Patents by Inventor Albert Zwiener

Albert Zwiener 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).

  • Apparatus for preparing biodegradable microparticle formulations containing pharmaceutically active agents
    Publication number: 20070054002
    Abstract: This invention is directed to an apparatus and method for producing microparticles comprising pharmacologically active agents and biodegradable polymers. The apparatus includes a spinning disk containing a reservoir in the center thereof and a flat inclined surface. The apparatus optionally includes serrations and/or a flat surface beneath the periphery of the disk that is parallel to the rotational axis of the disk. The invention is also directed to a method for producing microparticles containing pharmacologically active agents, using the spinning disk apparatus. Formulations containing ophthalmically active agents are provided. Formulations exhibiting zero order release rates are also described.
    Type: Application
    Filed: September 7, 2005
    Publication date: March 8, 2007
    Applicant: Southwest Research Institute
    Inventors: Joseph Persyn, Joseph McDonough, Neal Vail, Darren Barlow, Albert Zwiener, Eliot Slovin
  • Pharmaceutical formulations exhibiting improved release rates
    Publication number: 20070053990
    Abstract: This invention is directed to an apparatus and method for producing microparticles comprising pharmacologically active agents and biodegradable polymers. The apparatus includes a spinning disk containing a reservoir in the center thereof and a flat inclined surface. The apparatus optionally includes serrations and/or a flat surface beneath the periphery of the disk that is parallel to the rotational axis of the disk. The invention is also directed to a method for producing microparticles containing pharmacologically active agents, using the spinning disk apparatus. Formulations containing ophthalmically active agents are provided. Formulations exhibiting zero order release rates are also described.
    Type: Application
    Filed: September 7, 2005
    Publication date: March 8, 2007
    Applicant: Southwest Research Institute
    Inventors: Joseph Persyn, Joseph McDonough, Neal Vail, Darren Barlow, Albert Zwiener, Eliot Slovin
  • Methods for preparing biodegradable microparticle formulations containing pharmaceutically active agents
    Publication number: 20070053989
    Abstract: This invention is directed to an apparatus and method for producing microparticles comprising pharmacologically active agents and biodegradable polymers. The apparatus includes a spinning disk containing a reservoir in the center thereof and a flat inclined surface. The apparatus optionally includes serrations and/or a flat surface beneath the periphery of the disk that is parallel to the rotational axis of the disk. The invention is also directed to a method for producing microparticles containing pharmacologically active agents, using the spinning disk apparatus. Formulations containing ophthalmically active agents are provided. Formulations exhibiting zero order release rates are also described.
    Type: Application
    Filed: September 7, 2005
    Publication date: March 8, 2007
    Applicant: Southwest Research Institute
    Inventors: Joseph Persyn, Joseph McDonough, Neal Vail, Darren Barlow, Albert Zwiener, Eliot Slovin