Patents by Inventor Sandra KAABEL

Sandra KAABEL 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).

  • Mechanoenzymatic degradation of polymers
    Patent number: 12344880
    Abstract: A method of depolymerizing a polymer by combining together the polymer with an enzyme (a hydrolytic enzyme capable of catalyzing cleavage of said (CO)—O bond of an ester or carbonate linkage of the polymer) and an aqueous liquid to provide a reaction mixture. The polymer comprises a (CO)—O bond of an ester or carbonate linkage. The reaction mixture defines a ratio eta (?) of liquid volume, in ?L, to total solids, in mg, that is less than 2 ?L/mg. Then, allowing an enzyme-catalyzed reaction of the enzyme with the polymer to take place thereby forming a reaction product.
    Type: Grant
    Filed: October 27, 2020
    Date of Patent: July 1, 2025
    Assignee: THE ROYAL INSTITUTION FOR THE ADVANCEMENT OF LEARNING / MCGILL UNIVERSITY
    Inventors: Karine Auclair, Tomislav Friščić, Sandra Kaabel, James Patrick Therien
  • MECHANOENZYMATIC DEGRADATION OF POLYMERS
    Publication number: 20220403422
    Abstract: A method of depolymerizing a polymer by combining together the polymer with an enzyme (a hydrolytic enzyme capable of catalyzing cleavage of said (CO)—O bond of an ester or carbonate linkage of the polymer) and an aqueous liquid to provide a reaction mixture. The polymer comprises a (CO)—O bond of an ester or carbonate linkage. The reaction mixture defines a ratio eta (?) of liquid volume, in ?L, to total solids, in mg, that is less than 2 ?L/mg. Then, allowing an enzyme-catalyzed reaction of the enzyme with the polymer to take place thereby forming a reaction product.
    Type: Application
    Filed: October 27, 2020
    Publication date: December 22, 2022
    Inventors: Karine AUCLAIR, Tomislav FRISCIC, Sandra KAABEL, James Patrick THERIEN