Patents by Inventor Sven Ring

Sven Ring 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).

  • 14,15-cyclopropano steroids of the 19-norandrostane series, method for the production thereof and pharmaceutical preparations containing said compounds
    Patent number: 6388109
    Abstract: Described are new 14,15-cyclopropano steroids of the 19-norandrostane series of general formula (I) and their pharmaceutically acceptable salts, a process for their production and pharmaceutical preparations that contain these compounds. The compounds are distinguished by hormonal (gestagenic and/or androgenic) activity.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: May 14, 2002
    Assignee: Jenapharm GmbH & Co. KG
    Inventors: Sigfrid Schwarz, Gerd Schubert, Sven Ring, Walter Elger, Birgitt Schneider, Günter Kaufmann, Lothar Sobek
  • S-substitute 11&bgr;-benzaldoxime-estra-4, 9-diene-carbonic acid thiolesters, method for the production thereof and pharmaceutical preparations containing these compounds
    Patent number: 6365582
    Abstract: Thiol esters of S-substituted 11&bgr;-benzaldoxime-estra-4,9-dien-carboxylic acids of the formula I their pharmaceutically acceptable salts, a method for their synthesis and pharmaceutical preparations containing these compounds are described. These compounds bind to progesterone receptors and have distinctly reduced anti-glucocorticoid action.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: April 2, 2002
    Assignee: Jenapharm GmbH & Co. KG
    Inventors: Gerd Schubert, Sven Ring, Guenther Kaufmann, Walter Elger, Birgit Schneider
  • Steroid intermediate products and method of their production
    Patent number: 5831104
    Abstract: The invention is directed to novel steroid intermediate products of general formula I ##STR1## The steroid intermediate products which can be isolated according to the invention are suitable for the synthesis of 13-ethyl-11-methylene-18,19-bisnor-17.alpha.-pregn-4-en-20-in-17-ol (desogestrel).Further, processes for producing the steroid intermediate products of general formula I are described. The olefination of the 11-oxo steroids is carried out under the influence of ultrasound.
    Type: Grant
    Filed: September 9, 1994
    Date of Patent: November 3, 1998
    Assignee: Jenapharm GmbH
    Inventors: Sven Ring, Gerhard Teichmueller, Gisela Weber, Sigfrid Schwarz, Bernd Erhart, Bernd Undeutsch, Harald Raethe, Peter Moellmann, Carmen Pfeiffer, Hans-Joachim Palme