Patents by Inventor Roberto Zanin

Roberto Zanin 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).

  • Patent number: 5665671
    Abstract: A compound for plant defense from parasites, including fungi and bacteria, utilizing lower concentrations of Cu than available Cu-based fungicides. Until now compounds with high Cu concentration have been used, which damage the environment. This compound instead, besides containing Cu in minimal concentration, has a greater stability, due to the particular bond formed between the principal constituents. The compound is thus very valuable in the defense of plants, because it makes possible reducing treatments and it minimizes environmental risks.
    Type: Grant
    Filed: July 20, 1995
    Date of Patent: September 9, 1997
    Inventor: Roberto Zanin
  • Patent number: 5415778
    Abstract: A method and related product for purification of waste water, especially of water polluted with phosphorus, nitrogen, heavy metals, and chlorinated solvents. The purification process consists of:a) adding two liquid mixtures in sequence to the waste water;b) letting the pollutants react with the two mixtures;c) subsequently removing the sludge that forms.One of the two liquid mixtures in question is a liquid mixture of two acids that may be extracted from lignite, leonardite and fossils of vegetal origin like peat.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: May 16, 1995
    Assignee: HydroGeo North America L.L.C.
    Inventors: Roberto Zanin, Gaetano Boetti