Patents by Inventor Elisabeth Ziegler

Elisabeth Ziegler 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).

  • Picornavirus I proteinase and methods of making and using thereof
    Patent number: 6180385
    Abstract: Methods of making and using Picornavirus L proteinase peptides (PLPPs) are provided, including, but not limited to, expression of DNA encoding all or a portion thereof, such as a Picornavirus L proteinase (PLP) and variants thereof, as well as methods for determining active sites and inhibitors of a PLP.
    Type: Grant
    Filed: October 25, 1996
    Date of Patent: January 30, 2001
    Assignee: Boehringer Ingelheim Vetmedica GmbH
    Inventors: Timothy Skern, Regina Kirchweger, Elisabeth Ziegler, Dieter Blaas, Hans-Dieter Liebig, Barry J. Lamphear, Debra Waters, Robert E. Rhoads, Wolfgang Sommergruber, Horst Ahorn
  • Impact modified polyacetal compositions
    Patent number: 5919849
    Abstract: The invention relates to improved polyacetal compositions composed of polyoxymethylene (component A) and a stabilized MBS core shell graft copolymer (component B) formed from a rubber-elastic core based on polybutadiene, and a hard graft shell.The stabilized MBS core shell graft copolymer (component B) contains a special stabilization formulation of at least one hindered phenol, a phosphite, a sulfide, and a pH buffer system.The shaped articles produced from these mixtures are particularly distinguished by an excellent low-temperature impact strength and a good heat aging performance.
    Type: Grant
    Filed: September 9, 1996
    Date of Patent: July 6, 1999
    Assignees: Rohm and Haas Company, Hoechst Aktiengesellschaft
    Inventors: Nazir Ahmed Memon, Richard Henry Weese, Ursula Elisabeth Ziegler