Patents by Inventor Dietmar Wachtler

Dietmar Wachtler 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).

  • Method and computer system for establishing a relationship between a stress and a strain
    Patent number: 6687624
    Abstract: The relationship between the stress &sgr; and the strain &egr; is firstly established in step 100 with short-term tests as a function of the temperature T. In steps 101 to 104, a Findley model is extended in such a way as to obtain a relationship between the strain &egr; and the stress &sgr; as a function of the time t and the temperature T. The two models are combined in steps 105 and 106, so as to obtain overall a relationship between the stress &sgr; and the strain &egr; as a function of the time t and the temperature T.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: February 3, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bahman Sarabi, Martin Wanders, Dietmar Wächtler, Andreas Wende
  • Method and computer system for establishing a relationship between a stress and a strain
    Publication number: 20020178832
    Abstract: The relationship between the stress &sgr; and the strain &egr; is firstly established in step 100 with short-term tests as a function of the temperature T. In steps 101 to 104, a Findley model is extended in such a way as to obtain a relationship between the strain &egr; and the stress &sgr; as a function of the time t and the temperature T. The two models are combined in steps 105 and 106, so as to obtain overall a relationship between the stress &sgr; and the strain &egr; as a function of the time t and the temperature T.
    Type: Application
    Filed: March 27, 2002
    Publication date: December 5, 2002
    Inventors: Bahman Sarabi, Martin Wanders, Dietmar Wachtler, Andreas Wende