Patents by Inventor Leopold Flohé

Leopold Flohé 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: 20050143559
    Abstract: The present invention provides novel enzymes, tryparedoxins, their isolation from Crithidia fasciculata, a method for the production thereof in genetically transformed bacteria, and their use as molecular targets for the discovery of trypanocidal drugs
    Type: Application
    Filed: October 12, 2004
    Publication date: June 30, 2005
    Inventors: Leopold Flohe, Everson Nogoceke, Henryk Kalisz, Marisa Montemartini
  • Patent number: 6884601
    Abstract: The invention relates to a method to detect male antifertility problems based on the determination of latent phospholipid hydroperoxide glutathione peroxidase (PHGPx).
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: April 26, 2005
    Inventors: Leopold Flohe, Fulvio Ursini, Antonella Roveri
  • Publication number: 20040105863
    Abstract: The invention relates to a method to search for male antifertility drugs based on activity determination of phospholipid hydroperoxide glutathione peroxidase (PHGPx) derived from human tissue or human cells or from related mammalian species.
    Type: Application
    Filed: October 16, 2003
    Publication date: June 3, 2004
    Inventors: Leopold Flohe, Fulvio Ursini
  • Publication number: 20030162171
    Abstract: Tuberculosis is an infectious disease which kills more than three million people every year. Although both a vaccine and various methods of diagnosis and treatment are available, the efficacy of these measures is in urgent need of improvement given that the number of new cases is once again on the increase. Research focuses, among other things, on the characterization of antigens secreted in the early stages of the infection as they constitute the first point of contact of the immune system with the pathogen. The 40 KD-antigen described herein is present in vivo as a hexamer and, despite its high molecular weight and lack of a signal sequence, is present extracellularly after only a few days of growth. Functionally, it is an L-alanine dehydrogenase and reacts with the monoclonal antibody HBT-10 directed against this protein. HBT-10 was the first known antibody specific to a protein of M. tuberculosis which did not cross-react with the vaccine strain M. bovis BCG.
    Type: Application
    Filed: July 28, 1999
    Publication date: August 28, 2003
    Inventors: LEOPOLD FLOHE, MAHAVIR SINGH, BERND HUTTER, AREND KOLK
  • Publication number: 20030082202
    Abstract: The present invention provides novel enzymes, tryparedoxins, their isolation from Crithidia fasciculata, a method for the production thereof in genetically transformed bacteria, and their use as molecular targets for the discovery of trypanocidal drugs
    Type: Application
    Filed: July 12, 2002
    Publication date: May 1, 2003
    Inventors: Leopold Flohe, Everson Nogeceke, Henryk Kalisz, Marisa Montemartini
  • Publication number: 20020155562
    Abstract: The present invention describes an enzyme showing glutathionylspermidine synthetase-activity and being distinct from known enzymes with similar activities in several physicochemical parameters, a novel process to isolate said enzyme from Crithidia fasciculata, tools for the production thereof in genetically transformed organisms, and its use as a molecular target for the discovery of trypanocidal drugs.
    Type: Application
    Filed: September 17, 2001
    Publication date: October 24, 2002
    Applicant: Leopold Flohe
    Inventors: Leopold Flohe, Kerstin Koenig, Ulrich Menge
  • Patent number: 6432671
    Abstract: The present invention provides novel enzymes, tryparedoxins, their isolation from Crithidia fasciculata, a method for the production thereof in genetically transformed bacteria, and their use as molecular targets for the discovery of trypanocidal drugs.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: August 13, 2002
    Inventors: Leopold Flohé, Everson Nogoceke, Henryk Kalisz, Marisa Montemartini
  • Patent number: 6291217
    Abstract: The present invention describes an enzyme showing glutathionylspermidine synthetase-activity and being distinct from known enzymes with similar activities in several physicochemical parameters, a novel process to isolate said enzyme from Crithidia fasciculata, tools for the production thereof in genetically transformed organisms, and its use as a molecular target for the discovery of trypanocidal drugs.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: September 18, 2001
    Inventors: Leopold Flohé, Kerstin Koenig, Ulrich Menge
  • Patent number: 5637503
    Abstract: Plasmids containing synthetic DNA sequences are described which are suitable for the expression of the intermediate protein of the recombinant scu-PA (i.e., the unglycosylated protein moiety of the single chain prourokinase) in Enterobacteriaceae, especially in E. coli, with expression rates far higher than those obtainable according to prior methods. The plasmids comprise operons that include a regulatable, optionally synthetic, promotor, a Shine-Dalgarno sequence, a start codon, a synthetic structural gene with selected codon usage, and downstream of the structural gene, 1 to 2 transcription terminators. The preparation of the plasmids and of synthetic DNA-sequences starting from commercially available plasmids and intermediates is described. The intermediate protein, expressed in high yields by using the plasmids for transforming suitable hosts, may be refolded to produce the therapeutically useful plasminogen activator recombinant scu-PA.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: June 10, 1997
    Assignee: Gruenenthal GmbH
    Inventors: Regina E. Brigelius-Flohe', Leopold Flohe', Wolfgang Hillen, Gerd J. Steffens, Wolfgang Strassburger, Martin R. F. Wilhelm
  • Patent number: 5362492
    Abstract: The use of superoxide dismutases for the prevention and/or treatment of organ failure in patients at risk with polytrauma caused by accidents is disclosed. The superoxide dismutases are administered according to the invention in daily doses of from 1 g to 15 g for a period of at least two days following the initial trauma (i.e. the accident), especially by intravenous infusion. Preferably natural or recombinant human copper/zinc superoxide dismutase is used.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: November 8, 1994
    Assignee: Gruenenthal GmbH
    Inventors: Achim Schuettler, Leopold Flohe, Volker Buehren, Ingo Marzi, Otmar Trentz
  • Patent number: 4906614
    Abstract: A method of preventing or treating posttraumatic nervous injuries by administering a compound of the formula: ##STR1## wherein R.sub.1 is hydrogen, a lower alkyl group, cyclohexyl or benzyl; Z is one of the groups ##STR2## if Z is a group (a), R.sub.2 and R.sub.3 together represent an additional bond between the carbon atoms bearing them, or if Z represents a group (b), R.sub.2 is hydrogen; R.sub.4 is hydrogen or lower alkyl; R.sub.5 is hydrogen, lower alkyl or phenyl, and R.sub.6 is hydrogen or methyl. Hydrates or pharmaceutically acceptable acid addition salts may also be used in the method. Pharmaceutical compositions used in this method containing such compounds in a prophylactically or therapeutically effective amount may be administered by infusion, injection, orally, perorally, rectally, percutaneously or other route.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: March 6, 1990
    Assignee: Gruenenthal GmbH
    Inventors: Hubert Giertz, Hans Barth, Leopold Flohe
  • Patent number: 4788179
    Abstract: A method of treating patients suffering from amyotrophic lateral sclerosis (ALS) by administering dipeptide derivatives of the formula ##STR1## wherein R.sub.1 is hydrogen, a lower alkyl group, cyclohexyl or benzyl; Z is one of the groups ##STR2## wherein if Z is a group (a), R.sub.2 and R.sub.3 together represent an additional bond between the carbon atoms bearing R.sub.2 and R.sub.3, or if Z is a group (b), R.sub.2 is hydrogen; R.sub.4 and R.sub.5 are hydrogen or lower alkyl, or R.sub.5 may also be phenyl; and R.sub.6 is hydrogen or methyl; hydrates or pharmaceutically acceptable acid additions salts thereof. Pharmaceutical compositions containing effective ALS symptom counteracting amounts of such dipeptide derivatives may be administered by infusion, injection, orally, rectally or percutaneously.
    Type: Grant
    Filed: December 11, 1985
    Date of Patent: November 29, 1988
    Assignee: Gruenenthal GmbH
    Inventors: Leopold Flohe, Hans Barth