Patents by Inventor Jeff L. Simpson

Jeff L. Simpson 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).

  • Wireless telephone handset
    Patent number: D538253
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: March 13, 2007
    Assignee: Spectra Link Corp.
    Inventors: Stephen G. Miggels, Michael Zambelli, In Young Jang, Mitchell T. Silver, Jeff L. Simpson, David Borostyan
  • Enhanced wireless telephone handset
    Patent number: D539779
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: April 3, 2007
    Assignee: SpectraLink, Corp.
    Inventors: Stephen G. Miggels, Michael Zambelli, In Young Jang, Mitchell T. Silver, Jeff L. Simpson, David Borostyan