Patent citations and citation data is available from a number of different sources. But how reliable is this data? Are citation links double counted? What about the effect of family members?


In this blog linked here we look at these questions and compare the Ambercite approach to some other well known databases. We show how Ambercite can give both more direct citation links that these other sources - and yet avoid the errors and extra time caused by the double counting of citations links seen in these other database.

We do this for four case studies, being:

  • A granted US patent, filed by a US applicant
  • A granted US patent, filed by a non-US applicant
  • A patent family without any US family members
  • Patent families with US family members, but from the perspective of non-US patents - such as the example shown below



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