Patents by Inventor Hans Dewald

Hans Dewald 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).

  • Process and apparatus for removing straws from bottles
    Patent number: 4119438
    Abstract: A process and apparatus for removing straws from bottles employing a plurality of resilient blades which are mounted to rotate such that the ends thereof engage the straws within the bottles removing same.
    Type: Grant
    Filed: March 15, 1977
    Date of Patent: October 10, 1978
    Inventor: Hans Dewald