Patents by Inventor Wen-Chieh Chang Chien

Wen-Chieh Chang Chien 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: 7926985
    Abstract: A custom assembly light-emitting module includes a base unit, a light-emitting unit and a lens unit. The base unit has a heat-dissipating base and two first retaining structures extending upwards from two opposite lateral sides of the heat-dissipating base. The light-emitting unit is detachably disposed on the heat-dissipating base. The lens unit has a lens and two second retaining structures formed on two opposite lateral sides of the lens, wherein the lens unit is detachably disposed over the light-emitting unit by matching the two first retaining structures and the two second retaining structures. Hence, the base unit, the light-emitting unit and the lens unit can be replaced according to the user's different requirements.
    Type: Grant
    Filed: February 1, 2010
    Date of Patent: April 19, 2011
    Assignee: Ledtech Electronics Corp.
    Inventors: Chien-Chen Teng, Fang-Po Wang, Wen-Chieh Chang Chien
  • Publication number: 20100128485
    Abstract: A custom assembly light-emitting module includes a base unit, a light-emitting unit and a lens unit. The base unit has a heat-dissipating base and two first retaining structures extending upwards from two opposite lateral sides of the heat-dissipating base. The light-emitting unit is detachably disposed on the heat-dissipating base. The lens unit has a lens and two second retaining structures formed on two opposite lateral sides of the lens, wherein the lens unit is detachably disposed over the light-emitting unit by matching the two first retaining structures and the two second retaining structures. Hence, the base unit, the light-emitting unit and the lens unit can be replaced according to the user's different requirements.
    Type: Application
    Filed: February 1, 2010
    Publication date: May 27, 2010
    Applicant: LEDTECH ELECTRONICS CORP.
    Inventors: CHIEN-CHEN TENG, FANG-PO WANG, WEN-CHIEH CHANG CHIEN
  • Publication number: 20100103657
    Abstract: An improved custom assembly light-emitting module includes a light-emitting unit and a lens unit. The light-emitting unit has two first retaining structures respectively extended upwards from two opposite lateral sides of the light-emitting unit. The lens unit has a solid lens and two second retaining structures respectively formed on two opposite lateral sides of the solid lens. The lens unit is detachably disposed above the light-emitting unit by matching the two first retaining structures and the two second retaining structures. Hence, the light-emitting unit and the lens unit are changeable according to different requirements of users. In addition, each first retaining structure has a concave retaining portion formed on its outside, and the light-emitting unit is inverted and retained in a hooking unit by the two concave retaining portions mating with the hooking unit.
    Type: Application
    Filed: October 24, 2008
    Publication date: April 29, 2010
    Inventors: Chien-Chen Teng, Fang-Po Wang, Wen-Chieh Chang Chien
  • Publication number: 20100020542
    Abstract: A custom assembly light-emitting module includes a base unit, a light-emitting unit and a lens unit. The base unit has a heat-dissipating base and two first retaining structures extending upwards from two opposite lateral sides of the heat-dissipating base. The light-emitting unit is detachably disposed on the heat-dissipating base. The lens unit has a lens and two second retaining structures formed on two opposite lateral sides of the lens, wherein the lens unit is detachably disposed over the light-emitting unit by matching the two first retaining structures and the two second retaining structures. Hence, the base unit, the light-emitting unit and the lens unit can be replaced according to the user's different requirements.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 28, 2010
    Inventors: Chien-Chen Teng, Fang-Po Wang, Wen-Chieh Chang Chien
  • Patent number: D554277
    Type: Grant
    Filed: March 31, 2007
    Date of Patent: October 30, 2007
    Assignee: Ledtech Electronics Corp.
    Inventors: Yu-Yang Liu, Wen-Chieh Chang Chien