Patents by Inventor Kevin R. Engh

Kevin R. Engh 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).

  • Publication number: 20040156898
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 12, 2004
    Inventors: Yihong Qiu, J. Daniel Bollinger, Sandeep Dutta, Howard S. Cheskin, Kevin R. Engh, Richard P. Poska
  • Publication number: 20040156897
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior arts. This formulation minimnizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 12, 2004
    Inventors: Yihong Qiu, J. Daniel Bollinger, Howard S. Cheskin, Sandeep Dutta, Kevin R. Engh, Richard P. Poska
  • Patent number: 6720004
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: April 13, 2004
    Assignee: Abbott Laboratories
    Inventors: Yihong Qiu, J. Daniel Bollinger, Sandeep Dutta, Howard S. Cheskin, Kevin R. Engh, Richard P. Poska
  • Patent number: 6713086
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Grant
    Filed: August 8, 2002
    Date of Patent: March 30, 2004
    Assignee: Abbott Laboratories
    Inventors: Yihong Qiu, J. Daniel Bollinger, Howard S. Cheskin, Sandeep Dutta, Kevin R. Engh, Richard P. Poska
  • Publication number: 20030118656
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Application
    Filed: August 8, 2002
    Publication date: June 26, 2003
    Inventors: Yihong Qiu, J. Daniel Bollinger, Howard S. Cheskin, Sandeep Dutta, Kevin R. Engh, Richard P. Poska
  • Publication number: 20030104057
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Application
    Filed: August 8, 2002
    Publication date: June 5, 2003
    Inventors: Yihong Qiu, J. Daniel Bollinger, Sandeep Dutta, Howard S. Cheskin, Kevin R. Engh, Richard P. Poska
  • Patent number: 6528090
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: March 4, 2003
    Assignee: Abbott Laboratories
    Inventors: Yihong Qiu, J. Daniel Bollinger, Howard S. Cheskin, Sandeep Dutta, Kevin R. Engh, Richard P. Poska
  • Patent number: 6511678
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: January 28, 2003
    Assignee: Abbott Laboratories
    Inventors: Yihong Qiu, J. Daniel Bollinger, Sandeep Dutta, Howard S. Cheskin, Kevin R. Engh, Richard P. Poska
  • Publication number: 20020132010
    Abstract: The present invention is directed to a new process for granulating valproate compounds, such as divalproex sodium, in which the compound is melted in the absence of a binder and admixed with one or more excipeints to produce granules. The resulting dosage forms have an increased drug loading factor in the range of 75 w/w % to 90 w/w %.
    Type: Application
    Filed: December 22, 2000
    Publication date: September 19, 2002
    Inventors: Yihong Qui, Todd E. Chermak, Kevin R. Engh, Lynn Faitsch, Russell T. Slade
  • Publication number: 20020127277
    Abstract: The present invention is directed to an aqueous process for granulating valproate compounds, in which the pH of the granulation solution is maintained at a pH of 5 or below. The invention is also directed to dosage forms in which the residual content of organic solvents is reduced to a level of 0.2 w/w % or less.
    Type: Application
    Filed: December 22, 2000
    Publication date: September 12, 2002
    Inventors: Yihong Qiu, Kevin R. Engh, Lynn Faitsch, Russell T. Slade
  • Patent number: 6383517
    Abstract: A process for preparing a solid formulation of a lipid-regulating agent comprising dissolving said lipid-regulating agent particles in a surfactant solution, premixing an excipient, wet granulating the mixture, drying the mixture and forming a finished dosage form.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: May 7, 2002
    Assignee: Abbott Laboratories
    Inventors: Yihong Qiu, Venkatramana M. Rao, Kevin R. Engh, Thomas L. Reiland
  • Patent number: 6368622
    Abstract: A process for preparing a solid formulation of a lipid-regulating agent comprising forming a mixture of said lipid-regulating agent with a surfactant; granulating said mixture by melting, mixing, and congealing said mixture; and optionally forming a finished dosage form.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: April 9, 2002
    Assignee: Abbott Laboratories
    Inventors: Yisheng Chen, Kevin R. Engh, Yihong Qiu, Thomas L. Reiland
  • Publication number: 20020031549
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Application
    Filed: June 8, 2001
    Publication date: March 14, 2002
    Inventors: Yihong Qiu, J. Daniel Bollinger, Sandeep Dutta, Howard S. Cheskin, Kevin R. Engh, Richard P. Poska, Kenneth W. Sommerville
  • Publication number: 20020025341
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Application
    Filed: June 8, 2001
    Publication date: February 28, 2002
    Inventors: Yihong Qiu, J. Daniel Bollinger, Sandeep Dutta, Howard S. Cheskin, Kevin R. Engh, Richard P. Poska, Kenneth W. Sommerville
  • Publication number: 20010020039
    Abstract: A new oral polymeric controlled release formulation suitable for the once-a-day administration of valproate compounds, such as divalproex sodium, has been discovered. This formulation exhibits significant advantages over the sustained release valproate formulations of the prior art. This formulation minimizes the variation between peak and trough plasma levels of valproate over a 24 hour dosing period. This formulation follows a zero-order release pattern thus producing essentially flat plasma levels of valproate, once steady-state levels have been achieved. This results in a significantly lower incidence of side effects for patients consuming such a formulation.
    Type: Application
    Filed: December 22, 2000
    Publication date: September 6, 2001
    Inventors: Yihong Qiu, J. Daniel Bollinger, Sandeep Dutta, Howard S. Cheskin, Kevin R. Engh, Richard P. Poska
  • Publication number: 20010006655
    Abstract: A process for preparing a solid formulation of a lipid-regulating agent comprising forming a mixture of said lipid-regulating agent with a surfactant; granulating said mixture by melting, mixing, and congealing said mixture; and optionally forming a finished dosage form.
    Type: Application
    Filed: January 29, 1999
    Publication date: July 5, 2001
    Inventors: YISHENG CHEN, KEVIN R. ENGH, YIHOUNG QIU, THOMAS L. REILAND
  • Patent number: 6180138
    Abstract: A process for the preparation of solid formulations of a lipid-regulating agent having enhanced dissolution and absorption characteristics, in which a micronized mixture of the said lipid-regulating agent, and optionally one or more excipients, is suspended in a surfactant solution, dried and optionally granulated, and optionally converted to a finished dosage form.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: January 30, 2001
    Assignee: Abbott Laboratories
    Inventors: Kevin R. Engh, Yihong Qiu, Thomas L. Reiland
  • Patent number: 6150410
    Abstract: Pharmaceutical formulations of acidic pharmacologic agents which demonstrate improved uniformity of release over the wide range of pH values encountered between the stomach and intestinal tract comprise an acidic pharmacologic agent dissolved or dispersed in a matrix comprising about 10 weight percent to about 40 weight percent of a a neutral water-swellable hydrophilic polymer and 20 weight percent to about 50 weight percent of an acid-soluble polymer which swells in water at pH values above about 5. A particularly preferred formulation comprises divalproex sodium. Also disclosed are pre-tablet granulations and process for preparing both the pre-tablet granulation and the tablet unit dosage form.
    Type: Grant
    Filed: January 25, 2000
    Date of Patent: November 21, 2000
    Assignee: Abbott Laboratories
    Inventors: Kevin R. Engh, Yihong Qiu, Venkatramana M. Rao