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Priority Number
The priority number is the number of the application in respect of which priority is claimed, ie it is the same as the application number
of the claimed priority document.
The priority number is made up of a country code
(two letters), the year of filing (four digits) and a serial number (variable, seven digits). A serial number having less than seven digits can be rounded up to seven digits by adding zeros (eg GB19950008026).
Alternatively, the zeros can be omitted entirely (eg GB19958026).
To retrieve all the documents having a particular country code
in combination with other search criteria (dates, etc.), all you have to do is enter the country code
(eg GB) in the priority number field in combination with a date in the publication date
field.
You may enter a maximum of four search terms per field and a total of 21 search terms per mask.
If more than one term is entered in the priority number field, the default operator
is OR. This means that you can enter your search terms without having to type the default operator
.
For more information on patent searching, see the following pages:
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