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:
Nov. 10, 2009
Filed:
May. 20, 2004
Applicants:
Peter D. Phelps, Schenectady, NY (US);
Timothy A. Thompson, Clifton Park, NY (US);
Yi-feng Wang, Waterford, NY (US);
Donald G. Le Grand, Burnt Hills, NY (US);
Inventors:
Peter D. Phelps, Schenectady, NY (US);
Timothy A. Thompson, Clifton Park, NY (US);
Yi-Feng Wang, Waterford, NY (US);
Donald G. Le Grand, Burnt Hills, NY (US);
Assignee:
Cyclics Corporation, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 23/00 (2006.01); C07D 323/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Organo-titanate catalysts are prepared that are useful to catalyze depolymerization of a polyester to produce macrocyclic oligoesters substantially free from macrocyclic co-oligoesters.