Choose Your Options
Use only the search options that you need--leave the others blank.
Patent or Application Number
Enter a two-letter patent country code followed by a space and the patent number as it appears in the patent or citation. Include all punctuation. For example, patent number US 5,251,234 or application number EP 93200044. To display a list of country codes, click Country Code List.
Note about U.S. application numbers: U.S. application numbers are reused every several years. To search by U.S. application number, if you know the application year, select the year from the Application Year drop-down list.
Priority Only (Application Number)
Check the Priority Only box to restrict application number searches to the priority application only.
Patent Assignee
Enter the name of the assigned owner. For example, SILICON GRAPHICS. Do NOT include words like Corp., Inc., etc.
Patent Country
Select one of the countries from the list. Check for legal status availability by country.
Patent or Application Year
Select the All Years or From option. Choose the All Years option for the fastest processing. If the From option is selected, select a starting year and an ending year from the drop-down lists.
