Patents by Inventor Helmut Luchtenberg

Helmut Luchtenberg 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: 20020169168
    Abstract: A pharmaceutical formulation comprising by weight 30 to 95% of 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl) -quinoline-3-carboxylic acid; 4.5 to 25% of a dry binder based on cellulose; 0 to 30% of a disintegration auxiliary based on starch; 0.5 to 10% of a disintegration auxiliary based on a cellulose derivative and/or a cross-linked polyvinyl-pyrrolidone; 0 to 2% of a flow-improving agent, and 0 to 3% of a lubricant. Tablets and capsules made from granules of the formulation, about 0.8 to 2 mm in size, exhibit high bioavailability and excellent storage stability.
    Type: Application
    Filed: May 23, 2002
    Publication date: November 14, 2002
    Inventors: Bernd Streuff, Helmut Luchtenberg
  • Publication number: 20020025964
    Abstract: A pharmaceutical formulation comprising by weight 30 to 95% of 1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-quin85 oline-3-carboxylic acid; 4.5 to 25% of a dry binder based on cellulose; 0 to 30% of a disintegration auxiliary based on starch; 0.5 to 10% of a disintegration auxiliary based on a cellulose derivative and/or a cross-linked polyvinyl-pyrrolidone; 0 to 2% of a flow-improving agent, and 0 to 3% of a lubricant. Tablets and capsules made from granules of the formulation, about 0.8 to 2 mm in size, exhibit high bioavailability and excellent storage stability.
    Type: Application
    Filed: September 6, 2001
    Publication date: February 28, 2002
    Inventors: Bernd Streuff, Helmut Luchtenberg
  • Patent number: 5861173
    Abstract: This invention provides a long-lasting release solid nifedipine preparation which exhibits clinically sufficient effect when administered once per day. A press coated tablet whose core and shell each contains nifedipine, the dissolution rate of nifedipine from said tablet being (a) in the dissolution test using a sinker according to method 2 of the dissolution test method as prescribed by the Pharmacopoeia of Japan, after 2 hours 10-40% after 4 hours 30-65% after 6 hours at least 55%, and (b) in the dissolution test according to the disintegration test method as prescribed by the Pharmacopoeia of Japan, after 3 hours 20-45% after 4 hours 30-65%.
    Type: Grant
    Filed: November 21, 1996
    Date of Patent: January 19, 1999
    Assignee: Bayer Aktiengesellschaft
    Inventors: Takaaki Nishioka, Kenji Kuratani, Haruo Kanasaki, Helmut Luchtenberg, Ulrich Tenter, Andreas Ohm
  • Patent number: 5286754
    Abstract: A pharmaceutical formulation comprising by weight 30 to 95% of 1cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-quinoline-3-carb oxylic acid; 4.5 to 25% of a dry binder based on cellulose; 0 to 30% of a disintegration auxiliary based on starch; 0.5 to 10% of a disintegration auxiliary based on a cellulose derivative and/or a cross-linked polyvinyl-pyrrolidone; 0 to 2% of a flow-improving agent, and 0 to 3% of a lubricant. Tablets and capsules made from granules of the formulation, about 0.8 to 2 mm in size, exhibit high bioavailability and excellent storage stability.
    Type: Grant
    Filed: September 19, 1988
    Date of Patent: February 15, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Streuff, Helmut Luchtenberg
  • Patent number: 5266581
    Abstract: A solid, rapidly absorbable composition by weight consisting of 1 part by weight of nimodipine, 0.01 to 1.5 parts of polyvinylpyrrolidone with an average molecular weight of 15,000 to 50,000 and 1 to 12 parts by weight of crosslinked insoluble polyvinylpyrrolidone.
    Type: Grant
    Filed: February 1, 1993
    Date of Patent: November 30, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Schmidt, Helmut Luchtenberg, Eduard Porges
  • Patent number: 4966772
    Abstract: A solid medicament preparation having long-lasting action containing a sparingly soluble dihydropyridine active compound of the Formula (I) ##STR1## the preparation having a core-coating construction, the core containing at least one of the above mentioned dihydropyridines in slow-release form, the inner-most coating situated around the core contains no active compound and only dissolves slowly and adjacent to the inner-most coating a rapid release initial dose of the active compound mixed with a polymer.
    Type: Grant
    Filed: April 12, 1989
    Date of Patent: October 30, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Ohm, Helmut Luchtenberg, Manfred Bucheler, Roland Rupp, Heinrich Feltkamp
  • Patent number: 4933186
    Abstract: A pharmaceutical formulation tablet with a long-lasting action for 1 to 2 daily doses having a diameter between about 0.5 and 15 mm and comprising(a) a rapid-release core of a dihydropyridine,(b) a coat containing no active compound and formed of a free-flowing powder mixture or of granules, and(c) optionally, a further coating of a rapid-release dihydropyridine formulation.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: June 12, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Ohm, Helmut Luchtenberg, Manfred Bucheler, Josef Schmoll, Roland Rupp, Eduard Porges, Takaaki Nishioka
  • Patent number: 4892741
    Abstract: The invention relates to solid pharmaceutical preparations which have a long-lasting action and are for dihydropyridines in the form of a press coated tablet, and a process for their preparation.
    Type: Grant
    Filed: June 8, 1988
    Date of Patent: January 9, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Ohm, Helmut Luchtenberg, Shinji Maegata, Wolfgang Opitz
  • Patent number: 4562069
    Abstract: In the treatment of cardiovascular and coronary disorders by administering to a patent suffering therefrom a solid preparation comprising nifedipine, the improvement which comprises administering such nifedipine in the form of a solid two-phase medicament formulation comprising a nifedipine coprecipitate, in which the nifedipine is present in a non-crystalline form, and crystalline nifedipine, whereby the nifedipine rapidly enters the blood stream in a relatively high concentration which is maintained for a relatively long time.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: December 31, 1985
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ahmed Hegasy, Roland Rupp, Klaus-Dieter Ramsch, Helmut Luchtenberg