Patents Represented by Attorney Ferris M. Stout
  • Patent number: 5158656
    Abstract: An electrochemical apparatus and method for supplying volatile hydrides of sufficient purity, at the proper pressure, and in the required volume, for direct introduction into a chemical vapor deposition reactor in which semiconductors are manufactured and doped.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: October 27, 1992
    Assignee: Electron Transfer Technologies, Inc.
    Inventor: William M. Ayers
  • Patent number: 4794789
    Abstract: The Rapid Sediment Analyzer provides information on the size distribution of a sample of finely divided particulate matter (e.g. sand) by monitoring the weight and the rate with which the particles fall through a column of liquid (e.g. water). A digital computer connected to the Analyzer reports the particle size distribution directly.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: January 3, 1989
    Assignee: University of Iowa Research Foundation
    Inventor: Tatsuaki Natako
  • Patent number: 4790355
    Abstract: A vertical dropshaft having internal helicoidal ramps for dissipating the energy of liquid passing through the dropshaft and for exhausting air entrained by the falling liquid up the center of the dropshaft.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: December 13, 1988
    Assignee: University of Iowa Research Foundation
    Inventor: John F. Kennedy
  • Patent number: 4751921
    Abstract: A pair of screens in the barrel of a bone cement syringe improves the strength of the bone cement by breaking large bubbles into many small bubbles.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: June 21, 1988
    Assignee: University of Iowa Research Foundation
    Inventor: Joon B. Park
  • Patent number: 4659673
    Abstract: An improved device for replicating cultures of microorganisms grown in petri plates which pierces colonies with an array of fine needles. The device is capable of at least ten replications, and will replicate virtually any colony.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: April 21, 1987
    Inventor: Lewis R. Brown
  • Patent number: 4598050
    Abstract: An easily loaded culture plate for microorganisms with an unconstrained flat agar surface for sampling flat areas.
    Type: Grant
    Filed: December 2, 1983
    Date of Patent: July 1, 1986
    Inventor: Lewis R. Brown
  • Patent number: 4589419
    Abstract: The cardiac catheter of this invention combines in a single, thin tube, an acoustic transducer for determining blood flow velocity, and a separate lumen with a removable, flexible, radio-opaque guide wire, enabling the surgeon to locate the site of arterial blockage, evaluate the blockage, and assess the effect of the treatment.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: May 20, 1986
    Assignee: University of Iowa Research Foundation
    Inventors: Donald E. Laughlin, Robert F. Wilson, Thomas A. Drews
  • Patent number: 4326028
    Abstract: A perforated gel-supporting structure with a temporary seal attached to it divides a cylindrical dish into cylindrical compartments A and B. Microorganisms are grown on agar poured into compartment A. The dish is inverted, the seal removed, and a second nutrient medium is poured into compartment B. Antibiotic substances produced by the microorganisms diffuse through the agar and inhibit growth of pathogens which have been inoculated into compartment B.
    Type: Grant
    Filed: September 10, 1980
    Date of Patent: April 20, 1982
    Inventor: Lewis R. Brown
  • Patent number: 4161198
    Abstract: A portable machine for servicing small animal cage litter trays which is independent of water and waste connections.
    Type: Grant
    Filed: November 18, 1976
    Date of Patent: July 17, 1979
    Assignee: University of Virginia Alumni Patents Foundation
    Inventor: Nickolas J. Sojka
  • Patent number: 4114605
    Abstract: A saucer-shaped, resilient cup, sealed to a flat cover with an aperture in it to fit over the orifice of Stenson's duct from the parotid gland, adheres to the inside of the cheek, held in place by negative pressure, to collect the secretion of the parotid gland. Nothing protrudes from the mouth during collection of the sample.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: September 19, 1978
    Assignee: University of Alabama in Birmingham
    Inventors: Jerry R. McGhee, Milton E. Schaefer
  • Patent number: 4106900
    Abstract: A chemical, useful as a warp size, which is soluble in water at one temperature and insoluble at a different temperature, is applied to textile yarns in the process known as slashing. By manipulation of temperatures the chemical is reclaimed and recycled as a warp size. The water from the reclamation step may be recycled, or the water may be discharged with a minimum of waste treatment.
    Type: Grant
    Filed: January 18, 1977
    Date of Patent: August 15, 1978
    Assignee: Auburn University Research Foundation
    Inventor: Warren S. Perkins
  • Patent number: 4009685
    Abstract: An aqueous foam is disposed in a litter tray under an animal cage to receive, conceal, suspend and deodorize animal wastes. When the foam has become soiled, it is cleaned from the tray with a jet or jets of water. The trays may be cleaned in a portable tray washing machine especially adapted for the purpose. A single continuous tray may be provided beneath a multiplicity of cages to receive the aqueous foam, from which the soiled wastes can be flushed by a stream of water into a container for the purpose.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: March 1, 1977
    Assignee: The University of Virginia
    Inventor: Nickolas J. Sojka