Patents by Inventor Bernard S. Effertz

Bernard S. Effertz 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).

  • Microplate forming wells with transparent bottom walls for assays using light measurements
    Patent number: 5457527
    Abstract: A microplate forms a multiplicity of sample wells for holding samples to be assayed by light emissions or light transmission. The microplate comprises a unitary upper plate and a unitary lower plate. The unitary upper plate forms the side walls of the sample wells, while the unitary lower plate forms the bottom walls of the sample wells. The side walls are opaque so that light cannot be transmitted between adjacent wells through the side walls. The bottom walls are transparent to allow the transmission of light therethrough. Bands of opaque material surround the bottom wall of each well and are located below a level of an upper surface of, the bottom wall of each well. The bands of opaque material are constructed and arranged to block the transmission of light between adjacent wells through the lower plate.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: October 10, 1995
    Assignee: Packard Instrument Company, Inc.
    Inventors: Roy L. Manns, Alfred J. Kolb, Bernard S. Effertz
  • Microplate farming wells with transparent bottom walls for assays using light measurements
    Patent number: 5319436
    Abstract: A microplate forms a multiplicity of sample wells for holding samples to be assayed by light emissions or light transmission. The plate comprises an upper plate forming the side walls of the sample wells, the side walls being opaque so that light cannot be transmitted between adjacent wells through the side walls, and a lower plate forming the bottom walls of the sample wells, the bottom walls being transparent to allow the transmission of light therethrough. Bands of opaque material are provided within the lower plate and surrounding each well to block the transmission of light between adjacent wells through the lower plate.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: June 7, 1994
    Assignee: Packard Instrument Company, Inc.
    Inventors: Roy L. Manns, Alfred J. Kolb, Bernard S. Effertz