Patents by Inventor Donald P. Gieschen

Donald P. Gieschen 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).

  • 1,4-Bis(2-haloethyl)-1,4-diazabicyclo[2.2.1]-heptane dihydrogen dimaleate and selected salts
    Patent number: 4306071
    Abstract: 1,4-Bis(2'-haloethyl)-1,4-diazabicyclo[2.2.1]-heptane derivatives, such as diperchlorate, dichloride, diacetate, dibenzoate, diascorbate, disalicylate, ditartrate, disaccharin, dihydrogen dimaleate, together with ethyl sulfonate and periodate.
    Type: Grant
    Filed: November 14, 1979
    Date of Patent: December 15, 1981
    Assignee: The United States of America as represented by the Department of Health & Human Services
    Inventors: George R. Pettit, Donald P. Gieschen, William E. Pettit