Patents by Inventor Atul A. Kelkar

Atul A. Kelkar 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: 9629915
    Abstract: The novel sustained release dosage form comprising an active agent and a combination of a non-swelling pH dependent release retardant and a non swelling pH independent release retardant polymer which provides pH-independent drug release for a considerable period of time after administration.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: April 25, 2017
    Assignee: Rubicon Research Private Limited
    Inventors: Pratibha S Pilgaonkar, Maharukh T Rustomjee, Anilkumar S Gandhi, Paras R Jain, Atul A Kelkar
  • Publication number: 20150150991
    Abstract: The novel sustained release dosage form comprising an active agent and a combination of a non-swelling pH dependent release retardant and a non swelling pH independent release retardant polymer which provides pH-independent drug release for a considerable period of time after administration.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 4, 2015
    Inventors: Pratibha S. Pilgaonkar, Maharukh T. Rustomjee, Anilkumar S. Gandhi, Paras R. Jain, Atul A. Kelkar
  • Patent number: 8920837
    Abstract: The novel sustained release dosage form comprising an active agent and a combination of a non-swelling pH dependent release retardant and a non swelling pH independent release retardant polymer which provides pH-independent drug release for a considerable period of time after administration.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: December 30, 2014
    Assignee: Rubicon Research Private Limited
    Inventors: Pratibha S. Pilgaonkar, Maharukh T. Rustomjee, Anilkumar S. Gandhi, Paras R. Jain, Atul A. Kelkar
  • Patent number: 7623993
    Abstract: A method to provide active noise control to reduce noise and vibration in reverberant acoustic enclosures such as aircraft, vehicles, appliances, instruments, industrial equipment and the like is presented. A continuous-time multi-input multi-output (MIMO) state space mathematical model of the plant is obtained via analytical modeling and system identification. Compensation is designed to render the mathematical model passive in the sense of mathematical system theory. The compensated system is checked to ensure robustness of the passive property of the plant. The check ensures that the passivity is preserved if the mathematical model parameters are perturbed from nominal values. A passivity-based controller is designed and verified using numerical simulations and then tested. The controller is designed so that the resulting closed-loop response shows the desired noise reduction.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: November 24, 2009
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Atul Kelkar, Suresh M. Joshi
  • Publication number: 20090053310
    Abstract: The novel sustained release dosage form comprising an active agent and a combination of a non-swelling pH dependent release retardant and a non swelling pH independent release retardant polymer which provides pH-independent drug release for a considerable period of time after administration.
    Type: Application
    Filed: July 3, 2006
    Publication date: February 26, 2009
    Inventors: Pratibha S. Pilgaonkar, Maharukh T. Rustomjee, Anilkumar S. Gandhi, Paras R. Jain, Atul A. Kelkar
  • Publication number: 20080248107
    Abstract: The present invention provides a controlled release formulation comprising an therapeutically effective amount of pharmacologically active substance having high water solubility, at least one non-polymeric release retardant, and at least one pH independent non-swelling release retarding polymer. The said dosage form provides controlled release of the active agent with reduced initial burst release.
    Type: Application
    Filed: August 24, 2006
    Publication date: October 9, 2008
    Applicant: Rubicon Research Pvt. Ltd.
    Inventors: Pratibha S. Pilgaonkar, Maharukh T. Rustomjee, Anikumar S. Gandhi, Atul A. Kelkar, Pradnya Bagde
  • Publication number: 20080038342
    Abstract: The present invention relates to a stable pharmaceutical composition comprising an ACE inhibitor or a pharmaceutically acceptable salt or derivative thereof. In particular, the invention relates to a pharmaceutical composition, which comprises an ACE inhibitor, or a pharmaceutically acceptable salt or a derivative thereof, and a C16-C28 glyceride. ACE inhibitors useful in the present invention are susceptible to heat and/or mechanical stress-induced degradation. Preferred ACE inhibitors are ramipril, trandolapril, quinapril and pharmaceutically acceptable salts and derivatives thereof. The composition of the present invention may be for use as a medicament for the treatment or prevention of a cardiovascular disease, a coronary heart disease, a cerebrovascular disease, a peripheral vascular disease, arrhythmia, hypertension, cardiac failure, cardiovascular death, myocardial infraction, stroke or angina.
    Type: Application
    Filed: February 15, 2005
    Publication date: February 14, 2008
    Applicant: Niche Generics Limited
    Inventors: Jeffrey Bergman, Pratibha Pilgaonkar, Maharuk Rustomjee, Amita Surana, Rizwana Mulagath, Atul Kelkar
  • Publication number: 20060088594
    Abstract: Highly compressible controlled delivery compositions of metformin or salts thereof and the process of making the same are disclosed. Metformin is granulated with a binder and further dispersed in a rate-controlling matrix that results in increased hardness and decreased friability thereby effectively solving compressibility difficulties arising for Metformin formulations.
    Type: Application
    Filed: October 7, 2005
    Publication date: April 27, 2006
    Inventors: Pratibha Pilgaonkar, Maharukh Rustomjee, Anilkumar Gandhi, Atul Kelkar, Vinderjit Bhumra
  • Publication number: 20060064180
    Abstract: A method to provide active noise control to reduce noise and vibration in reverberant acoustic enclosures such as aircraft, vehicles, appliances, instruments, industrial equipment and the like is presented. A continuous-time multi-input multi-output (MIMO) state space mathematical model of the plant is obtained via analytical modeling and system identification. Compensation is designed to render the mathematical model passive in the sense of mathematical system theory. The compensated system is checked to ensure robustness of the passive property of the plant. The check ensures that the passivity is preserved if the mathematical model parameters are perturbed from nominal values. A passivity-based controller is designed and verified using numerical simulations and then tested. The controller is designed so that the resulting closed-loop response shows the desired noise reduction.
    Type: Application
    Filed: December 9, 2003
    Publication date: March 23, 2006
    Inventors: Atul Kelkar, Suresh Joshi