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DATAMP Patents by Date for April 1822
This table shows the number of the first patent in the DATAMP database for each date, broken down by patent type.
DateUtilityReissueDesignXAIPatents
2---X3,489-[datamp] 
4---X3,490-[datamp] 
6---X3,491-[datamp] 
11---X3,492-[datamp] 
13---X3,493-[datamp] 
16---X3,496-[datamp] 
17---X3,498-[datamp] 
19---X3,499-[datamp] 
23---X3,503-[datamp] 
25---X3,507-[datamp] 
27---X3,509-[datamp] 
29---X3,512-[datamp] 
30---X3,513-[datamp]