Use the Basic Text Search to find patent documents containing a specific word or phrase.
Use the Patent Document Number Search to find a specific patent document by it's number.
Use the Boolean Text Search to find patent documents with words or phrases in one, two or three text fields, using boolean connectors (AND or OR) to narrow or expand your search.
Use the Advanced Text Search to find patent documents with words or phrases in any of the searchable fields or consult the search language help to form a complex query.
