Advanced Search — Use this search option to create search queries using field tags and set combinations. Each search term must be prefaced by a field tag, and search terms must be joined by Boolean operators.

In the first example, we are searching for patent records on gas filled displays and found 511 records. In the second example, we have combined our first search from the General Search page with our second search (sets #1 and #2) to create set #3, which has 34 patent records.