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

DATAMP Patents by Date for March 1922
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
71,408,524----[datamp][all]
141,409,254----[datamp][all]
211,409,921----[datamp][all]
281,410,714----[datamp][all]