Patents by Inventor William P. Powell

William P. Powell 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).

  • Patent number: 11981764
    Abstract: There is described an acrylic polyester resin, obtainable by grafting an acrylic polymer with a polyester material. The polyester material is obtainable by polymerizing (i) a polyacid component, with (ii) a polyol component, including—2,2,4,4-tetraallcylcyclobutane-1,3-diol. One of the polyacid component or the polyol component comprises a functional monomer operable to impart functionality on to the polyester resin, such that an acrylic polymer may be grafted with the polyester material via the use of said functionality. Also provided is an aqueous coating composition comprising the acrylic polyester resin and a metal packaging containing coated with the composition.
    Type: Grant
    Filed: May 4, 2021
    Date of Patent: May 14, 2024
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Adam Bradley Powell, William H. Retsch, Jr., Edward R. Millero, Jr., John M. Dudik, Christopher P. Kurtz, Michael Olah, Anand K. Atmuri
  • Patent number: 6474265
    Abstract: An adjustable aquarium divider for dividing an aquarium into separate sections while allowing water flow between the sections. The adjustable aquarium divider includes a first panel and a second panel. Each of the panels is rigid and has a first side and second side. Each of the panels has a generally rectangular shape. The panels each have a plurality of apertures therein extending through first and second sides. A fastening member removably fastens the first panel to the second panel such that the first and second panels are partially overlapping and a wall is defined. The first and second panels have aligned upper and lower edges. The wall has a pair of lateral side edges. The panels are positioned in an aquarium such that each of the lateral side edges is abutting one of a pair of opposite walls in the aquarium.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: November 5, 2002
    Inventor: William P. Powell