Patents by Inventor Julia Hufen

Julia Hufen 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).

  • SHAPED HIGH MOLECULAR WEIGHT POLYETHYLENE ARTICLES, THEIR PRODUCTION AND USE
    Publication number: 20130066022
    Abstract: A shaped article, suitable for in a prosthetic device, is formed of polyethylene having a molecular weight of at least 3×105 g/mol as determined by ASTM 4020, and has a yield strength greater than 20 as determined by DIN EN ISO 527. The polyethylene is produced by polymerizing ethylene in the presence of a catalyst composition comprising a Group 4 metal complex of a phenolate ether ligand.
    Type: Application
    Filed: July 6, 2011
    Publication date: March 14, 2013
    Applicant: TICONA GMBH
    Inventors: Dominique Robert, Julia Hufen, Kerstin Lüdtke, Christian Meermann, Jens Ehlers
  • POLYETHYLENE POWDERS AND POROUS ARTICLES PRODUCED THEREFROM
    Publication number: 20130046040
    Abstract: A polyethylene powder has a molecular weight in the range of about 300,000 g/mol to about 2,000,000 g/mol as determined by ASTM-D 4020, an average particle size, D50, between about 300 and about 1500 ?m, and a bulk density between about 0.25 and about 0.5 g/ml. On sintering, the polyethylene powder produces a porous article having a porosity of at least 45% and a pressure drop less than 5 mbar. The porous article is useful in, for example, wastewater aeration and capillary and filtration applications.
    Type: Application
    Filed: May 3, 2011
    Publication date: February 21, 2013
    Applicant: TICONA LLC
    Inventors: Ramesh Srinivasan, Julia Hufen, Bernhard Forschler, Bjorn Rinker, Jens Ehlers, Louie Wang, Rajesh Bhor, Peter Burke, Meinhard Gusik, Yu Shen
  • TOBACCO SMOKE FILTER FOR SMOKING DEVICE WITH POROUS MASS OF ACTIVE PARTICULATE
    Publication number: 20110162667
    Abstract: A tobacco smoking device comprises a porous mass of active particles adapted to enhance a tobacco smoke flowing over said active particles and binder particles. The active particles comprises about 1-99% weight of the porous mass, and the binder particles comprises about 1-99% weight of said porous mass. The active particles and said binder particles are bound together at randomly distributed points throughout the porous mass. The active particles have a greater particle size than the binder particles.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 7, 2011
    Inventors: Peter Burke, Meinhard Gusik, Julia Hufen, Luis Jimenez, Raymond Robertson, Ramesh Srinivasan