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:
Jan. 13, 2026
Filed:
Nov. 27, 2019
Applicant:
Natco Pharma Limited, Hyderabad, IN;
Inventors:
Prabhakar Divya, Hyderabad, IN;
Srinivasu Kasa, Hyderabad, IN;
Durga Prasad Konakanchi, Hyderabad, IN;
Ramesh Dandala, Hyderabad, IN;
Pulla Reddy Muddasani, Hyderabad, IN;
Venkaiah Chowdary Nannapaneni, Hyderabad, IN;
Assignee:
Natco Pharma Limited, Hyderabad, IN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 493/22 (2006.01); C07C 311/19 (2006.01);
U.S. Cl.
CPC ...
C07D 493/22 (2013.01); C07C 311/19 (2013.01);
Abstract
The present invention relates to a process for the preparation of high pure Eribulin and Eribulin Mesylate. The present invention involves preparation of high pure Eribulin and its mesylate salt involving chiral acid addition salts of Eribulin.