Patents by Inventor Oliver Warkentin

Oliver Warkentin 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: 8613788
    Abstract: The addition of 0.5 to 30 ppm boron and 0.5 to 20 ppm calcium to iridium and the Zr- and Hf-free alloys thereof and rhodium and the Zr- and Hf-free alloys thereof surprisingly increases the creep rupture strength at high temperatures, in particular around 1,800° C.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: December 24, 2013
    Assignee: Heraeus Materials Technology GmbH & Co. KG
    Inventors: Uwe Hortig, Verena Baier, Harald Manhardt, Oliver Warkentin, David Francis Lupton
  • Publication number: 20100329922
    Abstract: The addition of 0.5 to 30 ppm boron and 0.5 to 20 ppm calcium to iridium and the Zr- and Hf-free alloys thereof and rhodium and the Zr- and Hf-free alloys thereof surprisingly increases the creep rupture strength at high temperatures, in particular around 1,800° C.
    Type: Application
    Filed: June 28, 2010
    Publication date: December 30, 2010
    Applicant: W.C. HERAEUS GMBH
    Inventors: Uwe Hortig, Verena Baier, Harald Manhardt, Oliver Warkentin, David Francis Lupton
  • Publication number: 20070062810
    Abstract: An alloy based on silver is provided, which can be used for reflective layers with a reflection factor of >90% in the visible spectral range of daylight and which exhibits a high resistance to corrosion in sulfur-containing atmospheres. The alloy contains about 0.01 to 5 wt % indium and/or tin and/or antimony and/or bismuth and the remainder silver.
    Type: Application
    Filed: November 7, 2006
    Publication date: March 22, 2007
    Applicant: W.C. HERAEUS GMBH & CO., KG
    Inventors: Bernd Gehlert, Heiko Specht, Oliver Warkentin
  • Publication number: 20040253137
    Abstract: An alloy based on silver is provided, which can be used for reflective layers with a reflection factor of >90% in the visible spectral range of daylight and which exhibits a high resistance to corrosion in sulfur-containing atmospheres. The alloy contains about 0.01 to 5 wt % indium and/or tin and/or antimony and/or bismuth and the remainder silver.
    Type: Application
    Filed: June 14, 2004
    Publication date: December 16, 2004
    Applicant: W.C. Heraeus GmbH & Co., KG
    Inventors: Bernd Gehlert, Heiko Specht, Oliver Warkentin
  • Publication number: 20040161630
    Abstract: Alloys and reflector layers are provided which are based on silver and which contain at least three different chemical elements. The alloys and reflector layers are used for reflective layers with a reflection factor of over 90% in the visible spectral range of daylight and exhibit a high resistance to atmospheric corrosion relative to chlorine and sulfur.
    Type: Application
    Filed: February 11, 2004
    Publication date: August 19, 2004
    Applicant: W.C. Heraeus GmbH & Co.KG
    Inventors: Heiko Specht, Oliver Warkentin, Torsten Halden
  • Patent number: 6756081
    Abstract: A hollow cylindrical target for a cathode sputtering unit with a hollow cylindrical sputtering material and a target holder is disclosed. The sputtering material has an annular cross section and concentrically surrounds a longitudinal segment of the target holder. The target holder extends out of the sputtering material at least at one end of the target to allow connection to the cathode sputtering unit. The at least one part of the target holder that extends from the sputtering material is a single part that can be detached from the target by at least one screw fitting.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: June 29, 2004
    Assignee: W. C. Heraeus GmbH & Co. KG
    Inventors: David Lupton, Ralf Heck, Bernd Stenger, Oliver Warkentin
  • Patent number: 6645358
    Abstract: A hollow cylindrical target for a cathode sputtering unit with a hollow cylindrical sputtering material and a target holder is disclosed. The sputtering material has an annular cross section and concentrically surrounds a longitudinal segment of the target holder. The target holder extends out of the sputtering material at least at one end of the target to allow connection to the cathode sputtering unit. The at least one part of the target holder that extends from the sputtering material is a single part that can be detached from the target by at least one screw fitting.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: November 11, 2003
    Assignee: W.C. Heraeus GmbH & Co. KG
    Inventors: David Lupton, Ralf Heck, Bernd Stenger, Oliver Warkentin
  • Publication number: 20030177793
    Abstract: A bushing for drawing glass fibers and its use.
    Type: Application
    Filed: January 24, 2003
    Publication date: September 25, 2003
    Applicant: W. C. HERAEUS & CO. KG
    Inventors: Wulf Kock, David Lupton, Oliver Warkentin
  • Publication number: 20030141183
    Abstract: A hollow cylindrical target for a cathode sputtering unit with a hollow cylindrical sputtering material and a target holder. The sputtering material has an annular cross section and concentrically surrounds a longitudinal segment of the target holder. The target holder extends out of the sputtering material at least at one end of the target to allow connection to the cathode sputtering unit. The at least one part of the target holder that extends from the sputtering material is a single part that can be detached from the target by at least one screw fitting.
    Type: Application
    Filed: March 11, 2003
    Publication date: July 31, 2003
    Applicant: W. C. Heraeus GmbH & Co. KG
    Inventors: David Lupton, Ralf Heck, Bernd Stenger, Oliver Warkentin
  • Publication number: 20020096430
    Abstract: A hollow cylindrical target for a cathode sputtering unit with a hollow cylindrical sputtering material and a target holder. The sputtering material has an annular cross section and concentrically surrounds a longitudinal segment of the target holder. The target holder extends out of the sputtering material at least at one end of the target to allow connection to the cathode sputtering unit. The at least one part of the target holder that extends from the sputtering material is a single part that can be detached from the target by at least one screw fitting.
    Type: Application
    Filed: January 15, 2002
    Publication date: July 25, 2002
    Applicant: W. C. Heraeus GmbH & Co. KG.
    Inventors: David Lupton, Ralf Heck, Bernd Stenger, Oliver Warkentin