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

DATAMP Patents by Date for April 1918
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
21,261,007----[datamp][all]
91,261,764----[datamp][all]
161,262,678----[datamp][all]
231,263,385----[datamp][all]
301,264,145----[datamp][all]