Patents by Inventor Gunter Bertelmann

Gunter Bertelmann 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).

  • Guanidinium salts, processes for their manufacture as well as microbicidal preparations containing these compounds
    Patent number: 4271190
    Abstract: Guanidinium salts having the formula ##STR1## wherein R.sup.1 and R.sup.2 are linear alkyl residues,X is an anion, andn is 1 or 2,which possess excellent microbicidal properties, particularly against organisms which have become resistant against other active materials. Methods for preparation of the compounds and solutions containing same are disclosed.
    Type: Grant
    Filed: April 17, 1980
    Date of Patent: June 2, 1981
    Assignee: Th. Goldschmidt AG
    Inventors: Gunter Bertelmann, Ulrich Holtschmidt, Arnold Laqua
  • Alkylated polyamines, their preparation and use as microbiocides
    Patent number: 4120979
    Abstract: This invention relates to a compound or mixture of compounds having the general formula ##STR1## in which R is hydrogen or an alkyl group containing 8 to 18 carbon atoms, at least one R being alkyl, and x is 0 or 1. The invention also relates to a process for making the novel compound or mixture thereof, a process for killing microbes using the novel compound or mixture thereof, and a microbiocidal composition using the novel compound or mixture thereof.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: October 17, 1978
    Assignee: Th. Goldschmidt AG
    Inventors: Gunter Schwarzmann, Ulrich Holtschmidt, Gunter Bertelmann