Patents by Inventor Roland Anne

Roland Anne 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).

  • Guidance and protection system for the laying of pipes
    Patent number: 4889450
    Abstract: The invention concerns a system of guidance and protection for the laying of pipes. The system according to the invention includes a sleeve formed by at least two truncated cones, the center of which is traversed by a hole extending essentially axially to said sleeve. The invention applies in particular to inner tubing for pipes.
    Type: Grant
    Filed: October 20, 1987
    Date of Patent: December 26, 1989
    Assignee: Gaz de France
    Inventor: Roland Anne