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

DATAMP Patents by Date for September 1920
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
71,351,908----[datamp][all]
141,352,512----[datamp][all]
211,353,246----[datamp][all]
281,354,325----[datamp][all]