Patents by Inventor Yu-Chow Ko

Yu-Chow Ko 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).

  • Patent number: 6826860
    Abstract: A portable wordsign arrangement includes a wordsign supporter, a power supply supported by the wordsign supporter, a word character arrangement, which is formed by a plurality of illuminating characters, comprising at least a rope light having an electric connector end electrically connected to the power supply, wherein the rope light is shaped into the illuminating characters for increasing a visibility of the word character arrangement at a low light condition, and a plurality of mounting elements securely mounting the illuminating characters of the word character arrangement on the wordsign supporter. Therefore, the word character arrangement enables the user to customize each of the illuminating characters via the rope light to form as an indication sign.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: December 7, 2004
    Inventors: Yu-Chow Ko, Yong Qiang Liu
  • Publication number: 20040107616
    Abstract: A portable wordsign arrangement includes a wordsign supporter, a power supply supported by the wordsign supporter, a word character arrangement, which is formed by a plurality of illuminating characters, comprising at least a rope light having an electric connector end electrically connected to the power supply, wherein the rope light is shaped into the illuminating characters for increasing a visibility of the word character arrangement at a low light condition, and a plurality of mounting elements securely mounting the illuminating characters of the word character arrangement on the wordsign supporter. Therefore, the word character arrangement enables the user to customize each of the illuminating characters via the rope light to form as an indication sign.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 10, 2004
    Inventors: Yu-Chow Ko, Yong Qiang Liu
  • Publication number: 20030156413
    Abstract: An elongated rope light includes an elongated outer sheath having a first end, a second end, and an axial slot extended from the first end toward the second end, an intermediate sleeve, having an axial groove, fittedly received in the axial slot of the outer sheath wherein the intermediate sleeve has a first color section having a predetermined first color and a second color section having a predetermined second color different from the first color, and an illuminating unit including a plurality of illuminators spacedly disposed along the axial groove of the intermediate sleeve and an electric input electrically connected to the illuminators in such a manner that the illuminators are capable of respectively producing lights that transmit through the first and second colors sections of the intermediate sleeve so as to color up the lights with respect to the first and second colors.
    Type: Application
    Filed: February 21, 2002
    Publication date: August 21, 2003
    Inventor: Yu-Chow Ko
  • Patent number: 6601971
    Abstract: An elongated rope light includes an elongated outer sheath having a first end, a second end, and an axial slot extended from the first end toward the second end, an intermediate sleeve, having an axial groove, fittedly received in the axial slot of the outer sheath wherein the intermediate sleeve has a first color section having a predetermined first color and a second color section having a predetermined second color different from the first color, and an illuminating unit including a plurality of illuminators spacedly disposed along the axial groove of the intermediate sleeve and an electric input electrically connected to the illuminators in such a manner that the illuminators are capable of respectively producing lights that transmit through the first and second colors sections of the intermediate sleeve so as to color up the lights with respect to the first and second colors.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: August 5, 2003
    Inventor: Yu-Chow Ko
  • Patent number: 6527412
    Abstract: A chasing rope light includes a flexible core tube, three conductive wires longitudinally extended along the core tube, three or more illuminating units each having at least an illuminator and a diode electrically connected together in series and disposed in the core tube, wherein the illuminating units are electrically connected with the conductive wires in parallel such that when a current is applied to the conductive wires, the current is rectified by the diodes so as to alternately pass through the illuminating units for illuminating the illuminators thereof.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: March 4, 2003
    Inventor: Yu-Chow Ko
  • Patent number: 6502955
    Abstract: A chasing rope light includes a flexible core tube which has a plurality of cavities transversely and spacedly formed thereon, a pair of conductive wires longitudinally extended along the core tube, and a pair of illuminating units. Each of the illuminating units has at least an illuminator and a diode electrically connected together in series and alternately and transversely disposed in said cavities of said core tube respectively for securely holding said illuminators in position. The illuminating units are electrically connected with the conductive wires in parallel such that when a current is applied to the conductive wires, the current is rectified by the diodes so as to alternately pass through the illuminating units for illuminating the illuminators thereof.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: January 7, 2003
    Inventor: Yu-Chow Ko
  • Patent number: 6406166
    Abstract: A chasing rope light includes a flexible core tube, a pair of conductive wires longitudinally extended along the core tube and a pair of illuminating units. Each unit has at least an illuminator and a diode electrically connected together in series and disposed in the core tube. The illuminating units are electrically connected with the conductive wires in parallel such that when a current is applied to the conductive wires, the current is rectified by the diodes so as to alternately pass through the illuminating units for illuminating the illuminators thereof.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: June 18, 2002
    Inventor: Yu-Chow Ko
  • Publication number: 20020027780
    Abstract: A chasing rope light includes a flexible core tube, three conductive wires longitudinally extended along the core tube, three or more illuminating units each having at least an illuminator and a diode electrically connected together in series and disposed in the core tube, wherein the illuminating units are electrically connected with the conductive wires in parallel such that when a current is applied to the conductive wires, the current is rectified by the diodes so as to alternately pass through the illuminating units for illuminating the illuminators thereof.
    Type: Application
    Filed: July 30, 2001
    Publication date: March 7, 2002
    Inventor: Yu-Chow Ko
  • Publication number: 20020027778
    Abstract: A chasing rope light includes a flexible core tube having a plurality of cavities transversely and spacedly formed thereon, a pair of conductive wires longitudinally extended along the core tube, a pair of illuminating units, each having at least an illuminator and a diode electrically connected together in series and alternately and transversely disposed in said cavities of said core tube respectively for securely holding said illuminators in position, wherein the illuminating units are electrically connected with the conductive wires in parallel such that when a current is applied to the conductive wires, the current is rectified by the diodes so as to alternately pass through the illuminating units for illuminating the illuminators thereof.
    Type: Application
    Filed: July 30, 2001
    Publication date: March 7, 2002
    Inventor: Yu-Chow Ko
  • Patent number: D465292
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: November 5, 2002
    Inventor: Yu-Chow Ko