Patents by Inventor Duncan S. Perrer

Duncan S. Perrer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Preparation of porous bodies
    Patent number: 4752459
    Abstract: A process for the preparation of at least one porous oxide or hydroxide body comprises:(i) adding at least one body comprising a sol of the oxide or hydroxide to a fluid freezing medium; and(ii) raising the temperature of the solid, quenched sol so that solvent nucleation occurs, resulting in the formation of crystals of the dispersion medium, and the dispersion medium melts thereby leaving one or more porous oxide or hydroxide bodies.
    Type: Grant
    Filed: March 27, 1986
    Date of Patent: June 21, 1988
    Inventor: Duncan S. Perrer