Patents by Inventor Benjamin Hafen

Benjamin Hafen 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).

  • 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