Patents Assigned to GTC Properties, Inc.
  • Transformerless LED digital alarm clock
    Patent number: 6147935
    Abstract: A transformerless LED digital display clock circuitry using AC line voltage as a primary source of power is disclosed. The AC line voltage is substantially reduced to around 10 volts or less and then rectified to provide DC power to the quartz analog clock. Also included is a NiCad battery circuitry used as a power backup and to allow for occasional but high current using devices. The LED digital display is made up of four separate "digit" displays each independently controlled by four separate cathode outputs from a microprocessor.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: November 14, 2000
    Assignee: GTC Properties, Inc.
    Inventors: Thomas G. Guyett, Michael H. Reeves, Stephen B. Hobbs
  • Clock
    Patent number: D437236
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: February 6, 2001
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock
    Patent number: D437238
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: February 6, 2001
    Assignee: GTC Properties, Inc.
    Inventor: Anthony Sell
  • Clock
    Patent number: D443523
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: June 12, 2001
    Assignee: GTC Properties, Inc.
    Inventor: James B. Duke
  • Clock
    Patent number: D443524
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: June 12, 2001
    Assignee: GTC Properties, Inc.
    Inventor: James B. Duke
  • Clock
    Patent number: D444074
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: June 26, 2001
    Assignee: GTC Properties, Inc.
    Inventor: James B. Duke
  • Clock
    Patent number: D409498
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: May 11, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock
    Patent number: D409499
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: May 11, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock
    Patent number: D409500
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: May 11, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock
    Patent number: D413272
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: August 31, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Jim Duke
  • Clock
    Patent number: D413812
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: September 14, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Jim Duke
  • Clock
    Patent number: D413814
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: September 14, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock
    Patent number: D414119
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: September 21, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock
    Patent number: D414120
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: September 21, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock
    Patent number: D415431
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: October 19, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Jim Duke
  • Clock
    Patent number: D415966
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: November 2, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock radio
    Patent number: D416901
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: November 23, 1999
    Assignee: GTC Properties, Inc.
    Inventor: Jim Duke
  • Clock
    Patent number: D421226
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: February 29, 2000
    Assignee: GTC Properties, Inc.
    Inventor: Jim Duke
  • Clock
    Patent number: D422921
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: April 18, 2000
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III
  • Clock radio
    Patent number: D429234
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: August 8, 2000
    Assignee: GTC Properties, Inc.
    Inventor: Walter Edward Hargrove, III