Patents by Inventor Helmut Hannemann

Helmut Hannemann 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).

  • Patent number: 4011760
    Abstract: A measuring probe for a gas measuring apparatus comprises a probe head which is made of a floatable material and which is connected to a probe line for conveying the measured gas and which is provided with one or more intake openings for the gas and a connecting conduit for connecting the openings to the probe line.
    Type: Grant
    Filed: December 5, 1975
    Date of Patent: March 15, 1977
    Assignee: Dragerwerk Aktiengesellschaft
    Inventors: Dieter Heller, Helmut Hannemann