Patents by Inventor Ishari Piya

Ishari Piya 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: 9622967
    Abstract: Disclosed are highly stable compositions having outstanding storage stability and/or demonstrating exceptional resistance to aqueous solution degradation, the composition including an orally active nucleotide analog or an orally active nucleotide analog prodrug, which is orally bioavailable, such as adefovir dipivoxil and tenofovir disoproxil. For example, when a composition of the invention is stored for 1 month or for 18 months at 25° C. and 60% relative humidity, its orally active nucleotide analog or orally active nucleotide analog prodrug degrades to provide a composition containing no more than 0.2% or no more than 0.7% by weight of a less orally bioavailable impurity, respectively. Also disclosed are a container/closure package system including the composition and a package insert and methods of manufacturing the composition and treating a patient for a disease or condition, for example, a viral disease or cancer, with the use of the composition.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: April 18, 2017
    Assignee: Sigmapharm Laboratories, LLC
    Inventors: Spiridon Spireas, Ishari Piya, Rakesh Grover, Sunil Sagi, Ram K. Kallur
  • Publication number: 20120196834
    Abstract: Disclosed are highly stable compositions having outstanding storage stability and/or demonstrating exceptional resistance to aqueous solution degradation, the composition including an orally active nucleotide analogue or an orally active nucleotide analogue prodrug, which is orally bioavailable, such as adefovir dipivoxil and tenofovir disoproxil. For example, when a composition of the invention is stored for 1 month or for 18 months at 25° C. and 60% relative humidity, its orally active nucleotide analogue or orally active nucleotide analogue prodrug degrades to provide a composition containing no more than 0.2% or no more than 0.7% by weight of a less orally bioavailable impurity, respectively. Also disclosed are a container/closure package system including the composition and a package insert and methods of manufacturing the composition and treating a patient for a disease or condition, for example, a viral disease or cancer, with the use of the composition.
    Type: Application
    Filed: December 9, 2011
    Publication date: August 2, 2012
    Applicant: SIGMAPHARM LABORATORIES, LLC
    Inventors: Spiridon Spireas, Ishari Piya, Rakesh Grover, Sunil Sagi, Ram K. Kallur
  • Publication number: 20080095843
    Abstract: Disclosed herein are controlled-release formulations which exhibit substantially zero-order release kinetics. The formulations include a core comprising a core active agent and a wax excipient substantially coated with an extended-release coating. The formulation optionally includes an immediate-release portion comprising an immediate-release active agent in the form of, for example, a coating disposed on at least a portion of the core. Further disclosed are fexofenadine/pseudoephedrine combination formulations, which exhibit substantially no food effect.
    Type: Application
    Filed: July 11, 2007
    Publication date: April 24, 2008
    Inventors: Siva Nutalapati, Kristin Arnold, Ishari Piya