Patents by Inventor Mohan Prasad

Mohan Prasad 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).

  • Crystalline forms of bosentan salts and processes for their preparation
    Patent number: 8716477
    Abstract: The present invention relates to crystalline forms of bosentan salts and processes for their preparation.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: May 6, 2014
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Rakesh Singh, Anu Mittal, Gopal Singh Bisht, Mahavir Singh Khanna, Rajesh Kumar Thaper, Mohan Prasad
  • Process for the preparation of orlistat
    Patent number: 8680298
    Abstract: The present invention provides a process for preparing orlistat from amino orlistat using Pivaloyl Formic Anhydride (PFA) as an alkanoylating agent.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: March 25, 2014
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Patil Dattatray Bapuso, Killol Patel, Ashok Prasad, Keshav Deo, Mohan Prasad
  • Sorafenib dimethyl sulphoxide solvate
    Patent number: 8618305
    Abstract: The present invention provides dimethyl sulphoxide solvate of 4-(4-{3-[4-chloro-3 -(trifluoromethyl)phenyl]ureido}phenoxy)-N2-methylpyridine-2-carboxamide, process for its preparation, pharmaceutical composition comprising it and its use for the treatment of cancer. The present invention also provides a novel HPLC method for the identification, quantification and isolation of related substances of sorafenib.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 31, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Jagdev Singh Jaryal, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad, Sachin Deorao Zade, Ajay Shankar Singh
  • Polymorphs of sorafenib acid addition salts
    Patent number: 8614329
    Abstract: The present invention provides amorphous and crystalline forms of acid addition salts of sorafenib, pharmaceutical compositions comprising them, and their use for the treatment of cancer. The present invention also provides processes for the preparation of acid addition salts of sorafenib.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: December 24, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Jagdev Singh Jaryal, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • Process for the preparation of sorafenib tosylate
    Patent number: 8609854
    Abstract: The present invention provides a process for the preparation of sorafenib tosylate, comprising contacting sorafenib free base with p-toluenesulphonic acid in water.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: December 17, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Jagdev Singh Jaryal, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • Polymorphs of sorafenib acid addition salts
    Patent number: 8604208
    Abstract: The present invention provides amorphous and crystalline forms of acid addition salts of sorafenib, pharmaceutical compositions comprising them and their use for the treatment of cancer. The present invention also provides processes for the preparation of acid addition salts of sorafenib.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: December 10, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Jagdev Singh Jaryal, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • POLYMORPHS OF SORAFENIB ACID ADDITION SALTS
    Publication number: 20130274478
    Abstract: The present invention provides amorphous and crystalline forms of acid addition salts of sorafenib, pharmaceutical compositions comprising them, and their use for the treatment of cancer. The present invention also provides processes for the preparation of acid addition salts of sorafenib.
    Type: Application
    Filed: June 7, 2013
    Publication date: October 17, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Jagdev Singh JARYAL, Swargam SATHYANARAYANA, Rajesh Kumar THAPER, Mohan PRASAD
  • Sorafenib ethylsulfonate salt, process for preparation and use
    Patent number: 8552197
    Abstract: The present invention provides sorafenib ethane sulphonate, process for its preparation, pharmaceutical composition comprising sorafenib ethane sulphonate and its use for the treatment of cancer. Formula (III).
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: October 8, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Jagdev Singh Jaryal, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF FEBUXOSTAT
    Publication number: 20130245278
    Abstract: An improved and efficient process for the preparation of 2-[3-cyano-4-(2-methylpropoxy)phenyl]-4-methylthiazole-5-carboxylic acid (febuxostat) that is substantially free from amide by-product is provided.
    Type: Application
    Filed: July 15, 2011
    Publication date: September 19, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Pranab Chatterjee, Asok Nath, Sarbjot Singh Sokhi, Mohan Prasad
  • CRYSTALLINE FORMS OF L-MALIC ACID SALT OF SUNITINIB
    Publication number: 20130210885
    Abstract: The present invention relates to crystalline forms of L-malic acid salt of sunitinib and its preparation. The crystalline forms of the present invention are designated as Form V and Form VI of L-malic acid salt of sunitinib. Formula (I).
    Type: Application
    Filed: January 28, 2011
    Publication date: August 15, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh Sanwal, Saridi Madhava Dileep Kumar, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • SORAFENIB DIMETHYL SULPHOXIDE SOLVATE
    Publication number: 20130210865
    Abstract: The present invention provides dimethyl sulphoxide solvate of 4-(4-{3-[4-chloro-3-(trifluoromethyl)phenyl]ureido}phenoxy)-N2-methylpyridine-2-carboxamide, process for its preparation, pharmaceutical composition comprising it and its use for the treatment of cancer. The present invention also provides a novel HPLC method for the identification, quantification and isolation of related substances of sorafenib.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 15, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Jagdev Singh Jaryal, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad, Sachin Deorao Zade, Ajay Shankar Sinch
  • PROCESS FOR THE PREPARATION OF DEXLANSOPRAZOLE
    Publication number: 20130204002
    Abstract: The present invention relates to a process for the preparation of crystalline dexlansoprazole.
    Type: Application
    Filed: March 29, 2011
    Publication date: August 8, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Anu Mittal, Anmol Kumar Ray, Mahavir Singh Khanna, Rajesh Kumar Thaper, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF CRYSTALLINE FORMS OF DEXLANSOPRAZOLE
    Publication number: 20130197232
    Abstract: The present invention relates to crystalline forms of dexlansoprazole designated as forms A and B, and their preparation. The present invention further relates to processes for the preparation of anhydrous dexlansoprazole and dexlansoprazole sesquihydrate using crystalline Forms A and B of dexlansoprazole.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 1, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Anmol Kumar Ray, Mahavir Singh Khanna, Rajesh Kumar Thaper, Mohan Prasad
  • SALTS OF DEXLANSOPRAZOLE AND THEIR PREPARATION
    Publication number: 20130197233
    Abstract: The present invention relates to the salts of dexlansoprazole in amorphous form. The present invention further relates to processes for the preparation of salts of dexlansoprazole.
    Type: Application
    Filed: March 29, 2011
    Publication date: August 1, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Anu Mittal, Anmol Kumar Ray, Mahavir Singh Khanna, Rajesh Kumar Thaper, Mohan Prasad
  • Process for the preparation of sterile doripenem
    Patent number: 8445673
    Abstract: The present invention relates to a process for the preparation of sterile doripenem.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: May 21, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Vinod George, Hashim Nizar Poovanathil Nagoor Meeran, Neera Tiwari, Mohan Prasad
  • Process for the preparation of an intermediate of tadalafil
    Patent number: 8445698
    Abstract: The present invention relates to a process for the preparation of cis-intermediate of Formula II, which is useful synthetic intermediates in the preparation of tadalafil.
    Type: Grant
    Filed: June 28, 2008
    Date of Patent: May 21, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Dattatray B. Patil, Killol Patel, Ashok Prasad, Mohan Prasad
  • PROCESS FOR THE DIRECT PREPARATION OF MALIC ACID SALT OF SUNITINIB
    Publication number: 20130123511
    Abstract: The present invention relates to a process for the direct preparation of malic acid salt of sunitinib.
    Type: Application
    Filed: February 25, 2011
    Publication date: May 16, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh Sanwal, Saridi Madhava Dileep Kumar, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • Process for the preparation of erlotinib or its pharmaceutically acceptable salts thereof
    Patent number: 8440823
    Abstract: The present invention relates to a process for preparation of erlotinib of Formula I or its pharmaceutically acceptable salt thereof. The present invention also relates to process for the preparation of erlotinib trifluoroacetate. The present invention also relates to a nove-ICrystalline form of erlotinib trifluoroacetate designated as Form E and process for its preparation. The present invention further relates to process for the preparation of erlotinib hydrochloride from erlotinib trifluoroacetate.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: May 14, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Balaguru Murugesan, Anandam Vempali, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • Barium salt of benzimidazole derivative
    Patent number: 8415478
    Abstract: The invention relates to crystalline barium salt of (S)-omeprazole, which is (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole. The invention also relates to processes for preparing crystalline barium salt of (S)-omeprazole and pharmaceutical compositions that include the crystalline barium salt of (S)-omeprazole so prepared.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: April 9, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Yatendra Kumar, Mahavir Singh Khanna, Mohan Prasad
  • Barium salt of benzimidazole derivative
    Patent number: 8404854
    Abstract: The invention relates to crystalline barium salt of (S)-omeprazole, which is (S)-5-methoxy-2-[[(4-methoxy-3,5-dimethyl-2-pyridinyl)-methyl]sulfinyl]-1H-benzimidazole. The invention also relates to processes for preparing crystalline barium salt of (S)-omeprazole and pharmaceutical compositions that include the crystalline barium salt of (S)-omeprazole so prepared.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: March 26, 2013
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Yatendra Kumar, Mahavir Singh Khanna, Mohan Prasad