Patents by Inventor Walter von Bebenburg, deceased

Walter von Bebenburg, deceased 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).

  • 2-Amino-3-carbethoxyamino-6-(p-fluoro-benzylamino)-pyridine-maleate
    Patent number: 4481205
    Abstract: There is prepared 2-amino-3-carbethoxyamino-6-(p-fluoro-benzylamino)-pyridine-maleate of the formula ##STR1## The compound has antiphlogistic and analgesic properties in the same manner as the known hydrochloride salt. In contrast to the hydrochloride 2-amino-3-carbethoxyamino-6-(p-fluoro-benzylamino)-pyridine-maleate can be produced without a disturbing blue coloration. This maleate generally is formed from a mixture of two crystal modifications A and B, whereby there is especial advantageous in regard to isolation as well as the galenical preparations a mixture entriched in modification A (60 to 90% modification A).
    Type: Grant
    Filed: September 2, 1981
    Date of Patent: November 6, 1984
    Assignee: Degussa Aktiengesellschaft
    Inventors: Walter von Bebenburg, deceased, Siegfried Pauluhn