Patents by Inventor Leonid Kulak

Leonid Kulak 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: 10487385
    Abstract: A titanium based, ceramic reinforced body formed from an alloy having from about 3 wt. % to about 10 wt. % of zirconium, about 10 wt. % to about 25 wt. % of niobium, from about 0.5 wt. % to about 2 wt. % of silicon, and from about 63 wt. % to about 86.5 wt. % of titanium. The alloy has a hexagonal crystal lattice ? phase of from about 20 vol % to about 70 vol %, and a cubic body centered ? crystal lattice phase of from about 30 vol. % to about 80 vol. %. The body has an ultimate tensile strength of about 950 MPa or more, and a Young's modulus of about 150 GPa or less. A molten substantially uniform admixture of a zirconium, niobium, silicon, and titanium alloy is formed, cast into a shape, and cooled into body. The body may then be formed into a desired shape, for example, a medical implant and optionally annealed.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: November 26, 2019
    Assignee: Pulse IP, LLC
    Inventors: Andrew E. Fisk, Anatolii Demchyshyn, Leonid Kulak, Mykola Kuzmenko
  • Publication number: 20180016669
    Abstract: A titanium based, ceramic reinforced body formed from an alloy having from about 3 wt. % to about 10 wt. % of zirconium, about 10 wt. % to about 25 wt. % of niobium, from about 0.5 wt. % to about 2 wt. % of silicon, and from about 63 wt. % to about 86.5 wt. % of titanium. The alloy has a hexagonal crystal lattice a phase of from about 20 vol % to about 70 vol %, and a cubic body centered ? crystal lattice phase of from about 30 vol. % to about 80 vol. %. The body has an ultimate tensile strength of about 950 MPa or more, and a Young's modulus of about 150 GPa or less. A molten substantially uniform admixture of a zirconium, niobium, silicon, and titanium alloy is formed, cast into a shape, and cooled into body. The body may then be formed into a desired shape, for example, a medical implant and optionally annealed.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 18, 2018
    Inventors: Andrew E. Fisk, Anatolii Demchyshyn, Leonid Kulak, Mykola Kuzmenko
  • Patent number: 9039963
    Abstract: A titanium based, ceramic reinforced alloy ingot for use in producing medical implants. An ingot is formed from an alloy having comprising from about 5 to about 35 wt. % niobium, from about 0.5 to about 3.5 wt. % silicon, and from about 61.5 to about 94.5 wt. % of titanium. The alloy has a hexagonal crystal lattice ? phase of from about 20 vol % to about 70 vol %, and a cubic body centered ? crystal lattice phase of from about 30 vol. % to about 80 vol. %. The ingot has an ultimate tensile strength of about 940 MPa or more, and a Young's modulus of about 150 GPa or less. A molten substantially uniform admixture of a niobium, silicon, and titanium alloy is formed, cast into a shape, and cooled into an ingot. The ingot may then be formed into a medical implant and optionally annealed.
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: May 26, 2015
    Assignee: Pulse Technologies, Inc.
    Inventors: Andrew E. Fisk, Anatolii Demchyshyn, Mykola Kuzmenko, Sergei Firstov, Leonid Kulak
  • Publication number: 20140105781
    Abstract: A titanium based, ceramic reinforced alloy ingot for use in producing medical implants. An ingot is formed from an alloy having comprising from about 5 to about 35 wt. % niobium, from about 0.5 to about 3.5 wt. % A silicon, and from about 61.5 to about 94.5 wt. % of titanium. The alloy has a hexagonal crystal lattice a phase of from about 20 vol % to about 70 vol %, and a cubic body centered 13 crystal lattice phase of from about 30 vol. % to about 80 vol. %. The ingot has an ultimate tensile strength of about 940 MPa or more, and a Young's modulus of about 150 GPa or less. A molten substantially uniform admixture of a niobium, silicon, and titanium alloy is formed, cast into a shape, and cooled into an ingot. The ingot may then be formed into a medical implant and optionally annealed.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Applicant: Pulse Technologies, Inc.
    Inventors: ANDREW E. FISK, Anatolii Demchyshyn, Mykola Kuzmenko, Sergei Firstov, Leonid Kulak
  • Publication number: 20090285714
    Abstract: Implantable medical devices made from a single beta phase Tantalum alloy utilizing Titanium as an alloying agent that are biocompatible, radiopaque and visible under x-ray and fluoroscopy, the alloy having mechanical properties that allow it to be machined by conventional, machining methods for forming the devices, and a method for making the alloy. The alloy is between approximately 10 percent and 25 percent Ti by weight and preferably has a density of 12 g/cm3 or greater.
    Type: Application
    Filed: January 7, 2009
    Publication date: November 19, 2009
    Applicant: Pulse Technologies, Inc.
    Inventors: Andrew Fisk, Robert S. Walsh, SR., Francis E. Hanofer, JR., Joseph C. Rosato, JR., Anatolii Demchyshyn, Leonid Kulak, Sergei Firstov, Mykola Kumenko