Patents by Inventor Timothy D. Hoffmaster

Timothy D. Hoffmaster 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).

  • Process for measuring fluorescence
    Patent number: 4549807
    Abstract: Fluorescent measurements are taken utilizing a Raman enhancing surface by a method which allows reduction or essentially complete elimination of interference by fluorescence quenchers. In particular, the fluorescent medium to be measured is interacted with a Raman enhancing surface. Through this interaction between the Raman enhancing surface and the fluorescing species, fluorescence quenching is eliminated. The quenching is particularly significant in analytical procedures such as those involved in chromatography and medical testing.
    Type: Grant
    Filed: October 7, 1983
    Date of Patent: October 29, 1985
    Assignee: AT&T Bell Laboratories
    Inventor: Timothy D. Hoffmaster