Patents by Inventor Marco Tivelli

Marco Tivelli 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).

  • Seamless steel tube which is intended to be used as a guide pipe and production method thereof
    Publication number: 20070089813
    Abstract: The present invention pertains to steel with high mechanical resistance at room temperature and up to 130° C., good toughness and good corrosion resistance in the metal base as well as good resistance to cracking in the heat affected zones (HAZ) once the tubing is welded together, and more specifically to heavy gauge seamless steel tubing with high mechanical resistance, good toughness and good corrosion resistance called catenary conduit. The advantages of the present invention with respect to those of an the state of technology reside in providing a chemical composition for steel used to manufacture heavy gauge seamless steel tubing with high mechanical resistance, good toughness, good fissure resistance in the HAZ and good corrosion resistance and a process for manufacturing this product. These advantages are obtained by using a composition made up basically of Fe and a specific chemical composition.
    Type: Application
    Filed: April 25, 2003
    Publication date: April 26, 2007
    Applicants: Tubos De Acero Mexico S.A., Dalmine S.P.A.
    Inventors: Marco Tivelli, Alfonso Izquierdo Garcia, Dionino Colleluori, Guiseppe Cumino