Patents by Inventor Anders Lindh

Anders Lindh 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).

  • Patent number: 7892366
    Abstract: The present invention relates to a stainless steel alloy, more specifically a duplex stainless steel alloy with a ferritic-austenitic matrix and high corrosion resistance in combination with good structure stability, specifically a duplex stainless steel with a ferrite content of 40-65% and a well balanced analysis and with a combination of high corrosion resistance and good mechanical properties, such as high ultimate strength and good ductility which is especially suitable for use in applications in oil and gas explorations such as wire, especially as reinforced wire in wireline applications. These purposes are achieved according to the invention by a duplex stainless steel alloy that contains (in wt %): C 0-0.03%; Si up to max 0.5%; Mn 0-3.0%; Cr 24.0-30.0%; Ni 4.9-10.0%; Mo 3.0-5.0%; N 0.28-0.5%; S up to max. 0.010%; Co 0-3.5%; W 0-3.0%; Cu 0-2%; Ru 0-0.3%; Al 0-0.03; Ca 0-0.010%; the balance being Fe and unavoidable impurities.
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: February 22, 2011
    Assignee: Sandvik Intellectual Property AB
    Inventor: Anders Lindh
  • Publication number: 20060196582
    Abstract: The present invention relates to a stainless steel alloy, more specifically a duplex stainless steel alloy with a ferritic-austenitic matrix and high corrosion resistance in combination with good structure stability, specifically a duplex stainless steel with a ferrite content of 40-65% and a well balance analysis and with a combination of high corrosion resistance and good mechanical properties, such as high ultimate strength and good ductility which is especially suitable for use in applications in oil and gas explorations such as wire, especially as reinforced wire in wireline applications. These purposes are achieved according to the invention by a duplex stainless steel alloy that contains (in wt %): C 0-0,03% Si up to max 0.5% Mn 0-3,0% Cr 24.0-30.0% Ni 4.9-10.0% Mo 3.0-5.0% N 0.28-0.5% S up to max, 0.010% Co 0-3.5% W 0-3.0% Cu 0-2.0% Ru 0-0.3% Al 0-0.03% Ca 0-0.010% the balance being Fe and unavoidable impurities.
    Type: Application
    Filed: February 19, 2004
    Publication date: September 7, 2006
    Inventor: Anders Lindh