Patents by Inventor Petra Turkewitsch

Petra Turkewitsch 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).

  • Viscosity Probe
    Patent number: 5834230
    Abstract: Substituted aminostyrylpyridinium salts are fluorescent dyes having advantageous characteristics when employed as viscosity probes for the measurement of viscosity in a liquid, especially in a very small volume, for example, in living cells.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: November 10, 1998
    Assignee: McGill University
    Inventors: Graham D. Darling, Seymour Heisler, deceased, Brent R. Stranix, Petra Turkewitsch, Barbara Wandelt