Patents by Inventor Christian Gerk

Christian Gerk 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).

  • Component comprising hard metal composition including fused tungsten carbide
    Patent number: 11525173
    Abstract: A component obtainable by a process which includes providing a composition and sintering the composition at a sintering temperature of from 1250° C. to 1400° C. for a period of from 3 to 15 minutes. The composition includes hard material particles with an inner core of fused tungsten carbide and an outer shell of tungsten carbide, and a binder metal selected from Co, Ni, Fe and alloys with at least one metal selected from Co, Ni and Fe.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: December 13, 2022
    Assignee: H.C STARCK TUNGSTEN GMBH
    Inventors: Christian Gerk, Markus Zumdick
  • HARD METAL COMPOSITION
    Publication number: 20180094343
    Abstract: A component obtainable by a process which includes providing a composition and sintering the composition at a sintering temperature of from 1250° C. to 1400° C. for a period of from 3 to 15 minutes. The composition includes hard material particles with an inner core of fused tungsten carbide and an outer shell of tungsten carbide, and a binder metal selected from Co, Ni, Fe and alloys with at least one metal selected from Co, Ni and Fe.
    Type: Application
    Filed: December 8, 2017
    Publication date: April 5, 2018
    Inventors: Christian Gerk, Markus Zumdick
  • Hard metal composition
    Patent number: 9879333
    Abstract: A process for producing a component includes providing a composition comprising hard material particles and a binder metal, and sintering the composition at a sintering temperature of from 1250° C. to 1400° C. for a period of from 3 to 15 minutes. The hard material particles comprise an inner core comprising fused tungsten carbide and an outer shell comprising tungsten carbide. The binder metal is selected from the group consisting of Co, Ni, Fe and alloys comprising at least one metal selected from Co, Ni and Fe.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: January 30, 2018
    Assignee: H. C. STARCK GMBH
    Inventors: Christian Gerk, Markus Zumdick
  • HARD METAL COMPOSITION
    Publication number: 20140322064
    Abstract: A process for producing a component includes providing a composition comprising hard material particles and a binder metal, and sintering the composition at a sintering temperature of from 1250° C. to 1400° C. for a period of from 3 to 15 minutes. The hard material particles comprise an inner core comprising fused tungsten carbide and an outer shell comprising tungsten carbide. The binder metal is selected from the group consisting of Co, Ni, Fe and alloys comprising at least one metal selected from Co, Ni and Fe.
    Type: Application
    Filed: October 26, 2012
    Publication date: October 30, 2014
    Applicant: H.C. STARCK GMBH
    Inventors: Christian Gerk, Markus Zumdick
  • Dispersion, method for producing same, and use thereof
    Patent number: 8815983
    Abstract: A dispersion comprising hard material particles and at least one organic binder and/or at least one plasticizer. The hard material particles comprise an inner core comprising a fused tungsten carbide and an outer shell comprising tungsten carbide.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: August 26, 2014
    Assignee: H. C. Starck GmbH
    Inventors: Christian Gerk, Ulf Waag
  • DISPERSION, METHOD FOR PRODUCING SAME, AND USE THEREOF
    Publication number: 20130068365
    Abstract: A dispersion comprising hard material particles and at least one organic binder and/or at least one plasticizer. The hard material particles comprise an inner core comprising a fused tungsten carbide and an outer shell comprising tungsten carbide.
    Type: Application
    Filed: April 4, 2011
    Publication date: March 21, 2013
    Applicant: H.C. STARCK GMBH
    Inventors: Christian Gerk, Ulf Waag
  • Drill bits comprising dual-phase tungsten carbide material
    Patent number: 7810587
    Abstract: The invention relates to a drill bit containing tungsten carbide powder having powder particles which have a core of cast tungsten carbide and a shell of tungsten monocarbide.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: October 12, 2010
    Assignee: H.C. Starck GmbH
    Inventors: Christian Gerk, Klause-Dieter Wernicke
  • DUAL-PHASE HARD MATERIAL, METHOD FOR THE PRODUCTION THEREOF AND ITS USE
    Publication number: 20090263646
    Abstract: The invention relates to a drill bit containing tungsten carbide powder having powder particles which have a core of cast tungsten carbide and a shell of tungsten monocarbide.
    Type: Application
    Filed: April 9, 2009
    Publication date: October 22, 2009
    Applicant: H. C. Starck GmbH
    Inventors: Christian Gerk, Klause-Dieter Wernicke
  • Dual-phase hard material comprising tungsten carbide, process for the production thereof and its use
    Patent number: 7541090
    Abstract: The invention relates to tungsten carbide powder consisting of powder particles, which have a core comprised of tungsten cast carbide and a covering comprised of tungsten monocarbide, to the production thereof by heating a tungsten cast carbide powder in the presence of a carbon source to a temperature ranging from 1300 to 2000° C., and to the use thereof for coating surfaces of parts subjected to wear and for producing drill bits.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: June 2, 2009
    Assignee: H.C. Starck GmbH
    Inventors: Christian Gerk, Klaus-Dieter Wernicke
  • Dual-phase hard material, process for the production thereof and its use
    Publication number: 20070079905
    Abstract: The invention relates to tungsten carbide powder consisting of powder particles, which have a core comprised of tungsten cast carbide and a covering comprised of tungsten monocarbide, to the production thereof by heating a tungsten cast carbide powder in the presence of a carbon source to a temperature ranging from 1300 to 2000° C., and to the use thereof for coating surfaces of parts subjected to wear and for producing drill bits.
    Type: Application
    Filed: November 16, 2004
    Publication date: April 12, 2007
    Inventor: Christian Gerk