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DATAMP Patents by Date for May 1991
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
75,012,581----[datamp][all]
145,014,442----[datamp][all]
215,016,693----[datamp][all]
285,018,315----[datamp][all]