Patents by Inventor David Fikstad

David Fikstad 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: 20180099053
    Abstract: Pharmaceutical compositions with synchronized solubilizer release as well as various methods associated therewith, are disclosed and described. More specifically, the aqueous solubility of a drug is enhanced by synchronized release of a solubilizer.
    Type: Application
    Filed: April 25, 2017
    Publication date: April 12, 2018
    Applicant: Lipocine Inc.
    Inventors: David Fikstad, Srinivasan Venkateshwaran, Chandrashekar Giliyar, Mahesh Patel
  • Publication number: 20160030583
    Abstract: Pharmaceutical compositions with synchronized solubilizer release as well as various methods associated therewith, are disclosed and described. More specifically, the aqueous solubility of a drug is enhanced by synchronized release of a solubilizer.
    Type: Application
    Filed: May 11, 2015
    Publication date: February 4, 2016
    Inventors: David Fikstad, Srinivasan Venkateshwaran, Chandrashekar Giliyar, Mahesh Patel
  • Publication number: 20070281927
    Abstract: Methods and compositions for delivering a meloxicam compound are disclosed and described. In one aspect, a method may include perorally administering to a subject a therapeutically effective amount of a meloxicam compound that provides a meloxicam plasma concentration within 1 hour which is at least about 40% of the maximum plasma concentration attained by the formulation. In another aspect, a composition may include a therapeutically effective amount of a meloxicam compound in a pharmaceutically acceptable carrier including at least one of an alkalizer or a solubilizer, with the meloxicam compound having a solubility in the carrier that is greater than about 1.0 mg/gm.
    Type: Application
    Filed: June 6, 2006
    Publication date: December 6, 2007
    Inventors: Shanthakumar Tyavanagimatt, David Fikstad, Chandrashekar Giliyar, Mahesh Patel, Srinivasan Venkateshwaran
  • Publication number: 20060003002
    Abstract: Pharmaceutical compositions with synchronized solubilizer release as well as various methods associated therewith, are disclosed and described. More specifically, the aqueous solubility of a drug is enhanced by synchronized release of a solubilizer.
    Type: Application
    Filed: May 4, 2005
    Publication date: January 5, 2006
    Inventors: David Fikstad, Srinivasan Venkateshwaran, Chandrashekar Giliyar, Mahesh Patel
  • Publication number: 20050096365
    Abstract: Pharmaceutical compositions with synchronized solubilizer release as well as various methods associated therewith, are disclosed and described. More specifically, the aqueous solubility of a drug is enhanced by synchronized release of a solubilizer.
    Type: Application
    Filed: November 3, 2003
    Publication date: May 5, 2005
    Inventors: David Fikstad, Srinivasan Venkateshwaran, Chandrashekar Giliyar, Feng-Jing Chen, Mahesh Patel
  • Publication number: 20050096296
    Abstract: Pharmaceutical compositions with synchronized solubilizer release as well as various methods associated therewith, are disclosed and described. More specifically, the aqueous solubility of a drug is enhanced by synchronized release of a solubilizer.
    Type: Application
    Filed: January 23, 2004
    Publication date: May 5, 2005
    Inventors: David Fikstad, Srinivasan Venkateshwaran, Chandrashekar Giliyar, Feng-Jing Chen, Mahesh Patel
  • Publication number: 20030091620
    Abstract: A transdermal drug delivery system is disclosed, which includes a polymer, a drug and an amount of a quaternary ammonium salt that is sufficient to act as a penetration enhancer. The quaternary ammonium salt may also be present in an amount sufficient to act as an irritation reducer. Further, the transdermal drug delivery system may also contain a co-enhancer, which provides a synergistic skin permeation enhancing effect when combined with the quaternary ammonium salt. A method for enhancing the transdermal delivery of a drug is also disclosed.
    Type: Application
    Filed: March 21, 2002
    Publication date: May 15, 2003
    Inventors: David Fikstad, Charles D. Ebert, Srinivasan Venkateshwaran, Lawrence R. Nilssen
  • Patent number: 6365178
    Abstract: A method of making a pressure sensitive matrix patch for transdermal delivery of a drug is disclosed. The method includes the steps of dissolving a hydrophilic salt form of the drug in the water phase of an aqueous dispersion of a hydrophobic pressure sensitive adhesive, casting the resulting mixture as a thin film, and evaporating the water. The physical stability of the drug in the film is excellent, and crystallization of the drug is inhibited. A method of increasing the transdermal flux of an acidic drug is also disclosed.
    Type: Grant
    Filed: January 17, 2001
    Date of Patent: April 2, 2002
    Assignee: Watson Pharmaceuticals, Inc.
    Inventors: Srinivasan Venkateshwaran, David Fikstad, Charles D. Ebert
  • Publication number: 20020037311
    Abstract: The present invention to provide methods, pharmaceutical formulations, and devices for the transdermal delivery of 5-substituted-6-cyclic-5,6,7,8,-tetrahydronaphthalene2-ol compounds (“lasofoxifene” or “CP-336,156”) and pharmaceutically acceptable salts thereof. The invention also provides transdermal compositions of CP-336,156 or its salts dissolved or dispersed in a suitable carrier vehicle, optionally containing permeation enhancers and other excipients. The carrier vehicle may be a pressure sensitive adhesive, polymeric reservoir, or a fluid of controlled viscosity. The carrier vehicle may be contained in a device for purposes of holding the composition against the skin surface. Such devices may be in the form of matrix patches (drug in adhesive) or reservoir patches (drug in a liquid or polymeric reservoir with peripheral, in-line, or over-layed pressure sensitive adhesive).
    Type: Application
    Filed: May 31, 2001
    Publication date: March 28, 2002
    Inventors: David Fikstad, Danyi Quan
  • Patent number: 5985317
    Abstract: A method of transdermally or transmucosally delivering a hydrophilic salt form of a drug with a water-based pressure sensitive hydrophobic adhesive matrix patch optionally containing a permeation enhancer is disclosed. A matrix patch comprising a water-based pressure sensitive hydrophobic adhesive, a hydrophilic salt form of a drug, and optionally a permeation enhancer for transdermal or transmucosal delivery of the hydrophilic salt form of the drug is also disclosed.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: November 16, 1999
    Assignee: TheraTech, Inc.
    Inventors: Srinivasan Venkateshwaran, David Fikstad, Charles D. Ebert
  • Patent number: 5952000
    Abstract: A transdermal drug delivery system which enhances the delivery of the drug comprises a composition containing, as an enhancer, one or more C.sub.6 to C.sub.22 fatty acid esters of a lactic acid salt. These compositions are made up of a safe and effective amount of an active pharmaceutical permeant contained in a penetration-enhancing vehicle comprising, 0.25 to 50% w. of the fatty acid ester of a lactic acid salt enhancer in a suitable pressure sensitive adhesive carrier vehicle formed from and aqueous emulsion based pressure sensitive adhesive.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: September 14, 1999
    Assignee: TheraTech, Inc.
    Inventors: Srinivasan Venkateshwaran, David Fikstad, Sonal R. Patel
  • Patent number: 5912009
    Abstract: A transdermal drug delivery system which enhances the delivery of the drug comprises a composition containing, as an enhancer, one or more C.sub.6 to C.sub.22 fatty acid esters of glycolic acid and its salts. These compositions are made up of a safe and effective amount of an active pharmaceutical permeant contained in a penetration-enhancing vehicle comprising, 0.25 to 50% w. of the fatty acid glycolic acid ester enhancer in a suitable carrier vehicle. These fatty acid glycolic acid ester enhancers may be used in various carrier vehicles to enhance the transdermal delivery of active permeants in either free form or used in an occlusive device, particularly in a transdermal patch in matrix or reservoir form. When used in matrix patch form, the fatty acid glycolic acid ester enhancers and permeants are incorporated into a biocompatible adhesive.
    Type: Grant
    Filed: October 29, 1997
    Date of Patent: June 15, 1999
    Assignee: TheraTech, Inc.
    Inventors: Srinivasan Venkateshwaran, David Fikstad, Sonal R. Patel