Patents by Inventor Itzhak Spiegel

Itzhak Spiegel 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: 5089263
    Abstract: Microorganisms isolated from soil enriched with chitin or collagen were found to be very effective in controlling soil nematodes, probably by destroying their eggs or egg-shells. Pure culture of such microorganisms were prepared. These microorganisms are formulated into solid or liquid nematicidal compositions and as such used for combating soil-nematode infestations.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: February 18, 1992
    Assignee: Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Itzhak Spiegel, Ilan Chet, Eli Cohn, Sergio Galper