Patents by Inventor William R. Howell, Jr.

William R. Howell, Jr. 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).

  • Degradable polycarbonate sport fishing materials
    Patent number: 10329381
    Abstract: Degradable polycarbonates network based bulk materials are provided. The bulk materials of the present disclosure may be produced having a wide range of tunable mechanical, physical, and thermal properties and are hydrolytically degradable. The bulk materials of the present disclosure may be suitable for the manufacture of a variety of sport fishing equipment or other equipment for water use or that may benefit from hydrolytic degradation in the environment.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: June 25, 2019
    Assignee: The Texas A&M University System
    Inventors: Karen L. Wooley, Simcha E. Felder, Brooke A. Versaw, Ashlee A. Jahnke, Lauren A. Link, Mark W. Wooley, Charles A. Hinton, William R. Howell, Jr.
  • DEGRADABLE POLYCARBONATE SPORT FISHING MATERIALS
    Publication number: 20180016390
    Abstract: Degradable polycarbonates network based bulk materials are provided. The bulk materials of the present disclosure may be produced having a wide range of tunable mechanical, physical, and thermal properties and are hydrolytically degradable. The bulk materials of the present disclosure may be suitable for the manufacture of a variety of sport fishing equipment or other equipment for water use or that may benefit from hydrolytic degradation in the environment.
    Type: Application
    Filed: July 14, 2017
    Publication date: January 18, 2018
    Inventors: Karen L. Wooley, Simcha E. Felder, Brooke A. Versaw, Ashlee A. Jahnke, Lauren A. Link, Mark W. Wooley, Charles A. Hinton, William R. Howell, JR.
  • Polymer supported Ziegler-Natta catalysts
    Patent number: 4632912
    Abstract: Ziegler-Natta catalysts which are polymer supported compounds or complexes of elements of the d-block transition metals, lanthanide or actinide series are disclosed. An example of the polymer support is chloromethylated polystyrene-divinyl benzene copolymer covalently bonded to catechol. An example of the compound or complex of an element of the transition metal, lanthanide or actinide series is that which results when catechol which is covalently bonded to the polymer is contacted with titanium tetraisopropoxide. These catalysts are useful in preparing polymers with reduced halide content which reduces corrosion in polymer processing equipment.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: December 30, 1986
    Assignee: The Dow Chemical Company
    Inventors: Stephen A. Bedell, William R. Howell, Jr., William M. Coleman, III
  • Polymerization of olefins in the presence of polymer supported Ziegler-Natta catalysts
    Patent number: 4623707
    Abstract: .alpha.-Olefins are polymerized in the presence of Ziegler-Natta catalysts which are polymer supported compounds or complexes of elements of the d-block transition metals, lanthanide or actinide series. An example of the polymer support is chloromethylated polystyrene-divinyl benzene copolymer covalently bonded to catechol. An example of the compound or complex of an element of the transition metal, lanthanide or actinide series is that which results when catechol which is covalently bonded to the polymer is contacted with titanium tetraisopropoxide.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: November 18, 1986
    Assignee: The Dow Chemical Company
    Inventors: Stephen A. Bedell, William M. Coleman, III, William R. Howell, Jr.