Patents by Inventor Kalaiselvan Ramaraju

Kalaiselvan Ramaraju 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).

  • Capsule dosage form of metoprolol succinate
    Patent number: 9504655
    Abstract: The present invention provides an extended-release capsule dosage form of metoprolol succinate in the form of coated discrete units and processes for their preparation.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: November 29, 2016
    Assignee: SUN PHARMACEUTICAL INDUSTRIES LIMITED
    Inventors: Sandeep Kumar Vats, Balaram Mondal, Kalaiselvan Ramaraju, Romi Barat Singh
  • DUAL-CHAMBER PACK FOR EXTENDED RELEASE SUSPENSION COMPOSITIONS
    Publication number: 20160317388
    Abstract: The present invention relates to a dual-chamber pack comprising a first chamber prefilled with a suspension base and a second chamber prefilled with a powder for suspension comprising an active ingredient, wherein upon activation of the dual-chamber pack, the contents of both the chambers are mixed to form an extended release suspension composition which is characterized by having no substantial change in the in-vitro dissolution release profile of the active ingredient upon storage for at least seven days.
    Type: Application
    Filed: May 2, 2016
    Publication date: November 3, 2016
    Inventors: Rahul BHARGAVA, Bhupesh Kumar MITTAL, Kalaiselvan RAMARAJU, Ashish KUMAR
  • EXTENDED-RELEASE PHARMACEUTICAL COMPOSITIONS OF METOPROLOL
    Publication number: 20160143864
    Abstract: The present invention relates to timed extended-release pharmaceutical compositions comprising metoprolol and an extended-release polymer. The pharmaceutical compositions of the present invention exhibit an in-vivo lag time of at least 2 hours as and a Tmax of more than 8 hours. Further, said pharmaceutical compositions provide an in-vitro release of metoprolol over a period of at least 20 hours.
    Type: Application
    Filed: July 9, 2014
    Publication date: May 26, 2016
    Inventors: Sandeep Kumar VATS, Balaram MONDAL, Kalaiselvan RAMARAJU, Romi Barat SINGH, Ajay Kumar SINGLA
  • CAPSULE DOSAGE FORM OF METOPROLOL SUCCINATE
    Publication number: 20160143856
    Abstract: The present invention provides an extended-release capsule dosage form of metoprolol succinate in the form of coated discrete units and processes for their preparation.
    Type: Application
    Filed: February 1, 2016
    Publication date: May 26, 2016
    Inventors: Sandeep Kumar VATS, Balaram MONDAL, Kalaiselvan RAMARAJU, Romi Barat SINGH
  • DISSOLUTION ENHANCED CONTROLLED DRUG DELIVERY SYSTEM FOR POORLY WATER SOLUBLE DRUGS
    Publication number: 20150174071
    Abstract: The present invention relates to controlled-release pharmaceutical dosage forms comprising a solid dispersion of a poorly water-soluble or insoluble drug with improved solubility and thus improved dissolution in an aqueous medium. The invention further discloses a process of preparation of these controlled-release dosage forms.
    Type: Application
    Filed: August 1, 2012
    Publication date: June 25, 2015
    Applicant: Ranbaxy Laboratories Limited
    Inventors: Sandeep Kumar Vats, Kalaiselvan Ramaraju, Romi Barat Singh
  • PHARMACEUTICAL COMPOSITIONS CONTAINING A BIGUANIDE AND A LOW DOSE ANTIDIABETIC AGENT
    Publication number: 20130251795
    Abstract: The present invention relates to pharmaceutical compositions that include a combination of a biguanide present in an extended-release form and a low dose antidiabetic agent present in an immediate-release form. The present invention further relates to processes for preparing such compositions.
    Type: Application
    Filed: May 13, 2013
    Publication date: September 26, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sandeep Kumar VATS, Balaram MONDAL, Kalaiselvan RAMARAJU, Romi Barat SINGH, Ajay Kumar SINGLA
  • PHARMACEUTICAL COMPOSITIONS CONTAINING A BIGUANIDE AND A THIAZOLIDINEDIONE
    Publication number: 20120093878
    Abstract: The present invention relates to pharmaceutical compositions that include a combination of a biguanide present in an extended-release form and a thiazolidinedione present in an immediate-release form. The present invention further relates to the processes for preparing such compositions.
    Type: Application
    Filed: July 29, 2011
    Publication date: April 19, 2012
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Romi Barat SINGH, Kalaiselvan RAMARAJU, Sandeep Kumar VATS, Balaram MONDAL
  • MULTILAYERED MODIFIED RELEASE FORMULATION COMPRISING AMOXICILLIN AND CLAVULANATE
    Publication number: 20110020408
    Abstract: The present invention relates to multilayered modified release formulation comprising amoxicillin and clavulanate, process of preparation thereof and method of treating bacterial infection using these formulations. The multilayered modified release formulation comprises: an immediate release layer comprising amoxicillin and clavulanate; and a slow release layer comprising amoxicillin and one or more release retarding agents; and one or more non-release controlling inert barrier layers placed in between the immediate release layer and the slow release layer and comprising one or more pharmaceutically acceptable excipients.
    Type: Application
    Filed: May 16, 2008
    Publication date: January 27, 2011
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Kalaiselvan Ramaraju, Rajan Kumar Verma, Ashok Rampal