Patents by Inventor Nagaraju Chakilam

Nagaraju Chakilam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of 2-{4-[(5,6-diphenyl pyrazin-2-yl)(isopropyl)amino]butoxy}-N-(methylsulfonyl)acetamide and novel polymorphs thereof
    Patent number: 10544107
    Abstract: The present invention relates to a processes for the preparation of 2-{4-[(5,6-diphenyl pyrazin-2-yl)(isopropyl)amino]butoxy}-N-(methylsulfonyl)acetamide compound of formula-1 and novel polymorphs thereof.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: January 28, 2020
    Assignee: MAITHRI DRUGS PRIVATE LIMITED
    Inventors: Nagaraju Chakilam, Kondana Ramprasad Achampeta, Pradeep Rebelli, Tavitayya Kondaka
  • NOVEL PROCESS FOR THE PREPARATION OF 2-{4-[(5,6-DIPHENYL PYRAZIN-2-YL)(ISOPROPYL)AMINO]BUTOXY}-N-(METHYLSULFONYL)ACETAMIDE AND NOVEL POLYMORPHS THEREOF
    Publication number: 20190152927
    Abstract: The present invention relates to a processes for the preparation of 2-{4-[(5,6-diphenyl pyrazin-2-yl)(isopropyl)amino]butoxy}-N-(methylsulfonyl)acetamide compound of formula-1 and novel polymorphs thereof.
    Type: Application
    Filed: June 30, 2017
    Publication date: May 23, 2019
    Inventors: Nagaraju CHAKILAM, Kondana Ramprasad ACHAMPETA, Pradeep REBELLI, Tavitayya KONDAKA
  • Crystalline forms VI and VII of Atorvastatin calcium
    Patent number: 7074818
    Abstract: The present invention relates to novel crystalline forms of atorvastatin calcium and to the methods of their production and isolation. More specifically, the present invention relates to novel Forms VI and VII of R—(R*,R*)]-2(4-fluorophenyl)-B,d dihydroxy-5(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1-H-pyrrole-1-heptanoic- acid calcium salt and hydrates thereof and to methods of their preparation.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: July 11, 2006
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Satyanarayana Reddy Manne, Nagaraju Chakilam, Srinivasulu Gudipati, Srinivas Katkam, Rajeswar Reddy Sagyam