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Uspto - United States Patent and Trademark Office


The US Patent and Trademark Office (PTO) offers World-Wide Web (Web) access to bibliographic and full-text patent databases.

Google Patent Search


Search more than seven million U.S. patents.

Google Patents


Search and read the full text of patents from around the world with Google Patents, and find prior art in our index of non-patent literature.

Patent Searching 101: A Patent Search Tutorial - IPWatchdog.com ...


Jul 11, 2015 ... It is quite common for inventors to do a patent search and find nothing even when there are things that could and would be found by a ...

Patent Search - Perform a U.S. Patent Search Before Applying for a ...


Perform a comprehensive USPTO patent search to discover filed or pending patents similar to yours. Save time and money by searching patents before filing  ...

EPO - Searching for patents


Technical information. We provide access to the largest single source of technical information in the world: our databases containing millions of patent ...

EPO - Espacenet patent search


Jul 8, 2016 ... Accessible to beginners and experts, Espacenet contains data on more than 90 million patent documents from around the world. Supporting ...

Espacenet - Home page


Espacenet: free access to the database of over 90 million patents. ... of linked CPC symbols created by patent examiners – are now searchable in Smart search .

Searching patents | IP Australia


May 30, 2016 ... Before you apply for a patent, it is important to conduct a comprehensive search for patent information. This step in the application process ...

Free Patents Online


Complete Patent Searching Database and Patent Data Analytics Services.

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Search for Patents | USPTO


Jul 4, 2009 ... See this important information about searching for patents: ... Inventors are encouraged to search the USPTO's patent database to see if a ...

Advanced Patent Search - Google


Advanced Patent Search, About Google ... Patent number, Return patents with the patent number. Title, Return patents with the patent title. Inventor, Return ...

WIPO - Search International and National Patent Collections


This patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections.