Patents by Inventor Ben Eckenhoff, deceased

Ben Eckenhoff, deceased 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).

  • Osmotic delivery system having space-efficient piston
    Patent number: 7235068
    Abstract: An osmotic delivery system having a space-efficient piston is provided. The enclosure has an interior holding the piston, a protein or peptide, and an osmotic agent. The piston is movable with respect to an interior surface of the capsule, and defines a movable seal with the interior surface of the capsule. The movable seal separates the osmopolymer from the protein or peptide. The piston has a recess that receives at least a portion of the osmotic agent. The osmotic agent imbibes liquid from a surrounding environment to cause the piston to move and, in turn, cause delivery of the beneficial agent from the capsule.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: June 26, 2007
    Assignee: Alza Corporation
    Inventors: Felix Theeuwes, Bonnie Burdett Dennis, legal representative, Ben Eckenhoff, deceased
  • Osmotic delivery system having space efficient piston
    Patent number: 6997922
    Abstract: An osmotic delivery system having a space-efficient piston is provided. The enclosure has an interior holding the piston, a beneficial agent, and an osmopolymer including a tablet. The piston is movable with respect to an interior surface of the capsule, and defines a movable seal with the interior surface of the capsule. The movable seal separates the osmopolymer from the beneficial agent. The piston has a recess that receives at least a portion of the osmopolymer. The osmopolymer imbibes liquid from a surrounding environment through a semipermeable body to cause the piston to move and, in turn, cause delivery of the beneficial agent from the capsule.
    Type: Grant
    Filed: October 5, 2004
    Date of Patent: February 14, 2006
    Assignee: Alza Corporation
    Inventors: Felix Theeuwes, Bonnie Burdett Dennis, legal representative, Ben Eckenhoff, deceased