Patents by Inventor Mahesh Vithalbhai Patel

Mahesh Vithalbhai Patel 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).

  • Patent number: 7868173
    Abstract: The instant invention relates to novel prodrugs of optically pure benzoquinolizine-2-carboxylic acid and pharmaceutical compositions that include the prodrugs. In particular, the present invention relates to the sulfonic acid salts of L-alanine and L-valine prodrugs of S-(?)-9-fluoro-6,7-dihydro-8-(4-hydroxypiperidin-1-yl)-5-methyl-1-oxo-1H,5H-benzo[i,j]quinolizine-2-carboxylic acid. The compounds and compositions of the invention can be used to treat bacterial Gram-positive, Gram-negative and anaerobic infections, especially infections caused by resistant Gram-positive organism and Gram-negative organism, mycobacterial infections and emerging nosocomial pathogen infections.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: January 11, 2011
    Assignee: Wockhardt Limited
    Inventors: Mahesh Vithalbhai Patel, Vijaya Narayan Desai, Prasad Keshav Deshpande, Ravindra Dattatraya Yeole, Rajesh Prabhakar Kale
  • Publication number: 20100144735
    Abstract: The present invention provides agents having antimicrobial activity for preventing and treating infectious diseases. Thus, the present invention provides novel substituted piperidino phenyloxazolidinone derivatives, processes for making compounds as well as antimicrobial compositions containing said derivatives as active ingredients and methods of treating bacterial infections with the said derivatives.
    Type: Application
    Filed: February 12, 2010
    Publication date: June 10, 2010
    Inventors: Prasad Keshav Deshpande, Milind Dattatraya Sindkhedkar, Mahesh Shriram Phansalkar, Ravindra Dattatraya Yeole, Shrikant Vinayak Gupte, Yati Chugil, Nitin Shetty, Sachin Subhash Bhagwat, Milind Chintaman Shukla, Noel John De Souza, Mahesh Vithalbhai Patel
  • Publication number: 20100120721
    Abstract: The present invention relates to oxazolidinones of Formula I and pharmaceutically acceptable salts, pharmaceutically acceptable solvates or polymorphs thereof. The invention also relates to processes for the preparation of the compound of Formula I and pharmaceutically acceptable salts, pharmaceutically acceptable solvates or polymorphs thereof, and to pharmaceutical compositions containing the compounds of Formula I and pharmaceutically acceptable salts, pharmaceutically acceptable solvates or polymorphs thereof and to methods for treating or preventing microbial infections using the compounds of Formula I and pharmaceutically acceptable salts, pharmaceutically acceptable solvates or polymorphs thereof.
    Type: Application
    Filed: September 22, 2007
    Publication date: May 13, 2010
    Applicant: WOCKHARDT RESEARCH CENTRE
    Inventors: Vijaykumar Jadgishwar Patil, Mahesh Vithalbhai Patel, Bharat Kalidas Trivedi, Deepak Vijaykumar Dekhane, Mohammad Usman Shaikh, Yati Chugh, Rajesh Prabhakar Chavan, Mohammad Alam Jafri
  • Patent number: 7687627
    Abstract: The present invention provides agents having antimicrobial activity for preventing and treating infectious diseases. Thus, the present invention provides novel substituted piperidino phenyloxazolidinone derivatives, processes for making compounds as well as antimicrobial compositions containing said derivatives as active ingredients and methods of treating bacterial infections with the said derivatives.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: March 30, 2010
    Assignee: Wockhardt Limited
    Inventors: Prasad Keshav Deshpande, Milind Dattatraya Sindkhedkar, Mahesh Shriram Phansalkar, Ravindra Dattatraya Yeole, Shrikant Vinayak Gupte, Yati Chugh, Nitin Shetty, Sachin Subhash Bhagwat, Milind Chintaman Shukla, Noel John De Souza, Mahesh Vithalbhai Patel
  • Publication number: 20100056581
    Abstract: The present invention relates to certain substituted piperidino phenyloxazolidinones. Specifically, the invention relates to geminally disubstituted piperidino phenyloxazolidinones having antimicrobial activity with improved pharmacokinetic profile. The invention also relates to processes for the preparation of compounds of the present invention, pharmaceutical compositions containing the compounds of the present invention and the methods for treating or preventing microbial infections using the compounds of the present invention.
    Type: Application
    Filed: May 8, 2007
    Publication date: March 4, 2010
    Inventors: Mahesh Vithalbhai Patel, Mahesh Phansalkar, Vijaykumar Jagdishwar Patil, Milind Dattatraya Sindkhedkar, Prasad Keshav Deshpande
  • Patent number: 7626032
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: December 1, 2009
    Assignee: Wockhardt Limited
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Yati Chugh, Milind Chintaman Shukla
  • Publication number: 20090275552
    Abstract: The invention relates to an improved therapy for treating resistant bacterial infections caused by extended-spectrum ?-lactamase (ESBLs)-producing strains in a warm-blooded animal, adjuvant step down therapy, and pharmaceutical compositions for such therapies. The invention also relates to a method for inhibiting bacterial resistance in ESBLs-producing strains so as to have better control over the therapy; achieve reduced hospital stay and adjuvant step down therapy so as to avoid recrudescence. In particular, the therapy includes antibacterial combination of cefepime with sulbactam via parenteral route, followed by oral third generation cephalosporin with a suitable ? lactamase inhibitor.
    Type: Application
    Filed: April 27, 2007
    Publication date: November 5, 2009
    Inventors: Mahesh Vithalbhai Patel, Shrikant Vinayak Gupte, Sachin Subhash Bhagwat, Mohammad Alam Jafri, Girish Kumar Jain, Mandar Madhukar Kodgule
  • Publication number: 20090247478
    Abstract: The present invention provides compounds having antimicrobial activity for preventing and treating diseases caused by microbial infections. Thus, the present invention relates to novel semi-synthetic 11,12-? lactone macrolides and ketolides having antimicrobial activity, processes for making compounds as well as pharmaceutical compositions containing said compounds as active ingredients and methods of treating microbial infections with the compounds.
    Type: Application
    Filed: February 24, 2009
    Publication date: October 1, 2009
    Inventors: Milind Dattatraya Sindkhedkar, Vijaya Narayan Desai, Rajesh Maganlal Loriya, Mahesh Vithalbhai Patel, Bharat Kalidas Trivedi, Rajesh Onkardas Bora, Santosh Devidas Diwakar, Ganesh Rajaram Jadhav, Shivaji Sampatrao Pawar
  • Patent number: 7538221
    Abstract: A polymorphic forms of the hydrochloride salt and mesylate salt of racemic (±)-1-cyclopropyl-6-fluoro-8-methoxy-7-(4-amino-3,3-dimethylpiperidin-1-yl)-1,4-dihydro-4-oxo-quinoline-3-carboxylic acid, dextrorotatory R-(+)-1-cyclopropyl-6-fluoro-8-methoxy-7-(4-amino-3,3-dimethylpiperidin-1-yl)-1,4-dihydro-4-oxo-quinoline-3-carboxylic acid and S-(?)-1-cyclopropyl-6-fluoro-8-methoxy-7-(4-amino-3,3-dimethylpiperidin-1-yl)-1,4-dihydro-4-oxo-quinoline-3-carboxylic acid having formula (I) and (II) respectively are described. Processes for their preparation are also described. The invention further relates to methods of using, and pharmaceutical compositions comprising the compounds of the invention for treatment of bacterial infections in mammals.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: May 26, 2009
    Assignee: The Company of Wockhardt Limited
    Inventors: Prasad Keshav Deshpande, Satish Baliram Bhavsar, Yati Chugh, Ravindra Dattatrya Yeole, Noel John De Souza, Mahesh Vithalbhai Patel
  • Publication number: 20080214608
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Application
    Filed: April 24, 2008
    Publication date: September 4, 2008
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Yati Chugh, Milind Chintaman Shukla
  • Patent number: 7393957
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Grant
    Filed: September 20, 2004
    Date of Patent: July 1, 2008
    Assignee: Wockhardt Limited
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Yati Chugh, Milind Chintaman Shukla
  • Patent number: 7247642
    Abstract: The present invention relates to optically pure S-(?)-benzoquinolizine carboxylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof, substantially free of their R-(+)-isomers, to processes for preparation of the optically pure S-(?)-benzoquinolizine carboxylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof substantially free of their R-(+)-isomers, and to pharmaceutical compositions comprising the S(?)-benzoquinolizine carboxylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: July 24, 2007
    Assignee: Wockhardt Limited
    Inventors: Mahesh Vithalbhai Patel, Shivkumar Agarwal, Sreenivas Kandepu, Nitin Shetty, Dilip Jatashankar Upadhyay, Nishith Chandra Chaturvedi, Abraham Thomas, Noel John De Souza, Habil Fakhruddin Khorakiwala
  • Patent number: 7098219
    Abstract: Compounds are described which are efflux pump inhibitors of cellular efflux pumps of microbes. Also described are methods of preparing such compounds, methods of using such efflux pump inhibitor compounds and pharmaceutical compositions which include such compounds.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: August 29, 2006
    Assignee: Wockhart Limited
    Inventors: Noel John de Souza, Mahesh Vithalbhai Patel, Shrikant V Gupte, Dilip J Upadhyay, Milind Chintaman Shukla, Nishith C Chaturvedi, Satish B Bhawsar, Sheela Chandresekharan Nair, Mohammed A Jafri, Habil Fakhruddin Khorakiwala
  • Patent number: 6964966
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: November 15, 2005
    Assignee: Wockhardt Limited
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Shrikant V. Gupte, Dilip J. Upadhyay, Satish B. Bhawsar, Rupinder K. Beri, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Milind Chintaman Shukla, Yati Chugh, Nitin Shetty, Ravindra D. Yeole, M. Madhav Reddy
  • Patent number: 6878713
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: April 12, 2005
    Assignee: Wockhardt Limited
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Yati Chugh, Milind Chintaman Shukla
  • Patent number: 6750224
    Abstract: The present invention relates to optically pure S-(−)-benzoquinolizine carboxylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof, substantially free of their R-(+)-isomers, to processes for preparation of the optically pure S-(−)-benzoquinolizine carboxylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof substantially free of their R-(+)-isomers, and to pharmaceutical compositions comprising the S(−)-benzoquinolizine carboxylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: June 15, 2004
    Assignee: Wockhardt Limited
    Inventors: Mahesh Vithalbhai Patel, Shivkumar Agarwal, Sreenivas Kandepu, Nitin Shetty, Dilip Upadhyay, Nishith Chaturvedi, Abraham Thomas, Noel John De Souza, Habil Fakhruddin Khorakiwala
  • Publication number: 20030216568
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Application
    Filed: December 12, 2002
    Publication date: November 20, 2003
    Applicant: WOCKHARDT LIMITED
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Yati Chugh, Milind Chintaman Shukla
  • Publication number: 20030207908
    Abstract: The present invention relates to optically pure S-(−)-benzoquinolizlne carboxylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof, substantially free of their R-(+)-isomers, to processes for preparation of the optically pure S-(−)-benzoquinoluzie carboylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof substantlly free of their R-(+)-isomers, and to pharmaceutical compositions comprising the S(+)-benzoquinolizie carboxylic acids, their derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof.
    Type: Application
    Filed: May 8, 2000
    Publication date: November 6, 2003
    Inventors: Mahesh Vithalbhai Patel, Shivkumar Agarwal, Sreenivas Kandepu, Nitin Shetty, Dilip Jatashankar Upadhyay, Nishith Chandra Chaturvedi, Abraham Thomas, Noel John De Souza, Habil Fakhruddin Khorakiwala
  • Patent number: 6608078
    Abstract: The present invention relates to optically pure 8-(substituted piperidino)-benzo[i,j]quinolizines, their isomers, derivatives, salts, pseudopolymorphs, polymorphs prodrugs and hydrates thereof, to processes for their preparation, and to pharmaceutical compositions comprising 8-(substituted piperidino)-benzo[i,j]quinolizines their isomers, derivatives, salts, pseudopolymorphs, polymorphs and hydrates thereof. These compounds and compositions possess potent activity in treating local and systemic infections, particularly infections caused by sensitive and resistant Gram-positive organism infections, Gram-negative organism infections, mycobacterial infections and nosocomial pathogens, and particularly those belonging to the staphylococcus, streptococcus and enterococcus groups. Methods for treating the diseases and disorders arising from the foregoing infections in humans and animals are described by administering the compounds of the invention to said humans and animals.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: August 19, 2003
    Assignee: Wockhardt Limited
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Shiv Kumar Agarwal, Shirkant V Gupte, Dilip J Upadhyay, Satish B Bhawsar, Mohammad A Jafri
  • Publication number: 20030096812
    Abstract: This invention relates to new generation triple-targeting, chiral, broad-spectrum antimicrobial 7-substituted piperidino-quinolone carboxylic acid derivatives, to their optical isomers, diastereomers or enantiomers, as well as pharmaceutically acceptable salts, hydrates, prodrugs, polymorphs and pseudopolymorphs thereof, to their preparation, to their compositions and to their use.
    Type: Application
    Filed: April 23, 2002
    Publication date: May 22, 2003
    Applicant: WOCKHARDT LIMITED
    Inventors: Noel John De Souza, Mahesh Vithalbhai Patel, Prasad Keshav Deshpande, Shiv Kumar Agarwal, Shrikant V. Gupte, Dilip J. Upadhyay, Satish B. Bhawsar, Rupinder K. Beri, Kandepu Sreenivas, Sheela Chandrasekharan Nair, Milind Chintaman Shukla, Yati Chugh, Nitin Shetty, Ravindra D. Yeole, M. Madhav Reddy