Primary Examiner (PEX)

To search for patents that were handled by a particular examiner use the PEX field code.

This field is helpful if you want to investigate the examiner who is examining your patent.  Look up the patents, view the file history, and get an idea of the examiner's mentality.

PEX has a companion field code ASEX for searching the Assistant Examiner field.

Examples

  • PEX:(Lai, Andrew)  -->  Finds patents examined by the primary examiner, Andrew Lai.
  • PEX:(Lai, Andrew) OR ASEX:(Lai, Andrew)  -->  Finds patents where Andrew Lai was either the examiner or the assistant examiner.

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