1902—The Jagenberg Machine Co. begins the introduction into the United States of a line of German-made automatic packaging-and-labeling machines for coffee.
1902—T.K. Baker, Minneapolis, is granted two United States patents on a cloth-filter coffee maker.
1903—A United States patent on a coffee concentrate and process of making the same (soluble coffee) is granted to Sartori Kato of Chicago, assignor to the Kato Coffee Company of Chicago.
1903—F.A. Cauchois introduces Coffey's soluble coffee to the United States coffee trade, the product being ground roasted coffee mixed with sugar and reduced to a powder.
1903—Overproduction in Brazil causes Santos 4's to drop to 3.55 cents on the New York Exchange, the lowest price ever recorded for coffee.
1903—John Arbuckle, New York, is granted a United States patent on a coffee-roasting apparatus, employing a fan to force the "hot fire gases" into the roasting cylinder.
1903—George C. Lester, New York, is granted a United States patent on an electric coffee roaster.
1904—Dr. E. Denekamp is granted a United States patent on a rosin glaze for roasted coffee, designed to preserve its flavor and aroma.
1904—The so-called "cotton crowd," under the leadership of D.J. Sully, forces green-coffee prices up to 11.85 cents, all records for business on the New York Coffee Exchange being smashed by the sale of over a million bags on February 5.
1904—Sigmund Sternau, J.P. Steppe, and L. Strassberger, assignors to S. Sternau & Co., New York, are granted a United States patent on a coffee percolator.