Patents by Inventor Klaus D. Zang

Klaus D. Zang 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).

  • Patent number: 4803672
    Abstract: An electric timepiece having a square dial with corners at the twelve, three, six and nine o'clock positions has a first array of twelve light sources at one to twelve o'clock positions, a second array of four light sources which are inwardly adjacent the light sources of the first array at the twelve, three, six and nine o'clock positions, and a centrally located light source. The color and/or intensity of radiation issuing from the centrally located light source changes at midnight and at noon, and all of the remaining light sources are used to indicate minutes. The light sources of the second array indicate single-minute periods, and the light sources of the first array indicate five-minute periods. In addition, the light sources of the first array are used to indicate hours in colors or hues other than those used to denote five-minute periods.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: February 7, 1989
    Assignee: Walter GmbH
    Inventor: Klaus D. Zang
  • Patent number: D304690
    Type: Grant
    Filed: February 10, 1987
    Date of Patent: November 21, 1989
    Assignee: Walter GmbH
    Inventor: Klaus D. Zang