Patents by Inventor Manfred Bohn

Manfred Bohn 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).

  • Patent number: 6007798
    Abstract: A nail varnish comprising a compound having a vasodilating action and a water-insoluble film-forming agent is suitable for treatment of growth disturbances of the nail.
    Type: Grant
    Filed: February 11, 1998
    Date of Patent: December 28, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Bohn, Karl Theodor Kraemer, Horst Ulbricht
  • Patent number: 5824670
    Abstract: 17-Deoxycorticoid-21-carboxylic esters of the formula I ##STR1## are described, in which A is CHOH and CHCl, CH.sub.2, C.dbd.O or 9(11) double bond; Y is H, F or Cl; Z is H, F or CH.sub.3 ; R(1) is aryl or hetaryl and R(2) is H or methyl. They are obtained by reacting a compound of the formula II, ##STR2## in which R(4) is OH, with an activated carboxylic acid of the formula III,R(5)-CO--X-R(1) III.The compounds I possess very strong local and topical antiinflammatory activity and exhibit a very good ratio of local to systemic antiinflammatory effect, which ratio is often clearly superior to that of structurally related corticoid 21-esters which do not carry any aryl or hetaryl group in the 21-ester residue or to that of analogous 17-deoxycorticoids having an unesterified, that is a free, 21-hydroxyl group.
    Type: Grant
    Filed: September 18, 1995
    Date of Patent: October 20, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ulrich Stache, Hans-Georg Alpermann, Manfred Bohn
  • Patent number: 5608093
    Abstract: Corticoid 17-alkyl carbonate 21-carboxylic and carbonic esters of the formula I ##STR1## are described in which A is CHOH and CHCl, CH.sub.2, C.dbd.O or 9(11) double bond; Y is H, F or Cl; Z is H, F or CH.sub.3 ; R(1) is aryl or hetaryl; n and m are zero or 1; R(2) is alkyl or --(CH.sub.2).sub.2 --OCH.sub.3 ; R(3) is H or methyl. They are obtained by reacting a compound of the formula II, ##STR2## in which R(5) is OH, with an activated carboxylic acid of the formula III,R(6)--CO--(O).sub.n --(X)--R(1) III.The compounds I have a very strong local and topical antiinflammatory action and exhibit a very good ratio of local to systemic antiinflammatory effects, which ratio is often markedly superior to that of analogous corticoid 17-alkyl carbonate 21-esters which do not carry any aryl or heteraryl group in the 21-ester radical.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: March 4, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Ulrich Stache, Hans-Georg Alpermann, Walter D urckheimer, Manfred Bohn
  • Patent number: 5264206
    Abstract: A nail lacquer containing at least one film-former which is insoluble in water and at least one substance which has antimycotic activity and is from the group comprising tioconazole, econazole, oxiconazole, miconazole, tolnaftate and naftifine hydrochloride.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: November 23, 1993
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Bohn, Walter Dittmar, Karl Kraemer, Heinz G. Peil, Eberhard Futterer
  • Patent number: 4957730
    Abstract: A nail varnish comprising a water-insoluble film-forming substance and an antimycotic compound which is a 1-hydroxy-2-pyridone I of the general formula ##STR1## in which R.sup.1 is a hydrocarbon group which contains from 6 to 9 carbon atoms, but is free from olefinic and acetylenic bonds, one of the groups R.sup.2 and R.sup.4 is hydrogen and the other is hydrogen, methyl or ethyl and R.sup.3 is alkyl having up to two carbon atoms, said antimycotic ingredient being present in free form or in the form of a salt.
    Type: Grant
    Filed: December 17, 1986
    Date of Patent: September 18, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Bohn, Walter Dittmar, Heinz G. Peil, Eberhard Futterer, Karl Kraemer