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Boolean Search

Type the words or phrases you want to search in one or all text entry areas. Select the patent fields to be searched with the selector to the right of each entry area. When using more than one area, choose the logical operator (AND or OR). You can get the text field definitions.

For the latest updated information of the database, see Currency of information.

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Other Information
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Date Search

To restrict your search to a specific date range, you must select a date field below. For the date search coverage, see completeness of date fields  .