Patents by Inventor Per Haggblom

Per Haggblom 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).

  • Process and an apparatus for killing trees or woody plants
    Patent number: 4110933
    Abstract: Trees and bushes are killed by means of a biocide. A sharp-pointed carrier for the biocide is inserted between the bark and the wood of the trees or bushes, to make the biocide contact the phloem and the outermost xyleme.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: September 5, 1978
    Assignee: Edsbyns Industri AB
    Inventor: Per Haggblom