Home | FAQ Search: Advanced | Person | Company | Type | Class Login
Quick search:
Patent number:
Patent Date:

DATAMP Patents by Date for April 1975
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
13,874,809----[datamp][all]
153,877,146----[datamp][all]
223,878,706----[datamp][all]
293,879,996----[datamp][all]