Patents by Inventor Val Lieberman

Val Lieberman 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).

  • Coated extrusion tool
    Patent number: 10675665
    Abstract: Provided are extrusion tools such as extrusion dies or portions thereof having a surface with at least one coating thereon, and methods of forming the same are disclosed. The at least one coating is formed from a composition that is a metal aluminum nitride or carbonitride with particular characteristics such that the amount of aluminum varies within the coating between a coating outer surface and an intermediate thickness within the coating. The resulting coatings have tailored physical and performance characteristics that result in improved wear and extrusion performance.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: June 9, 2020
    Assignee: IHI Ionbond AG.
    Inventors: Michael Auger, Hristo Strakov, Vasileios Papageorgiou, Stylianos Vogiatzis, Val Lieberman
  • COATED EXTRUSION TOOL
    Publication number: 20180361447
    Abstract: Provided are extrusion tools such as extrusion dies or portions thereof having a surface with at least one coating thereon, and methods of forming the same are disclosed. The at least one coating is formed from a composition that is a metal aluminum nitride or carbonitride with particular characteristics such that the amount of aluminum varies within the coating between a coating outer surface and an intermediate thickness within the coating. The resulting coatings have tailored physical and performance characteristics that result in improved wear and extrusion performance.
    Type: Application
    Filed: December 7, 2016
    Publication date: December 20, 2018
    Inventors: Michael Auger, Hristo Strakov, Vasileios Papageorgiou, Stylianos Vogiatzis, Val Lieberman
  • COATED EXTRUSION TOOL
    Publication number: 20170157829
    Abstract: Provided are extrusion tools such as extrusion dies or portions thereof having a surface with at least one coating thereon, and methods of forming the same are disclosed. The at least one coating is formed from a composition that is a metal aluminum nitride or carbonitride with particular characteristics such that the amount of aluminum varies within the coating between a coating outer surface and an intermediate thickness within the coating. The resulting coatings have tailored physical and performance characteristics that result in improved wear and extrusion performance.
    Type: Application
    Filed: December 7, 2016
    Publication date: June 8, 2017
    Inventors: Michael Auger, Hristo Strakov, Vasileios Papageorgiou, Stylianos Vogiatzis, Val Lieberman
  • SUBSTRATE COATED WITH AMORPHOUS HYDROGENATED CARBON
    Publication number: 20100260994
    Abstract: The invention relates to a substrate being at least partially coated with a coating comprising at least a first layer and a second layer. The first layer and the second layer comprise amorphous hydrogenated carbon. The first layer has a first Eo4 optical band gap and the second layer has a second Eo4 optical band gap. The said second Eo4 optical band gap is smaller than said first Eo4 optical band gap. The invention further relates to a method to deposit such a coating on a substrate.
    Type: Application
    Filed: December 16, 2008
    Publication date: October 14, 2010
    Inventors: Roland Groenen, Val Lieberman, Kris Van Hege