Patents by Inventor Rudolf Ruoff-Schafer

Rudolf Ruoff-Schafer 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).

  • Insulating material for pipes
    Patent number: 4642253
    Abstract: An insulating material for pipes which consists of a layer of insulation and a sleeve that surrounds the pipe with the insulating layer being asymmetrically arranged relative to the pipe which is to be insulated.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: February 10, 1987
    Assignee: Missel GmbH & Co.
    Inventor: Rudolf Ruoff-Schafer