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:
Oct. 29, 2013
Filed:
Mar. 05, 2009
Subhakar Dey, Billerica, MA (US);
Darryl J. C. Pappin, Boxborough, MA (US);
Subhasish Purkayastha, Acton, MA (US);
Sasi Pillai, Littleton, MA (US);
James M. Coull, Westford, MA (US);
Subhakar Dey, Billerica, MA (US);
Darryl J. C. Pappin, Boxborough, MA (US);
Subhasish Purkayastha, Acton, MA (US);
Sasi Pillai, Littleton, MA (US);
James M. Coull, Westford, MA (US);
DH Technologies Development Pte. Ltd., Singapore, SG;
Abstract
In some embodiments, this invention pertains to active esters of N-substituted piperazine acetic acid, including isotopically enriched versions thereof. In some embodiments, this invention pertains to methods for the preparation of active esters of N-substituted piperazine acetic acid, including isotopically enriched versions thereof.