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

DATAMP Patents by Date for April 1881
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
5239,654----[datamp][all]
12239,969RE9,657---[datamp][all]
19240,217----[datamp][all]
26240,513----[datamp][all]