Patents by Inventor Walter Ried

Walter Ried 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).

  • 4-Quinazolinyl-guanidines
    Patent number: 4128643
    Abstract: (2-Amino-4-quinazolinyl)-quanidines of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and n have the defined meanings, and their physiologically tolerable acid addition salts, process for preparing these compounds, pharmaceutical preparations containing them and their use as medicines.
    Type: Grant
    Filed: May 26, 1977
    Date of Patent: December 5, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wulf Merkel, Hans G. Alpermann, Karl Geisen, Norbert Kothe, Walter Ried