Patents by Inventor Thomas Blümel

Thomas Blümel 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).

  • High mixture-quality bi-modal polyethylene blends
    Patent number: 6545093
    Abstract: Bimodal polyethylene blends are made from a high-molecular-weight ethylene copolymer and a low-molecular-weight ethylene homo- or copolymer and have a melt flow rate MFR 190/21.6 of from 6 to 14 g/10 min, a density of from 0.94 to 0.97 g/cm3, an environmental-stress-cracking resistance ESCR>150 h and a value of less than 3 when the quality of blending in the blend is measured to ISO 13949. A process prepares polyethylene blends of this type by melting and homogenization in a mixing apparatus and discharge via a gear pump. The blends are used to produce moldings, in particular hollow articles and pressure pipes.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: April 8, 2003
    Assignee: Basell Polyolefine GmbH
    Inventors: Paulus de Lange, Andreas Deckers, Thomas Kessler, Wolfgang Rohde, Thomas Blümel, Martin Lux
  • Dental x-ray machine
    Patent number: D502543
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: March 1, 2005
    Assignee: Sirona Dental Systems GmbH
    Inventors: Tilman Phleps, Thomas Blümel, Klaus Stöckl
  • Control panel for dental x-ray machine
    Patent number: D503804
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: April 5, 2005
    Assignee: Sirona Dental Systems GmbH
    Inventors: Tilman Phleps, Thomas Blümel, Klaus Stöckl
  • Handle for dental x-ray machine
    Patent number: D497994
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: November 2, 2004
    Assignee: Sirona Dental Systems GmbH
    Inventors: Tilman Phleps, Thomas Blümel, Klaus Stöckl