Patents Assigned to SJS & Sons, Inc.
  • Audio headset
    Patent number: D606972
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: December 29, 2009
    Assignee: SJS & Sons, Inc.
    Inventor: Stephen J. Schaefer
  • Audio headset
    Patent number: D611934
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: March 16, 2010
    Assignee: SJS & Sons, Inc.
    Inventor: Stephen J. Schaefer
  • Audio headset
    Patent number: D674377
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: January 15, 2013
    Assignee: SJS & Sons, Inc.
    Inventor: Stephen J. Schaefer