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Uspto - United States Patent and Trademark Office

patft.uspto.gov/

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

Google Patent Search

www.google.com/patents

Search more than seven million U.S. patents.

Google Patents

patents.google.com/

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 ...

www.ipwatchdog.com/2015/07/11/patent-searching-101-a-patent-search-tutorial-2/id=59308/

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 ...

www.legalzoom.com/business/intellectual-property/patent-search-overview.html

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

www.epo.org/searching-for-patents.html

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

www.epo.org/searching-for-patents/technical/espacenet.html

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

worldwide.espacenet.com/

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

www.ipaustralia.gov.au/patents/understanding-patents/searching-patents

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

www.freepatentsonline.com/

Complete Patent Searching Database and Patent Data Analytics Services.

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Search for Patents | USPTO

www.uspto.gov

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

www.google.com

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

patentscope.wipo.int

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.