Patents by Inventor Jean-Luc Hoffman

Jean-Luc Hoffman 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).

  • AlMg alloy for welded constructions having improved mechanical characteristics
    Patent number: 6056836
    Abstract: Sheet for welded constructions having an ultimate tensile strength R.sub.m >275 MPa, elongation A>22% and a product A.times.R.sub.m >7000, having the composition, in % by weight:______________________________________ Mg: 4.2-4.7; Mn: 0.20-0.40; Zn: <0.20; Fe: 0.20-0.45; Si <0.25; Cr <0.15; Cu <0.25; Ti <0.10; Zr <0.10; ______________________________________other elements <0.05 each and <0.20 in total,balance Al.
    Type: Grant
    Filed: February 23, 1998
    Date of Patent: May 2, 2000
    Assignee: Pechiney Rhenalu
    Inventors: Jean-Luc Hoffman, Guy-Michel Raynaud, Martin-Peter Schmidt, Herve Ribes