The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2026
Filed:
Oct. 24, 2022
Applicant:
Northwestern University, Evanston, IL (US);
Inventors:
Yosi Kratish, Evanston, IL (US);
Tobin J. Marks, Evanston, IL (US);
Assignee:
Northwestern University, Evanston, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 11/16 (2006.01); C08J 11/10 (2006.01);
U.S. Cl.
CPC ...
C08J 11/16 (2013.01); C08J 2367/02 (2013.01);
Abstract
Provided are methods for depolymerizing polyesters, e.g., PET, PBT, and PEN. In embodiments, a method for depolymerizing a polyester comprises combining a polyester comprising a plurality of ester linking groups (R'C(O)OR), a metal triflate catalyst, and a hydrogenation catalyst, under conditions to cleave a C—O bond in an alkoxy group (OR) of an ester linking group of the plurality of ester linking groups.
Kratish, Yosi. (2026). Polyester hydrogenolytic deconstruction via tandem catalysis (U.S. Patent No. 12577365). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12577365
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile