Patents by Inventor Erich Gerhards

Erich Gerhards 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).

  • Corticoid-containing inhalants
    Patent number: 4039668
    Abstract: Inhalants comprising at least one corticoid of the general formula ##STR1## wherein --B--A-- is CH.sub.2 --CH.sub.2 --, CH=CH-- or CCl=CH--; X is a hydrogen atom, a fluorine atom, or methyl; Y is a hydrogen atom, a fluorine atom or a chlorine atom; Z is methylene, hydroxymethylene, fluoromethylene, a chloromethylene, or carbyl; R.sub.1 is a hydrogen atom or methyl and R.sub.2 is a hydrogen atom, or R.sub.1 and R.sub.2 collectivey are isopropylidenedioxy; and R.sub.3 is hydrocarbon of 1-12 carbon atoms, are useful for the treatment of allergic diseases of the respiratory tract.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: August 2, 1977
    Assignee: Schering Aktiengesellschaft
    Inventors: Peter Fuchs, Erich Gerhards, Heinz Matthes, Hans Wendt, Rudolf Wiechert
  • Hydroxy phenylbutazone derivatives and their preparation
    Patent number: 3968219
    Abstract: Bis-hydroxyphenylbutazone esters of alkanedioic acids of the formula ##SPC1##Wherein n is an integer from 1 to 18, inclusive; R.sub.1 is hydrocarbon of 3-9 carbon atoms, optionally substituted by oxo or interrupted by thia, sulfinyl, or sulfonyl; and R.sub.2 is a hydrogen atom, a fluorine atom, a chlorine atom, lower alkyl of 1-4 carbon atoms, or trifluoromethyl, preferably in the ortho or para position, possess topical anti-inflammatory activity.
    Type: Grant
    Filed: July 28, 1975
    Date of Patent: July 6, 1976
    Assignee: Schering Aktiengesellschaft
    Inventors: Dieter Rahtz, Henning Koch, Erich Gerhards