Patents Represented by Attorney Berthold J. Weis
  • Patent number: 5037097
    Abstract: A sports racket having a stringed playing surface wherein selected ends of individual string segments meet the frame alternately in front of or behind the plane of the playing surface.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: August 6, 1991
    Assignee: Athletic Alternatives, Inc.
    Inventors: Rodney Svoma, James Speros, Gene A. Broadman
  • Patent number: 5015861
    Abstract: Improved radiation detectors containing lead carbonate or basic lead carbonate as the scintillator element are disclosed. Both of these scintillators have been found to provide a balance of good stopping power, high light yield and short decay constant that is superior to other known scintillator materials. The radiation detectors disclosed are favorably suited for use in general purpose detection and in medical uses.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: May 14, 1991
    Assignee: Regents of the University of California
    Inventors: Stephen E. Derenzo, William W. Moses
  • Patent number: 5015860
    Abstract: An improved radiation detector containing a crystalline mixture of LaF.sub.3 and CeF.sub.3 as the scintillator element is disclosed. Scintillators made with from 25% to 99.5% LaF.sub.3 and the remainder CeF.sub.3 have been found to provide a balance of good stopping power, high light yield and short decay constant that is equal to or superior to other known scintillator materials, and which may be processed from natural starting materials containing both rare earth elements. The radiation detectors disclosed are favorably suited for use in general purpose detection and in positron emission tomography.
    Type: Grant
    Filed: April 3, 1990
    Date of Patent: May 14, 1991
    Assignee: University of California
    Inventor: William W. Moses
  • Patent number: 4974571
    Abstract: A device for introducing fuel into the head space of cylinder of non-premixed charge (diesel) engines is disclosed, which distributes fuel in atomized form in a plume, whose fluid dynamic properties are such that the compression heated air in the cylinder head space is entrained into the interior of the plume where it is mixed with and ignites the fuel in the plume interior, to thereby control combustion, particularly by use of a multiplicity of individually controllable devices per cylinder.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: December 4, 1990
    Assignee: Regents of the University of California
    Inventors: A. K. Oppenheim, H. E. Stewart
  • Patent number: 4924828
    Abstract: A system for controlling combustion in internal combustion engines of both the Diesel or Otto type, which relies on establishing fluid dynamic conditions and structures wherein fuel and air are entrained, mixed and caused to be ignited in the interior of a multiplicity of eddies, and where these structures are caused to sequentially fill the headspace of the cylinders.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: May 15, 1990
    Assignee: The Regents of the University of California
    Inventor: A. K. Oppenheim
  • Patent number: 4925144
    Abstract: A bookholder is described, relying on a single unitary or articulated main member to support a book in contact with one end thereof, with the aid of crossbars and/or clamps mating therewith.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: May 15, 1990
    Inventor: Dennis E. White
  • Patent number: 4921002
    Abstract: A device which switches water flow from an outlet sequentially between two other outlets automatically in response to turning the water supply on and off, by using hydraulic energy of the water, and energy from a spring to manipulate a pair of positions along a predetermined path into positions of appropriately opening and closing the outlets.
    Type: Grant
    Filed: December 9, 1988
    Date of Patent: May 1, 1990
    Assignee: Rain Matic Corporation
    Inventors: Thomas M. Christon, Martin A. Richards, Eric H. Scholz
  • Patent number: 4802678
    Abstract: A stringing arrangement for a sports racket which compensates for twisting of the racket in the hand of the user when a ball is hit by areas of the racket to either side of a substantially flat middle region which extends from the heel to the tip of the racket frame. The stringing arrangement presents spaced string areas to opposite faces of the racket from the middle region outwardly to the sides of the racket frame. These spaced string areas become progressively farther from the plane of the substantially flat middle region from said middle region to the sides of the frame.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: February 7, 1989
    Inventor: Rodney A. Svoma
  • Patent number: 4798807
    Abstract: Compositions of matter are described which include five monoclonal antibodies that react with dioxins and dibenzofurans, and the five hybridomas that produce these monoclonal antibodies. In addition, a method for the use of these antibodies in a sensitive immunoassay for dioxins and dibenzofurans is given, which permits detection of these pollutants in samples at concentrations in the range of a few parts per billion.
    Type: Grant
    Filed: June 24, 1986
    Date of Patent: January 17, 1989
    Assignee: The Regents of the University of California
    Inventors: Martin Vanderlaan, Larry H. Stanker, Bruce E. Watkins, Nina R. Bailey
  • Patent number: 4784811
    Abstract: A method of making optrodes is provided by which a pressure-sensitive volume is incorporated in the optrode by bubble transfer and/or gas entrapment in the manufacturing step sequence.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: November 15, 1988
    Assignee: The Regents of the University of California
    Inventor: Tomas B. Hirschfeld
  • Patent number: 4780406
    Abstract: A method for the simultaneous flow cytometric measurement of the total DNA content and the level of DNA synthesis in normal and malignant cells is disclosed. The sensitivity of the method allows a study of cell cycle traverse rates for large scale cell populations as well as single cell measurements. A DNA stain such as propidium iodide or Hoechst 33258 is used as the probe for the measurement of total DNA content and a monoclonal antibody reactive with a DNA precursor such as halodeoxy-uridine (HdU), more specifically bromodeoxyuridine (BrdU) is used as a probe for the measurement of HdU or BrdU uptake by the cells as a measure of DNA synthesis.
    Type: Grant
    Filed: June 5, 1984
    Date of Patent: October 25, 1988
    Assignee: The Regents of the University of California
    Inventors: Frank A. Dolbeare, Joe W. Gray
  • Patent number: 4767710
    Abstract: Cloned mouse hybridoma cell lines have been established which continuously produce antibodies that differentiate between the M and N forms of human glycophorin A. These antibodies have potential application as human blood group reagents, as markers for terminally differentiated erythroid cells and as immunofluorescent labels of somatically variant human erythrocytes.
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: August 30, 1988
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: William L. Bigbee, Stella S. N. Fong, Ronald H. Jensen, Martin Vanderlaan, Richard G. Langlois
  • Patent number: 4762754
    Abstract: Shock wave formation of superconductive ceramic oxide electric and magnetic circuit elements with improved microstructures and mechanical properties.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: August 9, 1988
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: William J. Nellis, M. Brian Maple, Theodore H. Geballe
  • Patent number: 4666672
    Abstract: A two-phase system employing the Fujiwara reaction is provided for the fluorometric detection of halogenated hydrocarbons. A fiber optic is utilized to illuminate a column of pyridine trapped in a capillary tube coaxially attached at one end to the illuminating end of the fiber optic. A strongly alkaline condition necessary for the reaction is maintained by providing a reservoir of alkali in contact with the column of pyridine, the surface of contact being adjacent to the illuminating end of the fiber optic. A semipermeable membrane caps the other end of the capillary tube, the membrane being preferentially permeable to the halogenated hydrocarbon and but preferentially impermeable to water and pyridine. As the halogenated hydrocarbon diffuses through the membrane and into the column of pyridine, fluorescent reaction products are formed. Light propagated by the fiber optic from a light source, excites the fluorescent products.
    Type: Grant
    Filed: April 8, 1985
    Date of Patent: May 19, 1987
    Assignee: University of California
    Inventors: Holly Miller, Fred P. Milanovich, Tomas B. Hirschfeld, Fred S. Miller