Patents by Inventor Alfred Zembrod

Alfred Zembrod 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).

  • Color-stabilizing polyarylene sulfide mixture
    Patent number: 5312854
    Abstract: The invention relates to a mixture of PPS and colophony which shows improved color stability during processing at high temperatures.
    Type: Grant
    Filed: June 25, 1993
    Date of Patent: May 17, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Wolf, Burkhard Kohler, Alfred Zembrod, Klaus Kraft, Helmut Gorner
  • Medicament formulation containing dihydropyridines and a process for its preparation
    Patent number: 4976964
    Abstract: In the parenteral administration of a dihydropyridine, the improvement which comprises administering the dihydropyridine in an aqueous medium of pH 3 to 8.5 having dispersed therein liposomes with an average diameter of 20-1000 nm, the liposome membrane containng the following constituents by weight:(a) a part of a dihydropyridine, and(b) 5-500 parts of lipids.The aqueous medium is storage stable and readily injectable.
    Type: Grant
    Filed: April 16, 1986
    Date of Patent: December 11, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Schlossmann, Alfred Zembrod, Stanislav Kazda, Peter Serno, Bernd Klinksiek
  • Reflectance photometer
    Patent number: 4890926
    Abstract: A reflectance photometer for quantitatively measuring diffuse light includes a light source located above a sample. The reflectance photometer also includes a first detector mounted at a preselected scattering angle relative to an axis extending perpendicularly from the sample through the light source. A first linear polarizer is mounted between the sample and the light source. The direction of polarization of the first linear polarizer is vertical to a scattering plane defined by the direction of incoming light from the light source and the direction of reflected light detected by the first detector. A second linear polarizer is mounted between the sample and the first detector. The direction of the second polarizer is parallel to the scattering plane. The reflectance photometer can include a second detector mounted at a second, scattering angle. A third linear polarizer is mounted between the sample and the second detector.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: January 2, 1990
    Assignee: Miles Inc.
    Inventors: Andrew Dosmann, Willis Howard, Alfred Zembrod
  • Illuminating device for the optical, particularly image-analytical evaluation of microbiological objects
    Patent number: 4665036
    Abstract: An illuminating device with a diffused, radiating, surface light source (3) and an aperture system positioned between the light source and the object is provided. The aperture system is formed by two optically complementary aperture screens (4, 5) which are disposed in series, and are spaced apart. The first aperture screen (4) thereby consists of a large number of transparent circular discs (8), positioned at intervals on an opaque base, and a second aperture screen (5) consists of a large number of opaque circular discs (9), positioned at intervals on a transparent base. The diameter of the opaque circular discs (9) is larger than that of the transparent circular discs (8), so that the circular discs of the two aperture screens (4, 5) overlap in the projection.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: May 12, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hubert Dedden, Dietrich Forster, Horst Rost, Alfred Zembrod