Patents by Inventor Keith Chappell

Keith Chappell 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: 20250223319
    Abstract: The present disclosure relates generally to chimeric polypeptides that comprise a microbial polypeptide (preferably (a) a virion surfaced exposed portion of an enveloped viral fusion protein or (b) a bacterial outer membrane polypeptide) and a heterologous structure-stabilizing moiety, and to complexes comprising those chimeric polypeptides. The present disclosure also relates to the use of these chimeric polypeptides and complexes thereof in compositions and methods for eliciting an immune response to a microbial polypeptide (preferably a fusion protein of an enveloped virus or a bacterial outer membrane polypeptide), or to respective complexes thereof and/or for treating or preventing related microbial infection (preferably an enveloped virus infection or a bacterial infection).
    Type: Application
    Filed: March 31, 2023
    Publication date: July 10, 2025
    Applicant: THE UNIVERSITY OF QUEENSLAND
    Inventors: Keith CHAPPELL, Daniel WATTERSON, Nicolas TARDIOTA, Mark Andrew SCHEMBRI
  • Publication number: 20240033343
    Abstract: This disclosure relates generally to modified SARS-CoV-2 spike polypeptides. More particularly, the present disclosure relates to modified SARS-CoV-2 spike proteins with improved properties, to chimeric polypeptides comprising these modified proteins, and to complexes comprising the chimeric polypeptides. The present disclosure also relates to the use of these modified polypeptides, chimeric polypeptides and complexes in compositions and methods for eliciting an immune response to ACE2-interacting coronaviruses, including SARS-CoV-2, and/or for treating or inhibiting the development of ACE2-interacting coronaviruses infections.
    Type: Application
    Filed: August 26, 2021
    Publication date: February 1, 2024
    Applicant: THE UNIVERSITY OF QUEENSLAND
    Inventors: Keith CHAPPELL, Paul YOUNG, Daniel WATTERSON
  • Patent number: 8206817
    Abstract: A window or door flashing or roofing material, containing no asphalt, either mechanically fastened or self-adhering comprising a mixture of: one or more ethylene based elastomers having a melting point below 160° F., in an amount of 10-40% based on the total weight of the product; one or more semi-crystalline, non-elastomer alpha olefin-based polymers having a melting point above 160° F. in an amount of about 10-40% based on the total weight of the product; and a rubber fraction of ground, vulcanized rubber having a size up to about 18 mesh, US Sieve Series, in an amount of about 10% to about 75%, based on the total weight of the product.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: June 26, 2012
    Inventors: Michael Donovan, Jason M. Logsdon, Keith Chappell
  • Publication number: 20100314026
    Abstract: A window or door flashing or roofing material, containing no asphalt, either mechanically fastened or self-adhering comprising a mixture of: one or more ethylene based elastomers having a melting point below 160° F., in an amount of 10-40% based on the total weight of the product; one or more semi-crystalline, non-elastomer alpha olefin-based polymers having a melting point above 160° F. in an amount of about 10-40% based on the total weight of the product; and a rubber fraction of ground, vulcanized rubber having a size up to about 18 mesh, US Sieve Series, in an amount of about 10% to about 75%, based on the total weight of the product.
    Type: Application
    Filed: June 10, 2009
    Publication date: December 16, 2010
    Applicant: AMCOL INTERNATIONAL CORPORATION
    Inventors: Michael Donovan, Jason M. Logsdon, Keith Chappell