Patents by Inventor David John Boughton

David John Boughton 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).

  • Shield and ceramic filter
    Patent number: 5790001
    Abstract: An improved shield and ceramic filter. The shield includes (i) an upright portion (16) comprising a conductive material, (ii) a chamfered portion (22) disposed atop the upright portion (16), (iii) a horizontal portion (18) disposed on a distal portion of the chamfered portion (22) and (iv) one or more openings (20) disposed on the chamfered portion (22). The improved shield (12) desirably but not essentially further includes at least one slot (26) cut into a basal section of the upright portion (16). The at least one slot (26) allows a microstrip transmission line to pass under a portion of the shield (12).
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: August 4, 1998
    Assignee: Motorola, Inc.
    Inventors: Michael Kip Eugene Waldo, David John Boughton, Reddy Ramachandra Vangala