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:
Sep. 19, 2023
Filed:
Jan. 10, 2022
Applicant:
Navinta, Llc, Ewing, NJ (US);
Inventors:
Chiragkumar Anilkumar Bhatt, Vadodara, IN;
Keyurkumar Amrutla Pandya, Vadodara, IN;
Pankaj Vasudev Parmar, Vadodara, IN;
John Muthiah Raja Jeyakumar, Vadodara, IN;
Assignee:
Navinta, LLC, Ewing, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 237/14 (2006.01);
U.S. Cl.
CPC ...
C07D 237/14 (2013.01);
Abstract
An improved process for the preparation of high purity Levosimendan includes treatment of Levosimendan crude with an organic acid, adding an organic acid to precipitate Levosimendan and isolating pure Levosimendan from the precipitate. Levosimendan obtained by the improved process is pharmaceutically acceptable with no impurity higher than 0.2 percent.