Patents by Inventor Vishnubhotla Nagaprasad

Vishnubhotla Nagaprasad 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: 8911787
    Abstract: The present invention relates to stable oral compositions of one or more benzimidazole compounds and processes for their preparation. Also provided are methods for treating various gastrointestinal disorders.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: December 16, 2014
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Rajesh Gandhi, Chayapathy Issa, Vishnubhotla Nagaprasad
  • Publication number: 20140134259
    Abstract: The present invention relates to stable oral compositions of one or more benzimidazole compounds and processes for their preparation. Also provided are methods for treating various gastrointestinal disorders.
    Type: Application
    Filed: January 8, 2014
    Publication date: May 15, 2014
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Rajesh GANDHI, Chayapathy ISSA, Vishnubhotla NAGAPRASAD
  • Patent number: 8658216
    Abstract: The present invention relates to stable oral compositions of one or more benzimidazole compounds and processes for their preparation. Also provided are methods for treating various gastrointestinal disorders.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: February 25, 2014
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Rajesh Gandhi, Chayapathy Issa, Vishnubhotla Nagaprasad
  • Publication number: 20090162449
    Abstract: The present invention relates to stable oral compositions of one or more benzimidazole compounds and processes for their preparation. Also provided are methods for treating various gastrointestinal disorders.
    Type: Application
    Filed: December 22, 2005
    Publication date: June 25, 2009
    Inventors: Rajesh Gandhi, Chayapathy Issa, Vishnubhotla Nagaprasad
  • Publication number: 20080305158
    Abstract: The present invention relates to pharmaceutical compositions comprising amlodipine and pharmaceutically acceptable salts thereof, and atorvastatin and pharmaceutically acceptable salts thereof, and processes for their preparation.
    Type: Application
    Filed: December 22, 2005
    Publication date: December 11, 2008
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Shrikant S. Chaudhari, Romi Barat Singh, Vishnubhotla Nagaprasad
  • Publication number: 20080279951
    Abstract: The present invention relates to processes for the preparation of stable oral compositions of benzimidazole compounds prepared using a non-aqueous layering process.
    Type: Application
    Filed: February 2, 2006
    Publication date: November 13, 2008
    Inventors: Rajesh Gandhi, Ramesh Muttavarpu, Venkata Ram Mohan Rao Visinigiri, Vishnubhotla Nagaprasad
  • Publication number: 20080268049
    Abstract: The technical field of the invention relates to stable solid dosage forms of amlodipine besylate and benazepril hydrochloride; and processes for their preparation. In particular, the solid dosage forms having reduced levels of 3-ethyl methyl [(2-aminoethoxy)methyl](2-chlorophenyl)methylpyridine-3,5 dicarboxylate (“impurity D”) and total impurities when free of dicalcium phosphate.
    Type: Application
    Filed: February 10, 2006
    Publication date: October 30, 2008
    Inventors: Mona Dhaliwal, V.V. Ram Mohan Rao, Vishnubhotla Nagaprasad
  • Publication number: 20080268034
    Abstract: The present invention relates to solid oral dosage forms of ziprasidone and salts thereof and processes for their preparation, containing colloidal silicon dioxide.
    Type: Application
    Filed: January 6, 2006
    Publication date: October 30, 2008
    Inventors: Girish Karanth, Romi Barat Singh, Vishnubhotla Nagaprasad
  • Publication number: 20080044468
    Abstract: The present invention relates to a method for the preparation of bioavailable dosage form of modafinil.
    Type: Application
    Filed: July 24, 2003
    Publication date: February 21, 2008
    Inventors: Romi Barat Singh, Pananchukunnath Manoj Kumar, Vishnubhotla Nagaprasad, Sunilendu Bhshan Roy, Rajiv Malik
  • Publication number: 20070292499
    Abstract: The present invention relates to a process for the preparation of solid dosage forms of amorphous valganciclovir hydrochloride by dry method.
    Type: Application
    Filed: March 10, 2005
    Publication date: December 20, 2007
    Inventors: Romi Singh, Vishnubhotla Nagaprasad, Nidhi Singh
  • Publication number: 20070167380
    Abstract: A pharmaceutical composition includes erythromycin A or a derivative thereof and alginic acid. The alginic acid provides taste masking of the erythromycin A or derivative. The erythromycin A derivative may be clarithromycin and the alginic acid may be one or both of alginic acid and its salt. The salt may be one or more of sodium alginate and calcium alginate. The pharmaceutical composition may further include one or more of a binder, a disintegrant, a flavoring agent, and a coating. The pharmaceutical composition also may include one or more active ingredients, including omeprazole, metronidazole, amoxicillin, rifampicin, lansoprazole, ciprofloxacin, ethambutol, and ritonavir. The erythromycin A or a derivative thereof and the one or more active ingredients may be combined in a single pharmaceutical composition.
    Type: Application
    Filed: April 3, 2003
    Publication date: July 19, 2007
    Inventors: Rahul Dabre, Vishnubhotla Nagaprasad, Rajiv Malik
  • Patent number: 7115281
    Abstract: The invention relates to processes for preparing, and pharmaceutical compositions of, modafinil dosage forms for oral administration. The dosage forms include a mixture of coarse and fine particles of modafinil. The process for preparing modafinil oral dosage forms includes forming a dosage form that includes about 7%–25% by weight of modafinil particles having diameters greater than 220 ?m and about 75%–93% by weight of modafinil particles having diameters less than 220 ?m.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: October 3, 2006
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Romi Barat Singh, Pannanchukunnath Manoj Kumar, Vishnubhotla Nagaprasad, Sunilendu Bhushan Roy, Rajiv Malik
  • Publication number: 20060210620
    Abstract: The technical field of the invention relates to spray dried, co-precipitate amorphous losartan dosage forms that are stable over time and processes for their preparation. The processes stabilize the amorphous losartan. The process includes preparing an aqueous solution of losartan and one or more hydrophilic polymers; and spray drying the aqueous solution of losartan and one or more hydrophilic polymers to form a mixture. The amorphous losartan and one or more hydrophilic polymers are co-precipitated from the aqueous solution.
    Type: Application
    Filed: January 21, 2004
    Publication date: September 21, 2006
    Inventors: Pannanchukunnath Kumra, Ramalingam Manikandan, Romi Singh, Vishnubhotla Nagaprasad
  • Publication number: 20060002997
    Abstract: The present invention generally relates to controlled release dosage forms which provide immediate release and sustained release of nitrofurantoin, and processes for their preparation. The controlled release dosage form includes a sustained release portion and an immediate release portion. The sustained release portion includes nitrofurantoin and one or more pH dependent hydrophilic polymers. The immediate release portion includes nitrofurantoin.
    Type: Application
    Filed: August 25, 2003
    Publication date: January 5, 2006
    Inventors: Puneet Shamar, Pananchukunnath Kumar, Vishnubhotla Nagaprasad, Sunilendu Roy, Rajiv Malik
  • Publication number: 20050202081
    Abstract: The invention provides stable pharmaceutical compositions comprising ACE inhibitor(s) and other pharmaceutically active substances which are susceptible to degradation, as well as processes for the preparation thereof, and methods of treatment involving administration of such compositions.
    Type: Application
    Filed: January 14, 2003
    Publication date: September 15, 2005
    Inventors: Deepak Bahl, Ravi Kochhar, Puneet Sharma, Vishnubhotla Nagaprasad, Rajeev Mathur, Kamal Mehta
  • Publication number: 20040167225
    Abstract: The invention relates to processes for preparing, and pharmaceutical compositions of, modafinil dosage forms for oral administration. The dosage forms include a mixture of coarse and fine particles of modafinil. The process for preparing modafinil oral dosage forms includes forming a dosage form that includes about 7%-25% by weight of modafinil particles having diameters greater than 220 &mgr;m and about 75%-93% by weight of modafinil particles having diameters less than 220 &mgr;m.
    Type: Application
    Filed: July 8, 2003
    Publication date: August 26, 2004
    Inventors: Romi Bharat Singh, Pannanchukunnath Manoj Kumar, Vishnubhotla Nagaprasad, Sunilendu Bhushan Roy, Rajiv Malik
  • Publication number: 20040157925
    Abstract: The present invention relates to a stable pharmaceutical composition comprising pravastatin or its pharmaceutically acceptable salts and a carrier, which imparts a pH between 6.5 and 8.5 to an aqueous dispersion of said composition. The invention also relates to a process for making the pharmaceutical composition.
    Type: Application
    Filed: April 12, 2004
    Publication date: August 12, 2004
    Inventors: Vishnubhotla Nagaprasad, Rajiv Malik
  • Patent number: 6074669
    Abstract: A pharmaceutical composition in the form of a tablet or a capsule for the controlled release of diltiazem, comprises about 30 to about 97% by weight of a hydrophilic polymer, about 0.5 to about 30% by weight of an enteric (pH-dependent) polymer, and about 2.5 to about 60% by weight of diltiazem or a pharmaceutically acceptable salt or ester thereof. The ratio of hydrophilic polymer to enteric polymer is in the range of about 1:1 to about 15:1. Such a pharmaceutical composition releases diltiazem at a rate that allows effective plasma levels of diltiazem to be maintained over a period of twenty-four hours after administration to human adult subjects.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: June 13, 2000
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Vishnubhotla Nagaprasad, Himadri Sen