Patents by Inventor Leo Hans Plankl

Leo Hans Plankl 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).

  • Impregnation of masonry having a neutrally or acidly reaction surface
    Patent number: 4002800
    Abstract: An improvement in a process for the impregnation of masonry with an alcoholic or benzine solution of an alkyltrialkoxysilane or a partial condensation product thereof which improvement involves including in the alcoholic or benzine solution an organofunctional silane having a basic organo group or an alcoholate of silicon, a metal of an element selected from the group consisting of the First Main Group of the Periodic System, a metal of the Second Main Group of the Periodic System, a metal of the Fourth Sub-Group of the Periodic System, and a metal of the Fifth Sub-Group of the Periodic System; an improved composition for the impregnation of masonry comprising a mixture of an alkyltrialkoxysilane or a partial condensation product thereof and an organofunctional silane having a basic organo group or an alcoholate of an element selected from the group consisting of silicon, a metal of the First Main Group of the Periodic System, a metal of the Second Main Group, a metal of the Fourth Sub-Group of the Periodic S
    Type: Grant
    Filed: April 5, 1974
    Date of Patent: January 11, 1977
    Assignee: Dynamit Nobel Aktiengesellschaft
    Inventors: Heinz Nestler, Jurgen Amort, Leo Hans Plankl