Patents by Inventor Siegfried RIESS

Siegfried RIESS 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).

  • Method for producing polycrystalline silicon
    Patent number: 10077192
    Abstract: Production of highly pure comminuted polycrystalline silicon from polycrystalline silicon rods produced by the Siemens process is facilitated by removal of graphite residues from the electrode ends of the rods by removing the contaminated end portions by means of mechanical impulses.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: September 18, 2018
    Assignee: WACKER CHEMIE AG
    Inventors: Stefan Faerber, Andreas Bergmann, Reiner Pech, Siegfried Riess
  • Apparatus and method for comminuting a polycrystalline silicon rod
    Patent number: 9586210
    Abstract: An apparatus is disclosed for comminuting a polycrystalline silicon rod, which apparatus includes a base, at least one movable comminuting tool and optionally at least one immovable anvil. A silicon rod to be comminuted lies on a longitudinal axis oriented parallel or virtually parallel to the surface of the base and can be adjusted between the comminuting tool and anvil. Also disclosed is a method for comminuting a polycrystalline silicon rod.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: March 7, 2017
    Assignee: Wacker Chemie AG
    Inventors: Joachim Mattes, Peter Gruebl, Siegfried Riess
  • METHOD FOR PRODUCING POLYCRYSTALLINE SILICON
    Publication number: 20170001868
    Abstract: Production of highly pure comminuted polycrystalline silicon from polycrystalline silicon rods produced by the Siemens process is facilitated by removal of graphite residues from the electrode ends of the rods by removing the contaminated end portions by means of mechanical impulses.
    Type: Application
    Filed: January 16, 2015
    Publication date: January 5, 2017
    Inventors: Stefan FAERBER, Andreas BERGMANN, Reiner PECH, Siegfried RIESS
  • DEVICE FOR RECEIVING AND TRANSPORTING A SILICON ROD, AND METHOD FOR PRODUCING POLYCRYSTALLINE SILICON
    Publication number: 20160325945
    Abstract: A gripping device for the capturing, transporting, and placing of polysilicon rods has an electrically operated rod gripping mechanism actuated by a frame with a parallelogram structure, and two gripping segments engageable with a vertical latch element which engages upon closure and automatically unlatches in an open position. The gripping device reliably extracts and transports polysilicon rods of diverse cross-sections with minimal contamination.
    Type: Application
    Filed: December 11, 2014
    Publication date: November 10, 2016
    Inventors: Guenter BERGER, Siegfried RIESS
  • APPARATUS AND METHOD FOR COMMINUTING A POLYCRYSTALLINE SILICON ROD
    Publication number: 20140034763
    Abstract: An apparatus is disclosed for comminuting a polycrystalline silicon rod, which apparatus includes a base, at least one movable comminuting tool and optionally at least one immovable anvil. A silicon rod to be comminuted lies on a longitudinal axis oriented parallel or virtually parallel to the surface of the base and can be adjusted between the comminuting tool and anvil. Also disclosed is a method for comminuting a polycrystalline silicon rod.
    Type: Application
    Filed: July 8, 2013
    Publication date: February 6, 2014
    Inventors: Joachim MATTES, Peter GRUEBL, Siegfried RIESS