08707618 is referenced by 2 patents and cites 64 patents.

A green roof planter module includes a planter including a bottom wall, a plurality of sidewalls each including an upper portion and a lower portion, wherein the bottom wall and the plurality of sidewalls cooperate with one another to form an interior space, and a biodegradable collar member extending upwardly from at least a select one of the biodegradable sidewalls, wherein at least a portion of the collar member is in-molded within the upper portion of at least one of the sidewalls, and wherein the collar member is adapted to retain a plant matter that extends above the plurality of sidewalls.

Title
Modular planting system for roof applications
Application Number
13/787002
Publication Number
8707618 (B2)
Application Date
March 6, 2013
Publication Date
April 29, 2014
Inventor
David S MacKenzie
Nunica
MI, US
Agent
Price Heneveld
Assignee
Hortech
MI, US
IPC
A01G 9/02
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