Google Patents is described as 'Basic Keyword Patent Search' and is an website in the Business & Commerce category. There are three alternatives to Google Patents, not only websites but also apps for . The best alternative is GoodIP IQ, which is free. Other great sites and apps similar to Google Patents are IP Street (Paid) and KISSPatent (Free).
Patent Data doesn't have to be difficult to work with... IP Street provides semantic patent search, claim text analytics, automated due diligence, and clean patent data all available at an API endpoint.
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IP Street vs Google Patents opinions
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IP Street has the same underlying data sets as Google Patents but provides it via programmatic API access.