Patents by Inventor Peter Dröscher

Peter Dröscher 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).

  • Publication number: 20050277625
    Abstract: This invention provides estriol and estetrol prodrugs of general formula (I), in which group Y is bonded to the steroid process for their production, pharmaceutical compositions that contain these compounds, as well as their use for the production of pharmaceutical agents with estrogenic action.
    Type: Application
    Filed: May 23, 2005
    Publication date: December 15, 2005
    Inventors: Ralf Wyrwa, Sven Ring, Peter Droescher, Alexander Hillisch, Walter Elger, Birgitt Schneider, Gudrun Reddersen
  • Publication number: 20050234027
    Abstract: New 17?-fluorosteroid compounds of formula (I) are disclosed: wherein R1 denotes H or methyl; R2 and R3 each denote H, Cl or methyl; and either a double bond or a single bond is present between C-6 and C-7 and also C-9 and C-10 of the steroid ring system respectively. These compounds have an activity profile with hybrid character so that they act as inhibitors for 5?-reductase and as high potency gestagens. Pharmaceutical compositions containing them are disclosed. They are suitable for treatment of conditions, which are caused by high levels of androgen in organs and tissues. These new compounds can be used in combination with other hormonal substances, such as estrogens, testosterone and other androgens, as contraceptives and for other applications.
    Type: Application
    Filed: April 13, 2005
    Publication date: October 20, 2005
    Inventors: Ulrich Bothe, Peter Droescher, Walter Elger, Gudrun Reddersen, Bernd Menzenbach, Hans-Udo Schweikert, Alexander Hillisch, Birgett Schneider
  • Patent number: 6855836
    Abstract: The invention relates to 17-methylene steroids, process for their production and pharmaceutical compositions that contain these compounds. The compounds according to the invention have a hybrid-type profile of action in the sense that they act as inhibitors of 5?-reductase and simultaneously as gestagens. They are therefore suitable for treating diseases that are the result of elevated androgen levels in certain organs and tissues in men and women. Together with other hormonal substances, such as an estrogen, testosterone or a strong androgen, the compounds according to the invention are suitable as contraceptive agents for women and for men.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: February 15, 2005
    Assignee: Jenapharm GmbH & Co. KG
    Inventors: Bernd Menzenbach, Peter Droescher, Walter Elger, Alexander Hillisch, Gunter Kaufmann, Hans-Udo Schweikert, Gerd Muller
  • Publication number: 20050004127
    Abstract: The invention relates to new quinoline, isoquinoline and phthalazine derivatives as antagonists of the gonadotropin-releasing hormone.
    Type: Application
    Filed: July 23, 2004
    Publication date: January 6, 2005
    Inventors: Peter Strehlke, Peter Droescher, Ulrich Buehmann, Norbert Schmees, Peter Muhn, Holger Hess-Stumpp, Roland Kuhne, Eckhard Guenther, Emmanuel Polymeropoulos, Antonius Ter Laak
  • Publication number: 20040254249
    Abstract: Compounds of Formula 1 1
    Type: Application
    Filed: June 24, 2004
    Publication date: December 16, 2004
    Inventors: Stefan Jaroch, Manfred Lehmann, Norbert Schmees, Bernd Buchmann, Harmur Rehwinkel, Peter Droescher, Werner Skuballa, Konrad Krolikiewicz, Hartwig Hennekes, Heike Schaecke, Arndr Schottelius
  • Publication number: 20040248921
    Abstract: New 17-methylene-4-azasteroid compounds of formula I: 1
    Type: Application
    Filed: August 6, 2004
    Publication date: December 9, 2004
    Inventors: Bernd Menzenbach, Peter Droescher, Alexander Hillisch, Walter Elger, Hans-Udo Schweikert
  • Patent number: 6790858
    Abstract: The present invention relates to a compound of formula (I): where R1-R6, W, X, and Y are defined herein, a composition includung the compound of formula (I), and a method for, e.g., male birth control, including administering an effective amount of a compound of formula (I) to a patient in need thereof.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: September 14, 2004
    Assignee: Zentaris AG
    Inventors: Peter Strehlke, Peter Droescher, Ulrich Buehmann, Norbert Schmees, Peter Muhn, Holger Hess-Stumpp, Roland Kühne, Eckhard Guenther, Emmanuel Polymeropoulos, Antonius M. Ter Laak
  • Patent number: 6777409
    Abstract: The compound of formula 1 useful in the treatment of inflammation.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: August 17, 2004
    Assignee: Schering Aktiengesellschaft Patents
    Inventors: Stefan Jaroch, Manfred Lehmann, Norbert Schmees, Bernd Buchmann, Harmur Rehwinkel, Peter Droescher, Werner Skuballa, Konrad Krolikiewicz, Hartwig Hennekes, Heike Schaecke, Arndt Schottelius
  • Publication number: 20030105328
    Abstract: The invention relates to new quinoline, isoquinoline and phthalazine derivatives as antagonists of the gonadotropin-releasing hormone.
    Type: Application
    Filed: February 21, 2002
    Publication date: June 5, 2003
    Applicant: Schering AG
    Inventors: Peter Strehlke, Peter Droescher, Ulrich Buehmann, Norbert Schmees, Peter Muhn, Holger Hess-Stumpp, Ronald Kuhne, Eckhard Guenther, Emmanual Polymeropoulos, Antonius Ter Laak
  • Patent number: 6517078
    Abstract: A face seal device for use with components rotating at a high rotational speed includes a non-rotating face seal ring (5) and a rotary face seal ring (11). The rotary face seal ring is mounted in a loose fit for common rotation with a rotating component and includes a sealing face (6) which, in operation, is essentially radially aligned for cooperation with an opposite sealing face (16) of the non-rotating face seal ring. A heavy-mass-contributing element (22) is arranged to rotate in common with the rotating component and engages a portion of the rotary face seal ring. The center of gravity of the heavy-mass-contributing element is axially spaced from that of the rotary face seal ring, whereby, in operation, a torque directed towards the non-rotating face seal ring is applied to the rotary face seal ring. This torque arises from the centrifugal forces that correspond to the mass-contributing element and the spacing between the centers of gravity.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: February 11, 2003
    Assignee: Burgmann Dichtungswerke GmbH and Co. KG
    Inventors: Andreas Schruefer, Werner Wolf, Guenther Lederer, Peter Droescher, Josef Nosowicz, Georg Steigenberger
  • Patent number: 6436917
    Abstract: New non-estrogenic derivative compounds of estradiol, which have no estrogenic activity and comparatively high anti-oxidative activity, are disclosed. These new non-estrogenic derivative compounds are potentially useful as non-estrogenic antioxidants, especially for administration in post-menopausal women and in men. The compounds of the invention can also inhibit aromatase and sulfatase.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: August 20, 2002
    Assignee: Jenapharm GmbH & Co. KG
    Inventors: Peter Droescher, Bernd Menzenbach, Wolfgang Roemer, Birgitt Schneider, Walter Elger, Guenter Kaufmann
  • Publication number: 20020091112
    Abstract: The invention relates to 17-methylene steroids, process for their production and pharmaceutical compositions that contain these compounds.
    Type: Application
    Filed: January 25, 2002
    Publication date: July 11, 2002
    Inventors: Bernd Menzenbach, Peter Droescher, Walter Elger, Alexander Hillisch, Gunter Kaufmann, Hans-Udo Schweikert, Gerd Muller
  • Publication number: 20020077356
    Abstract: The compound of formula 1 1
    Type: Application
    Filed: July 27, 2001
    Publication date: June 20, 2002
    Inventors: Stefan Jaroch, Manfred Lehmann, Norbert Schmees, Bernd Buchmann, Harmur Rehwinkel, Peter Droescher, Werner Skuballa, Konrad Krolikiewicz, Hartwig Hennekes, Heike Schaecke, Arndr Schottelius
  • Publication number: 20020065258
    Abstract: New non-estrogenic derivative compounds of estradiol, which have no estrogenic activity and comparatively high anti-oxidative activity, are disclosed. These new non-estrogenic derivative compounds are potentially useful as non-estrogenic antioxidants, especially for administration in post-menopausal women and in men. The compounds of the invention can also inhibit aromatase and sulfatase.
    Type: Application
    Filed: November 21, 2001
    Publication date: May 30, 2002
    Inventors: Peter Droescher, Bernd Menzenbach, Wolfgang Roemer, Birgitt Schneider, Walter Elger, Guenter Kaufmann
  • Publication number: 20020060429
    Abstract: A face seal device for use with components rotating at a high rotational speed includes a non-rotating face seal ring (5) and a rotary face seal ring (11). The rotary face seal ring is mounted in a loose fit for common rotation with a rotating component and includes a sealing face (6) which, in operation, is essentially radially aligned for cooperation with an opposite sealing face (16) of the non-rotating face seal ring. A heavy-mass-contributing element (22) is arranged to rotate in common with the rotating component and engages a portion of the rotary face seal ring. The center of gravity of the heavy-mass-contributing element is axially spaced from that of the rotary face seal ring, whereby, in operation, a torque directed towards the non-rotating face seal ring is applied to the rotary face seal ring. This torque arises from the centrifugal forces that correspond to the mass-contributing element and the spacing between the centers of gravity.
    Type: Application
    Filed: November 23, 2001
    Publication date: May 23, 2002
    Applicant: BURGMANN DICHTUNGSWERKE GmbH and Co. KG
    Inventors: Andreas Schruefer, Werner Wolf, Guenther Lederer, Peter Droescher, Josef Nosowicz, Georg Steigenberger
  • Patent number: 6172056
    Abstract: The method of prophylaxis and therapy of radical-mediated cell damage includes administering an effective amount of at least one steroid and at least one pharmaceutical adjuvant to a human being. The at least one steroid is selected from the group consisting of ent-estradiol, 17&agr;-estradiol, 8-dehydro-estradiol, 8-dehydro-17&agr;-estradiol, 8(14)-dehydroestradiol, 6,8-didehydro-17&agr;-estradiol, 6-dehydroestriol, 9(11)-dehydroestriol, 20-hydroxymethyl-3-hydroxy-19-norpregna-1,3,5(10)-triene, 14&agr;, 15&agr;-methylene-8-dehydroestradiol, 14&agr;, 15&agr;-methylene-estradiol, 2-hydroxy-estradiol-3-methyl ether, 3-hydroxy-1,3,5(10)-estratriene-17S-spirooxirane, 3-hydroxy-1,3,5(10),9(11)-estratetraene-17S-spirooxirane, and 14&bgr;,15&bgr;-methylene-8-dehydroestradiol.
    Type: Grant
    Filed: May 9, 1996
    Date of Patent: January 9, 2001
    Assignee: Jenapharm GmbH & Co. KG
    Inventors: Peter Droescher, Bernd Menzenbach, Kurt Ponsold, Bernd Undeutsch, Michael Oettel, Wolfgang Römer, G{umlaut over (u)}nter Kaufmann, Jens Schroeder
  • Patent number: 5977096
    Abstract: Novel substituted steroid compounds are disclosed which are more effective than known radical-trapping agents in methods of prophylaxis and therapy of radical-mediated cell damage and of treatment of diseases due to radical-mediated cell damage. The novel substituted steroid compounds can be made from steroids having an estrane, androstane, pregnane or cholestane basic skeleton and have a radical-attracting aromatic substituent of the general formula --(CH.sub.2).sub.n X, or .dbd.CH--(CH.sub.2).sub.m X at the 17 or 6 position of the steroid nucleus, wherein X=Y, OY, SY, SeY or NHY; n=0 to 5; m=n-1 and Y is a phenyl group having five substituents A, B, C, D and E, wherein A to E is independently H, alkyl, Oalkyl, Oacyl, OH, or one of the substituents B, C or D is NR.sub.2 wherein R=alkyl and each of the other substituents is hydrogen. Pharmaceutical compositions containing the novel substituted steroid compounds and methods of making them are also part of the invention.
    Type: Grant
    Filed: February 20, 1999
    Date of Patent: November 2, 1999
    Assignee: Jenapharm GmbH & Co. KG
    Inventors: Peter Droescher, Bernd Menzenbach, Kurt Ponsold, Bernd Undeutsch, Michael Oettel, Wolfgang Romer, Gunter Kaufmann, Jens Schroder
  • Patent number: 5914325
    Abstract: Disclosed are estrane derivatives having a radical-attracting aromatic substituent of the general formula --(CH.sub.2).sub.n X attached to the 17-position of the steroid nucleus, wherein X and n are as defined by the specification. The compounds are useful as antitumor agents and in the treatment of cardiac and circulatory disorders.
    Type: Grant
    Filed: July 8, 1996
    Date of Patent: June 22, 1999
    Assignee: Jenapharm GmbH
    Inventors: Peter Droescher, Bernd Menzenbach, Kurt Ponsold, Bernd Undeutsch, Michael Oettel, Wolfgang Romer, Gunter Kaufmann, Jens Schroder
  • Patent number: 5795883
    Abstract: Novel androgens having one or more substituents providing radical trapping properties are disclosed as useful in methods of treating androgen deficiency in man, benign prostate hypotropy and carcinoma of the prostate, osteoporosis, vascular disease-induced or ischemically-induced cerebral edemas, subarachnoid hemorrhages, ischemic shock, cerebral insult, Parkinson's disease and Alzheimer's disease. The androgen compound used for treating androgen deficiency in man has a steroid ring with an .alpha.-tocopherol group or a trolox group substituent.
    Type: Grant
    Filed: November 6, 1995
    Date of Patent: August 18, 1998
    Assignee: Jenapharm GmbH
    Inventors: Rolf-Dieter Hesch, Michael Oettel, Peter Droescher, Sigfrid Schwarz, Bernd Menzenbach, Wolfgang Romer, Gunter Kaufmann, Jens Schroder