Patents Assigned to University of Rhode Island
  • Bifunctionalized polyester material for surface treatment and biomodification
    Patent number: 7037527
    Abstract: The invention features a method of treating polyester material to generate functional carboxylic acid and amine groups. These functional groups can be used as sites for covalent bond formation to attach chemical or biological moieties. This bifunctionalized polyester polymer can be used in any medical application in which biocompatible polymers are used.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: May 2, 2006
    Assignees: University of Rhode Island, Beth Israel Deaconess Medical Center, BioMod Surfaces
    Inventors: Martin J. Bide, Matthew D. Phaneuf, William C. Quist, Donald J. Dempsey, Frank W. LoGerfo
  • Method of measuring oxygen using a membrane covered polarographic electrode
    Patent number: 4464230
    Abstract: An oxygen analyzer which measures the level of dissolved oxygen in a liquid stream. The measuring process embodies chronoamperoemetry of pulsed potential voltammetry. The signal from the electrode is real time averaged. The analyzer does not require temperature, salinity or pressure compensation circuitry and does not have to be calibrated repeatedly.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: August 7, 1984
    Assignee: University of Rhode Island
    Inventor: Christopher Langdon
  • Apparatus and method to enable a robot with vision to acquire, orient and transport workpieces
    Patent number: 4305130
    Abstract: A robot assembly for acquiring unorientated workpieces from a bin. A sensing system views the bin and collects data. A computer analyzes the data to determine candidate holdsites on the workpiece. The hand of the robot assembly then engages a workpiece at a selected holdsite. The workpiece is moved to a pose where the position and orientation of the workpiece are determined. After this determination, the workpiece may be disengaged, or moved to an intermediate or final goal site.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: December 8, 1981
    Assignee: University of Rhode Island
    Inventors: Robert B. Kelley, John R. Birk, Dana L. Duncan, Richard P. Tella, Laurie J. Wilson
  • Process for producing hydrocarbon gas from organic plant material
    Patent number: 4188193
    Abstract: Plant-derived organic material is converted to high BTU gas by heating the organic material with ammonia in the presence of a vanadium +3 or +4 catalyst and a hydrogenation catalyst in an atmosphere substantially free of oxygen.
    Type: Grant
    Filed: March 21, 1979
    Date of Patent: February 12, 1980
    Assignee: University of Rhode Island
    Inventor: George T. Felbeck, Jr.