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

DATAMP Patents by Date for April 1927
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
51,623,290----[datamp][all]
121,624,339----[datamp][all]
191,624,954----[datamp][all]
261,625,881----[datamp][all]