Patents by Inventor Ludwig Nuesslein

Ludwig Nuesslein 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).

  • Fungicidal 2-sulfinyl-5-sulfonyl-1,3,4-thiadiazole derivatives
    Patent number: 4369185
    Abstract: A method for production of novel antifungal 1,3,4-thiadiazole derivatives having a composition of the general formula ##STR1## wherein R.sub.1 and R.sub.2 are independently alkyl with from 1 to 6 carbon atoms, alkenyl with from 2 to 6 carbon atoms, alkinyl with from 2 to 6 carbon atoms or cycloalkyl with from 3 to 6 carbon atoms is provided. 1,3,4-thiadiazole derivatives of a composition of the general formula ##STR2## are reacted with a compound having the composition of the general formula R.sub.1 -SH resulting in compounds of a composition having the formula ##STR3## which in turn are oxidized with an organic or inorganic oxidant.
    Type: Grant
    Filed: August 12, 1980
    Date of Patent: January 18, 1983
    Assignee: Schering Aktiengesellschaft
    Inventors: Ludwig Nuesslein, Dietrich Baumert, Georg-Alexander Hoyer, Ernst A. Pieroh