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Is there a way to look up patents and designs in the UK and USA for a given company?

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Did you try searching Google (patents) by the name? – Ron J. Sep 25 '13 at 13:54
@RonJ. "name", what do you mean? – Wojtek Sep 25 '13 at 14:16
@RonJ. Lets say I want to search all patents by stack exchange inc, what would I put in the search box in ? – Wojtek Sep 25 '13 at 14:24
You can use google patents advanced and put the company name in the field "original assignee". It is imperfect for many reasons. Company names change, they have subsidiaries with similar but different names and also patents are bought and sold. The original assignee may not be the current owner. – George White Sep 26 '13 at 0:57

USPTO and FreePatentsOnline both allow the "an/" specifier for assignee, so you can search for "an/google" or "an/microsoft" for the most part. (Per George White's comment, it doesn't help follow business transactions e.g. subsidiaries and sales.)

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