. Patent and Trademark Office - Patent Full-Text DatabasesU.S.-issued patents and published patent applications available for searching and display.
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Help with images on the USPTO DatabaseHelp for installing browser plug-ins to view .pdf images of patents on the USPTO database.
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Patent classification systemsUSPTO page with the latest information and updates on systems for classifying patents.
USPTO Patent and Trademark Resource Centers
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USPTO Patent and Trademark Resource CentersThe USPTO administers a network of public, state and academic libraries designated as Patent and Trademark Resource Centers to disseminate patent and trademark information, and to support the intellectual property needs of the public.
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Detroit Public Library - The Patent and Trademark Resource CenterThe Detroit Public Library is one of four Michigan libraries designated as Patent & Trademark Resource Centers. Instruction on patent searching and information on the patent application process is available through the DPL Business, Science & Technology Department, (313) 481-1391.
USPTO Director's Blog
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