Patents by Inventor Victoria E. Granstaff

Victoria E. Granstaff 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 for simultaneous measurement of mass loading and fluid property changes using a quartz crystal microbalance
    Patent number: 5201215
    Abstract: A method, using a quartz crystal microbalance, to obtain simultaneous measurement of solid mass accumulation and changes in liquid density-viscosity product. The simultaneous real-time measurements of electrical parameters yields that changes in surface mass can be differentiated from changes in solution properties. Two methods to obtain the admittance/frequency data are employed.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: April 13, 1993
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Victoria E. Granstaff, Stephen J. Martin