Patents by Inventor Charles W. Nejdl

Charles W. Nejdl 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: 4494100
    Abstract: A planar inductance element includes a generally flat substrate of electrically insulating material. First and second substantially flat spiral coils, having respective inner and outer ends, are disposed on opposite sides of the substrate. The coils are spiraled in the same direction as viewed from one side of the substrate with one coil spiraling out and one spiraling in. The inner ends of the coils are joined through the substrate to couple the coils in series. The outer ends of the coils provide terminals for the inductor. The means/methods are disclosed for discretely and progressively trimming the inductor.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: January 15, 1985
    Assignee: Motorola, Inc.
    Inventors: Robert E. Stengel, Charles W. Nejdl