Patents by Inventor David E. Pearson

David E. Pearson 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).

  • BIPHENYLPHENOL POLYMERIZATION CATALYSTS
    Publication number: 20240150502
    Abstract: Embodiments are directed towards a use of a supported biphenylphenol polymerization catalyst to make a polymer via a slurry-phase polymerization process, where the supported biphenylphenol polymerization catalyst is made from a biphenylphenol polymerization precatalyst of Formula I.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 9, 2024
    Applicant: Dow Global Technologies LLC
    Inventors: Ruth Figueroa, Angela I. Padilla-Acevedo, Andrew J. Young, Roger L. Kuhlman, Susan Brown, Matthew E. Belowich, David R. Neithamer, Jerzy Klosin, David M. Pearson, Leslie E. O'Leary, Mari S. Rosen, Joseph F. DeWilde
  • HYDROCARBYL-MODIFIED METHYLALUMINOXANE COCATALYSTS FOR BISPHENYLPHENOXY METAL-LIGAND COMPLEXES
    Publication number: 20240092952
    Abstract: Processes of polymerizing olefin monomers.
    Type: Application
    Filed: January 25, 2022
    Publication date: March 21, 2024
    Applicant: Dow Global Technologies LLC
    Inventors: David M. Pearson, Yi Jin, Alfred E. Vigil, JR., Brian M. Habersberger, Lisa S. Madenjian, Harold W. Boone
  • Pultrusion/extrusion method
    Patent number: 4938823
    Abstract: A method for the manufacture of fiber reinforced plastic articles includes the steps of pultruding a first profile through a die and applying a thermoplastic resin to the first profile to form a second profile bonded integrally to the first profile. A fiber reinforced plastic article (10) prepared according to the method of the present invention comprises a first profile (11) comprising a plurality of continuous fiber reinforcing materials (13) and a thermosetting resin (14) impregnating the reinforcing material and, a second profile (12) integrally bonded to the first profile and comprising a thermoplastic resin (65).
    Type: Grant
    Filed: October 7, 1988
    Date of Patent: July 3, 1990
    Assignee: The Pultrusions Corporation
    Inventors: David T. Balazek, Thomas J. Griffiths, David E. Pearson