Patents by Inventor Savannah Cassin

Savannah Cassin 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).

  • Branched polymers
    Patent number: 12291590
    Abstract: Responsive or degradable branched polymers may be prepared by the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The multivinyl monomer may comprise a cleavable group, for example an ester, or a multiplicity of such groups, between two vinyl groups. Said monomer may be a macromonomer containing multiple cleavage sites.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: May 6, 2025
    Assignee: THE UNIVERSITY OF LIVERPOOL
    Inventors: Steven Rannard, Pierre Chambon, Savannah Cassin
  • BRANCHED POLYMERS
    Publication number: 20220002460
    Abstract: Responsive or degradable branched polymers may be prepared by the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The multivinyl monomer may comprise a cleavable group, for example an ester, or a multiplicity of such groups, between two vinyl groups. Said monomer may be a macromonomer containing multiple cleavage sites.
    Type: Application
    Filed: October 31, 2019
    Publication date: January 6, 2022
    Applicant: The University of Liverpool
    Inventors: Steven Rannard, Pierre Chambon, Savannah Cassin
  • BRANCHED POLYMERS
    Publication number: 20200190237
    Abstract: A method of preparing a branched polymer comprises the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The average length of each vinyl polymer chain within the product is short.
    Type: Application
    Filed: April 26, 2018
    Publication date: June 18, 2020
    Applicant: The University of Liverpool
    Inventors: Steve Rannard, Pierre Chambon, Savannah Cassin
  • POLYMERS
    Publication number: 20200181335
    Abstract: A method of preparing a polymer comprises the use of free radical vinyl polymerisation to form carbon-carbon backbone segments of the polymer, wherein the longest chains in the polymer comprise vinyl polymer chains interspersed with other chemical groups and/or chains. The product has the characteristics of a step-growth polymer comprising a mixture of polyfunctional step-growth monomer residues formed by vinyl polymerization.
    Type: Application
    Filed: April 26, 2018
    Publication date: June 11, 2020
    Applicant: The University of Liverpool
    Inventors: Steve Rannard, Pierre Chambon, Savannah Cassin