Patents by Inventor David L. MacKellar

David L. MacKellar 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).

  • Low glare LED luminaire
    Patent number: 9903563
    Abstract: An LED luminaire with reduced glare provides a polar arrayed light gradient on a diffuser lens and replicates the appearance of a filament or tube lamp. The luminaire includes a housing having an opening, a diffuser lens extending across the opening, and a plurality of LEDs positioned within the housing behind the diffuser lens. The plurality of LEDs are arranged to generate a composite light pattern having a polar arrayed light gradient across an aperture of the diffuser lens. The polar arrayed light gradient has a light intensity that decreases concentrically with increasing radius.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: February 27, 2018
    Assignee: LANDSCAPE FORMS, INC.
    Inventors: Ricky A. Utting, David L. MacKellar, Christopher E. Briolat
  • LOW GLARE LED LUMINAIRE
    Publication number: 20170292680
    Abstract: An LED luminaire with reduced glare provides a polar arrayed light gradient on a diffuser lens and replicates the appearance of a filament or tube lamp. The luminaire includes a housing having an opening, a diffuser lens extending across the opening, and a plurality of LEDs positioned within the housing behind the diffuser lens. The plurality of LEDs are arranged to generate a composite light pattern having a polar arrayed light gradient across an aperture of the diffuser lens. The polar arrayed light gradient has a light intensity that decreases concentrically with increasing radius.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 12, 2017
    Applicant: LANDSCAPE FORMS, INC.
    Inventors: Ricky A. UTTING, David L. MacKELLAR, Christopher E. BRIOLAT
  • Street light
    Patent number: D718483
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: November 25, 2014
    Assignee: Landscape Forms, Inc.
    Inventors: Tony Meredith, Cormac Eubanks, David L. MacKellar, Brian P. Revoir