Minerals Separation, Ltd. v. Hyde - Wikipedia
Minerals Separation v. Hyde, 242 U.S. 261 (1916), is a United States Supreme Court case.. Background. Minerals Separation, Limited obtained U.S. Patent No. 835,120, issued on November 6, 1906, to Henry Livingston Sulman, Hugh Fitzalis Kirkpatrick-Picard and John Ballot.As stated in the specification of the patent, the claimed discovery related "to improvements in the process for the ...