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DATAMP Patents by Month for 1891
This table shows the number of the first patent in the DATAMP database for each month, broken down by patent type.
January 443,989-D20,448--[datamp][all]
February 445,617----[datamp][all]
March 447,377----[datamp][all]
April 449,666----[datamp][all]
May 451,477-D20,771--[datamp][all]
June 453,234-D20,814--[datamp][all]
July 455,300-D20,932--[datamp][all]
August 456,983----[datamp][all]
September 458,581----[datamp][all]
October 460,590-D21,126--[datamp][all]
November 462,280RE11,203---[datamp][all]
December 464,024RE11,208D21,253--[datamp][all]