Patents by Inventor Wilfried E. Kottke

Wilfried E. Kottke 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).

  • Snap-in antenna assembly
    Patent number: 5343213
    Abstract: An extendable antenna assembly allows for snap-in assembly and quick disconnection thereby saving both time and money in antenna assembly and replacement. The extendable antenna assembly includes an extendable radiating half-wavelength antenna (108) and a helical quarter wavelength antenna (300). The helical antenna (300) includes an antenna section (112) and a support section which includes a number of resilient leg members (116). Some of the leg members (116) include snaps (118) which engage with retention areas (122) which are found in the radio housing (120). A guide tube (102) having a flared top section (124) is found inside the radio (100) and provides for a way of compressing the individual leg members (116) thereby, releasing the extendable antenna assembly from the radio housing (120) when the antenna assembly requires removal.
    Type: Grant
    Filed: October 22, 1991
    Date of Patent: August 30, 1994
    Assignee: Motorola, Inc.
    Inventors: Wilfried E. Kottke, Jill C. Olkoski
  • Portable communication device
    Patent number: D469069
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: January 21, 2003
    Assignee: Motorola, Inc.
    Inventors: Phoebe Po-Yi Ng, David H. Karl, Benjamin Hafen, Wilfried E. Kottke
  • Communication device
    Patent number: D475986
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: June 17, 2003
    Assignee: Motorola, Inc.
    Inventors: Phoebe Po-Yi Ng, Chome M. Cebe, Donald W. Burnette, Wilfried E. Kottke