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The US Patent and Trademark Office (PTO) offers World-Wide Web (Web) access
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Jul 4, 2009 ... See this important information about searching for patents: How to Conduct a
Preliminary U.S. Patent Search: A Step by Step Strategy - Web ...
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Jul 11, 2015 ... It is quite common for inventors to do a patent search and find nothing even when
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This patent search tool allows you not only to search the PCT database of about
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