Patents by Inventor Thomas Krämer

Thomas Krämer 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).

  • Substituted 2-carba-3,5-dicyano-4-aryl-6-aminopyridines and the use of the same as selective ligands of the adenosine receptor
    Patent number: 7129255
    Abstract: This application relates to compounds of the formula wherein the groups R1–R6 are as defined in the specification and claims, and to a pharmaceutical composition containing the same, and to a method of using the same in treatment of cardiovascular disorders.
    Type: Grant
    Filed: March 25, 2002
    Date of Patent: October 31, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Rosentreter, Thomas Krämer, Andrea Vaupel, Walter Hübsch, Nicole Diedrichs, Thomas Krahn, Klaus Dembowsky, Johannes-Peter Stasch, Mitsuyuki Shimada
  • Substituted 2-thio-3,5-dicyano-4-phenyl-6-aminopyridines and the use of the same
    Patent number: 7109218
    Abstract: Compounds of the formula (I) a process for their preparation and their use as medicaments are described.
    Type: Grant
    Filed: November 28, 2002
    Date of Patent: September 19, 2006
    Assignee: Bayer HealthCare AG
    Inventors: Ulrich Rosentreter, Thomas Krämer, Mitsuyuki Shimada, Walter Hübsch, Nicole Diedrichs, Thomas Krahn, Kerstin Henninger, Johannes-Peter Stasch, Ralf Wischnat
  • Substituted 2-thio-3,5-dicyano-4-phenyl-6-aminopyridines with adenosine receptor-binding activity and their use as cardiovascular preparations
    Patent number: 7078417
    Abstract: This application relates to pyridine derivatives having the general structure in which the several variables are as defined in the specification and claims, and to a process for preparing these compounds, a pharmacutical composition containing such compounds, and a method for using these materials for treatment of stable and unstable angina pectoris and atrial fibrillation.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: July 18, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Rosentreter, Thomas Krämer, Andrea Vaupel, Walter Hübsch, Nicole Diedrichs, Thomas Krahn, Klaus Dembowsky, Johannes-Peter Stasch, Mitsuyuki Shimada
  • Dihydropyrimidines
    Patent number: 6696451
    Abstract: The invention relates to compounds of the general formulae (I) and (Ia) The invention furthermore relates to processes for preparing the compounds of the formulae (I) and (Ia) and to their use as medicaments, in particular for the treatment and prophylaxis of hepatitis B.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: February 24, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jürgen Stoltefuss, Siegfired Goldmann, Thomas Krämer, Karl-Heinz Schlemmer, Ulrich Niewöhner, Arnold Paessens, Erwin Graef, Stefan Lettmann, Karl Deres, Olaf Weber, Jörn Stölting
  • Spin pump having a cooling sleeve surrounding the drive shaft
    Patent number: 6315537
    Abstract: The invention relates to a spin pump for conveying a liquid polymer melt. To drive the conveying means enclosed in the pump housing, a drive shaft is provided, which extends through the pump housing in a bearing bore, and which comprises an external end for connecting to a drive. To seal the outward extending drive shaft, a cooling sleeve is employed which connects in a pressure tight fashion to the pump housing. The cooling sleeve surrounds the drive shaft with a narrow gap therebetween, and the outer surface of the cooling sleeve is cooled by a coolant for increasing the viscosity of the polymer melt which enters the gap between the drive shaft and the cooling sleeve. With an increased viscosity, the melt acts to seal the gap without interfering with the rotation of the drive shaft.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: November 13, 2001
    Assignee: Barmag AG
    Inventors: Ulrich Helbing, Egon Gathmann, Thomas Krämer, Jürgen Hasenburg
  • Heat storage medium
    Patent number: 6227285
    Abstract: A heat storage medium such as paraffin for a latent heat accumulator (cold accumulator), which solidifies while forming crystal structures. In order to achieve improved responsiveness on heat input, the crystal structures are modified by a structure additive preferably in terms of hollow structures, such as e.g. hollow cones.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: May 8, 2001
    Assignee: Schümann Sasol GmbH & Co. KG
    Inventors: Günter Hildebrand, Michael Matthäi, Norbert Matzat, Rolf Laudi, Klaus Fieback, Wolfgang Ahrens, Thomas Krämer