Patents by Inventor Huaiyao Yuan

Huaiyao Yuan 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).

  • LED lighting unit including elongated heat sink and elongated lens
    Patent number: 7815338
    Abstract: A LED lighting unit including an elongated heat sink having two spaced apart longitudinal grooves, the grooves facing tangentially or at an angle greater than an angle between a tangent of the lighting unit at the groove and a radius of the lighting unit at the groove. At least one LED is mounted to the heat sink between the grooves, and the at least one LED is enclosed by a lens having bulged longitudinal edges by sliding the bulged longitudinal edges into the grooves.
    Type: Grant
    Filed: March 2, 2008
    Date of Patent: October 19, 2010
    Assignee: Altair Engineering, Inc.
    Inventors: Dennis Siemiet, David L Simon, Huaiyao Yuan
  • LENS AND HEATSINK ASSEMBLY FOR A LED LIGHT TUBE
    Publication number: 20090219713
    Abstract: A LED lighting unit including an elongated heat sink having two spaced apart longitudinal grooves, the grooves facing tangentially or at an angle greater than an angle between a tangent of the lighting unit at the groove and a radius of the lighting unit at the groove. At least one LED is mounted to the heat sink between the grooves, and the at least one LED is enclosed by a lens having bulged longitudinal edges by sliding the bulged longitudinal edges into the grooves.
    Type: Application
    Filed: March 2, 2008
    Publication date: September 3, 2009
    Applicant: Altair Engineering, Inc.
    Inventors: Dennis Siemiet, David L. Simon, Huaiyao Yuan