Part Of: Litigation Series -- Ore Milling Cases

[QX001-F] Edison v. Allis Chalmers Company et al.

This infringement case details the work of Edison and his assistants in the development of rock crushing technology at the Ogden mine during the period 1889-1899. The case involves the transfer of this technology to the Edison Portland Cement plant at Stewartsville, N.J. and its sale to other companies. The testimony by Emil Herter and Walter S. Mallory details research and development work by Edison and his assistants. The pocket notebooks to which Herter makes reference in his testimony can be found in the New Jersey and Pennsylvania Concentrating Works Plant Operations Records. These notebooks have not been selected. The following items have been selected:

• Complainant's Brief on Final Hearing
• Complainant's Record on Final Hearing
• Testimony by Walter S. Mallory and Emil Herter

Courtesy of Thomas Edison National Historical Park.

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