Patents by Inventor John H. Stevens

John H. Stevens 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: 9206651
    Abstract: Coupling members for coupling an earth-boring drill tool to a drill string, drilling tools including a coupling member attached to a body of an earth-boring drill tool, methods for forming drilling tools including a coupling member, and methods for forming coupling members are disclosed. A coupling member may include a distal region comprising a first material composition and a proximal region comprising a second, different material composition. A drilling tool may include a body that is attached to a coupling member with a varied material composition for coupling the body to a drill string.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: December 8, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: John H. Stevens, Jimmy W. Eason, Ian D. Harris
  • Patent number: 9168012
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: October 27, 2015
    Assignee: HeartFlow, Inc.
    Inventors: Gregory R. Hart, John H. Stevens
  • Publication number: 20150183085
    Abstract: Methods of forming at least a portion of an earth-boring tool include providing particulate matter including a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and providing an inoculant within the mold cavity. Methods of forming a roller cone of an earth-boring rotary drill bit include forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and controlling grain growth using an inoculant as the molten composition solidifies. Articles including components of earth-boring tools are fabricated using such methods.
    Type: Application
    Filed: March 10, 2015
    Publication date: July 2, 2015
    Inventor: John H. Stevens
  • Publication number: 20150173700
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Application
    Filed: February 4, 2015
    Publication date: June 25, 2015
    Inventors: Gregory R. HART, John H. STEVENS
  • Patent number: 9063635
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: June 23, 2015
    Assignee: HeartFlow, Inc.
    Inventors: Gregory R. Hart, John H. Stevens
  • Patent number: 9063634
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: June 23, 2015
    Assignee: HeartFlow, Inc.
    Inventors: Gregory R. Hart, John H. Stevens
  • Patent number: 9002690
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: April 7, 2015
    Assignee: HeartFlow, Inc.
    Inventors: Gregory R. Hart, John H. Stevens
  • Publication number: 20150075876
    Abstract: Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase, a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition.
    Type: Application
    Filed: November 24, 2014
    Publication date: March 19, 2015
    Inventors: John H. Stevens, Jimmy W. Eason
  • Patent number: 8978734
    Abstract: Methods of forming at least a portion of an earth-boring tool include providing particulate matter including a hard material in a mold cavity, melting a metal and the hard material to form a molten composition comprising a eutectic or near-eutectic composition of the metal and the hard material, casting the molten composition to form the at least a portion of an earth-boring tool within the mold cavity, and providing an inoculant within the mold cavity. Methods of forming a roller cone of an earth-boring rotary drill bit include forming a molten composition, casting the molten composition within a mold cavity, solidifying the molten composition to form the roller cone, and controlling grain growth using an inoculant as the molten composition solidifies. Articles including components of earth-boring tools are fabricated using such methods.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: March 17, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: John H. Stevens
  • Publication number: 20150073766
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 12, 2015
    Inventors: Gregory R. HART, John H. STEVENS
  • Publication number: 20150073767
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 12, 2015
    Inventors: Gregory R. HART, John H. STEVENS
  • Publication number: 20150074610
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 12, 2015
    Inventors: Gregory R. HART, John H. STEVENS
  • Publication number: 20150073761
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 12, 2015
    Inventors: Gregory R. HART, John H. STEVENS
  • Publication number: 20150060051
    Abstract: A method of forming a downhole tool comprises contacting at least one downhole structure comprising at least one metal material with a molten electrolyte comprising anhydrous sodium tetraborate. Electrical current is applied to at least a portion of the at least one downhole structure to form at least one borided downhole structure comprising at least one metal boride material. Other methods of forming a downhole tool, and a downhole tool are also described.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Inventors: Vivekanand Sista, James L. Overstreet, John H. Stevens
  • Publication number: 20150060288
    Abstract: A method of forming a down-hole tool comprises contacting at least a portion of at least one down-hole structure comprising at least one ceramic-metal composite material with a molten electrolyte comprising sodium tetraborate. Electrical current is applied to at least a portion of the at least one down-hole structure to form at least one borided down-hole structure comprising at least one metal boride material. Other methods of forming a down-hole tool, and a down-hole tool are also described.
    Type: Application
    Filed: September 5, 2013
    Publication date: March 5, 2015
    Inventors: Vivekanand Sista, John H. Stevens, James L. Overstreet
  • Patent number: 8915959
    Abstract: The subject invention relates to a valve replacement system together with methods of preparation and use, are provided for endovascular replacement of a heart valve in a host. The valve replacement system includes up to five components: a prosthetic valve device, a valve introducer device, an intraluminal procedure device, a procedure device capsule, and a tissue cutter. The system provides for endovascular removal of a malfunctioning valve and subsequent replacement with a permanent prosthetic heart valve.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: December 23, 2014
    Assignee: Heartport, Inc.
    Inventor: John H. Stevens
  • Patent number: 8914264
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: December 16, 2014
    Assignee: HeartFlow, Inc.
    Inventors: Gregory R. Hart, John H. Stevens
  • Patent number: 8905117
    Abstract: Methods of forming at least a portion of an earth-boring tool include providing at least one insert in a mold cavity, providing particulate matter in the mold cavity, melting a metal and a hard material to form a molten composition, and casting the molten composition. Other methods include coating at least one surface of a mold cavity with a coating material having a composition differing from a composition of the mold, melting a metal and a hard material to form a molten composition, and casting the molten composition. Articles comprising at least a portion of an earth-boring tool include at least one insert and a solidified eutectic or near-eutectic composition including a metal phase and a hard material phase. Other articles include a solidified eutectic or near-eutectic composition including a metal phase, a hard material phase and a coating material in contact with the solidified eutectic or near-eutectic composition.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: December 9, 2014
    Assignee: Baker Hughes Incoporated
    Inventors: John H. Stevens, Jimmy W. Eason
  • Publication number: 20140350908
    Abstract: Embodiments include a system for providing blood flow information for a patient. The system may include at least one computer system including a touchscreen. The at least one computer system may be configured to display, on the touchscreen, a three-dimensional model representing at least a portion of an anatomical structure of the patient based on patient-specific data. The at least one computer system may also be configured to receive a first input relating to a first location on the touchscreen indicated by at least one pointing object controlled by a user, and the first location on the touchscreen may indicate a first location on the displayed three-dimensional model. The at least one computer system may be further configured to display first information on the touchscreen, and the first information may indicate a blood flow characteristic at the first location.
    Type: Application
    Filed: August 1, 2014
    Publication date: November 27, 2014
    Inventors: Gregory R. HART, John H. STEVENS
  • Patent number: 8869920
    Abstract: Methods, systems, and compositions for manufacturing downhole tools and downhole tool parts for drilling subterranean material are disclosed. A model having an external peripheral shape of a downhole tool or tool part is fabricated. Mold material is applied to the external periphery of the model. The mold material is permitted to harden to form a mold about the model. The model is eliminated and a composite matrix material is cast within the mold to form a finished downhole tool or tool part.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: October 28, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: John H. Stevens, Jimmy W. Eason