Patents by Inventor Stanislaw L. Randzio

Stanislaw L. Randzio 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).

  • Method and device for studying the effect of a supercritical fluid on the transition of a material from one condensed phase to the other and their application in the case of a polymer material
    Patent number: 6750062
    Abstract: The invention concerns the study of the effect of a supercritical fluid on the transitions of a material, which consists in varying continuously or by stages according to a predetermined programme, a first parameter value selected among the super-critical fluid pressure, the temperature of a cell containing the material sample and said sample volume, while maintaining a second of said parameters at a value selected, so as to induce the transition; and in recording the variation of the first parameter, that of the third parameter and the heat flow rate in the cell; in comparing said recordings with those obtained by replacing the supercritical fluid with a neutral fluid. The figure shows a diagram of the device for carrying out said study. The invention is in particular useful for studying a polymer material transitions.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: June 15, 2004
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Stanislaw L. Randzio, Jean-Pierre E. Grolier