Patents by Inventor David L. Halstead

David L. Halstead 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: 20220064820
    Abstract: The invention is related to an improved fiber and articles comprising the improved fibers. The fiber comprises: 90 wt % to 99.99 wt % thermoplastic resin; and 0.01 wt % to 10 wt % additive is defined by Formula (I): wherein: Ar is selected from the group consisting of aryl, monosubstituted aryl and polysubstituted aryl, heteroaryl, monosubstituted heteroaryl and polysubstituted heteroaryl; Ar1 and Ar2 are independently selected from the group consisting of aryl, monosubstituted aryl and polysubstituted aryl, heteroaryl, monosubstituted heteroaryl and polysubstituted heteroaryl; R1 and R2 are independently an alkylene radical having 2-20 carbon atoms; and n and m are independently 1-20.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 3, 2022
    Inventors: Kevin R. Hrebenar, Frederick E. Wilson, III, David L. Halstead, Charles V. Hinton
  • Publication number: 20170143861
    Abstract: A bedding composition for treating bedding to mitigate ammonia buildup in a commercial aviary is described. The bedding composition comprises a solvent; an active component comprising: 86.5-98.9 wt % alkali metal silicate; 1-10 wt % stabilizer; 0.1-10 wt % bacteriacide; 0-2 wt % colorant; and 0-0.5 wt % de-chlorinator.
    Type: Application
    Filed: November 24, 2015
    Publication date: May 25, 2017
    Inventors: Richard T. Jensen, David L. Halstead, Frederick E. Wilson, III