Patents by Inventor Rene OTTEVANGER

Rene OTTEVANGER 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).

  • Substrate for plants in an aquarium, terrarium and the like
    Publication number: 20090307972
    Abstract: A substrate for plants comprises at least two connected layers, one layer of which comprises a porous polyester material, and the other layer of which comprises another porous material. The water-retaining properties of this layer are better than those of the porous polyester material. The layer of porous polyester material may comprise polyester fibres, preferably polyester fibres which are entangled and/or arranged arbitrarily.
    Type: Application
    Filed: June 11, 2008
    Publication date: December 17, 2009
    Inventor: Rene OTTEVANGER