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DATAMP Patents by Month for 1920
This table shows the number of the first patent in the DATAMP database for each month, broken down by patent type.
January 1,327,007RE14,794---[datamp][all]
February 1,329,456-D54,394--[datamp][all]
March 1,332,276-D54,673--[datamp][all]
April 1,335,721----[datamp][all]
May 1,338,757----[datamp][all]
June 1,341,726-D55,387--[datamp][all]
July 1,345,370-D55,591--[datamp][all]
August 1,348,148----[datamp][all]
September 1,351,908----[datamp][all]
October 1,354,651----[datamp][all]
November 1,357,323-D56,669--[datamp][all]
December 1,361,007-D56,812--[datamp][all]