Patents by Inventor Andrew Tiefel

Andrew Tiefel 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: 6877875
    Abstract: A headlamp includes a base having a front face defining a first imaginary plane along the front face and a first imaginary line orthogonal to the first plane. A light assembly is rotatably secured about the front face to the base. The light assembly includes a bezel having a rear surface defining a second imaginary plane along the rear surface and a second imaginary line orthogonal to the second plane so that the intersection of the first line and the second line defines a rotation angle that varies with the rotation of the light assembly relative to the base, thereby changing the attitude of the headlamp light assembly.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: April 12, 2005
    Assignee: Zen Design Group, LTD
    Inventors: Sun Yu, Andrew Tiefel, David Perrin
  • Patent number: 6860616
    Abstract: An ultraviolet light emitting diode flashlight is contained within a housing having a pen tip extending from the housing and an ink or dye reservoir in fluid communication with the pen tip. The ultraviolet light emitting diode flashlight within the housing emits light capable of inducing fluorescence in the ink or dye. A switch assembly completes an electrical circuit between a light emitting diode and a battery to activate the flashlight. A writing system package includes at least two of: a neon or pastel colored writing surface, a security pen having an ink or dye that fluoresces in the visible portion of the light spectrum upon exposure to ultraviolet light, and an ultraviolet light emitting diode flashlight.
    Type: Grant
    Filed: October 4, 2002
    Date of Patent: March 1, 2005
    Assignee: IQ Hong Kong, Ltd.
    Inventors: Sun Yu, Andrew Tiefel, David Perrin
  • Publication number: 20050036303
    Abstract: An ultraviolet light emitting diode flashlight is contained within a housing having a pen tip extending from the housing and an ink or dye reservoir in fluid communication with the pen tip. The ultraviolet light emitting diode flashlight within the housing emits light capable of inducing fluorescence in the ink or dye. A switch assembly completes an electrical circuit between a light emitting diode and a battery to activate the flashlight. A writing system package includes at least two of: a neon or pastel colored writing surface, a security pen having an ink or dye that fluoresces in the visible portion of the light spectrum upon exposure to ultraviolet light, and an ultraviolet light emitting diode flashlight.
    Type: Application
    Filed: August 30, 2004
    Publication date: February 17, 2005
    Inventors: Sun Yu, Andrew Tiefel, Divid Perrin
  • Publication number: 20040085756
    Abstract: A headlamp includes a base having a front face defining a first imaginary plane along the front face and a first imaginary line orthogonal to the first plane. A light assembly is rotatably secured about the front face to the base. The light assembly includes a bezel having a rear surface defining a second imaginary plane along the rear surface and a second imaginary line orthogonal to the second plane so that the intersection of the first line and the second line defines a rotation angle that varies with the rotation of the light assembly relative to the base, thereby changing the attitude of the headlamp light assembly.
    Type: Application
    Filed: November 6, 2002
    Publication date: May 6, 2004
    Inventors: Sun Yu, Andrew Tiefel, David Perrin
  • Publication number: 20030112623
    Abstract: An ultraviolet light emitting diode flashlight is contained within a housing having a pen tip extending from the housing and an ink or dye reservoir in fluid communication with the pen tip. The ultraviolet light emitting diode flashlight within the housing emits light capable of inducing fluorescence in the ink or dye. A switch assembly completes an electrical circuit between a light emitting diode and a battery to activate the flashlight. A writing system package includes at least two of: a neon or pastel colored writing surface, a security pen having an ink or dye that fluoresces in the visible portion of the light spectrum upon exposure to ultraviolet light, and an ultraviolet light emitting diode flashlight.
    Type: Application
    Filed: October 4, 2002
    Publication date: June 19, 2003
    Applicant: Zen Design Group, Ltd.
    Inventors: Sun Yu, Andrew Tiefel, David Perrin