Patents by Inventor Philip S. Williams

Philip S. Williams 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).

  • Publication number: 20240124750
    Abstract: A multilayer composite containing a polymeric membrane, a hot-melt adhesive layer, and a release liner, wherein the hot-melt adhesive layer comprises a thermally curable pressure-sensitive adhesive. The invention further relates to a process to make the composite and to use the composite as a roofing material, label, tape, Graphics and Medical applications.
    Type: Application
    Filed: December 6, 2023
    Publication date: April 18, 2024
    Inventors: Singa D. TOBING, Jason WOLFE, Timothy KLOTS, Philip S. WILLIAMS, Hiruy YIGEZU, Sujith CHACKO
  • Patent number: 4894172
    Abstract: A process for programming of field decay or of increase of channel flow in field-flow fractionation which imparts improved uniformity of fractionating power which comprises an improvement in the field-flow fractionation technique which involves varying one of the parameters that affect the interaction of the sample components with the field and fluid medium in order to reduce separation time and better equalize component separation. These parameters include decreasing the field strength according to a specific power equation, or increasing the flow rate according to another power equation, or use of both parameters together.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: January 16, 1990
    Assignee: University of Utah
    Inventor: Philip S. Williams