Patents by Inventor David S. MacKenzie

David S. MacKenzie 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).

  • Publication number: 20090320364
    Abstract: A modular planting system for roof applications includes a plurality of green roof planter modules each comprising a planter including a bottom wall and a plurality of sidewalls that cooperate with the bottom wall to form an interior space, and a biodegradable insert including a bottom wall and a plurality of sidewalls that cooperate with the bottom wall to form an interior space, wherein the insert is adapted to retain a plant matter in the interior space of the insert, the plurality of sidewalls of the insert extend above the plurality of sidewalls of the planter, and wherein the plurality of sidewalls of the insert are adapted to retain a plant matter that extends above the plurality of sidewalls of the planter.
    Type: Application
    Filed: September 3, 2009
    Publication date: December 31, 2009
    Inventor: David S. MacKenzie
  • Publication number: 20080168710
    Abstract: A modular planting system for roof applications includes a plurality of green roof planter modules each including a bottom wall, a plurality of sidewalls that cooperate with the bottom wall to form an interior space, and a plurality of support tabs extending inwardly towards the interior space. Each module further includes a removable collar member extending upwardly from the plurality of sidewalls, wherein the collar member is supported within the interior space by the support tabs, and wherein the collar member is adapted to retain a plant matter that extends above the sidewalls.
    Type: Application
    Filed: January 15, 2007
    Publication date: July 17, 2008
    Inventor: David S. MacKenzie
  • Patent number: PP15989
    Abstract: A new cultivar of Hernaria glabra or rupturewort plant named ‘Sea Foam’, characterized by green centered leaves that are edged in creamy yellow.
    Type: Grant
    Filed: July 20, 2004
    Date of Patent: September 20, 2005
    Inventor: David S. MacKenzie
  • Patent number: PP6960
    Abstract: A lesser periwinkle plant named Ralph Shugert, characterized by its glossy, reflexed foliage which is deep green and surrounded by thin white margins, and its large, deep violet, five-parted flowers.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: August 1, 1989
    Assignee: Hortech
    Inventor: David S. MacKenzie