Patents by Inventor Patricia J. Schwartz

Patricia J. Schwartz 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).

  • Publication number: 20140373680
    Abstract: The present disclosure is related to homogeneous alloys comprising titanium and 9% to less than 20% by weight of tungsten, wherein the alloy has a yield strength of at least 120,000 psi and ductility of least 20% elongation; and with further alloying an ultimate tensile strength of at least 200,000 psi and useful ductility of at least 2% elongation; and with the addition of ceramic particulate reinforcements can exhibit an ultimate tensile strength of at least 180,000 psi. Products and metal matrix composites comprising such homogeneous alloys are also disclosed. The metal matrix composites further comprise a discontinuous reinforcement chosen from TiC, TiB2, or TiB, particles or combinations of such particles. Method of making such alloys and composites as well as products made from such alloys and composites are also disclosed.
    Type: Application
    Filed: April 21, 2014
    Publication date: December 25, 2014
    Applicant: Dynamet Technology, Inc.
    Inventors: Stanley Abkowitz, Susan M. Abkowitz, Harvey Fisher, Patricia J. Schwartz
  • Patent number: 8741077
    Abstract: Titanium-tungsten alloys are described comprising tungsten ranging from about 9% to about 20% by weight, and titanium ranging from about 91% to about 80% by weight, exhibiting a yield strength of at least 120,000 psi, and a ductility of at least 20% elongation. Methods of making the alloy, and products made with the alloys are also disclosed herein.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: June 3, 2014
    Assignee: Dynamet Technology, Inc.
    Inventors: Stanley Abkowitz, Susan M. Abkowitz, Harvey Fisher, Patricia J. Schwartz
  • Publication number: 20140079583
    Abstract: Disclosed herein are titanium-tungsten alloys and composites wherein the tungsten comprises 0.5% to 40% by weight of the alloy. Also disclosed is a method of making such alloys and composites using powders of tungsten less then 3 ?m in size, such as 1 ?m or less. Also disclosed is a method of making the titanium alloy by powder metallurgy, and products made from such alloys or billets that may be cast, forged, or extruded. These methods of production can be used to make titanium alloys comprising other slow-diffusing beta stabilizers, such as but not limited to V, Nb, Mo, and Ta.
    Type: Application
    Filed: March 26, 2013
    Publication date: March 20, 2014
    Applicant: Dynamet Technology, Inc.
    Inventors: Stanley Abkowitz, Susan M. Abkowitz, Harvey Fisher, Patricia J. Schwartz
  • Patent number: 8043404
    Abstract: Disclosed herein are extruded titanium metal matrix composites with enhanced ductility. Also disclosed is the extrusion at high extrusion ratio of titanium metal matrix composites produced by powder metal processes. The ductility and machinability of these titanium metal matrix composites extruded at high extrusion ratios combined with their wear resistance and excellent imaging characteristics makes these high extrusion ratio extruded titanium metal matrix composites useful as biological implants, including prosthetic devices. Also disclosed are articles such as orthopedic implants for knee, hip, spine or other biomedical devices, with enhanced properties, made from the disclosed extruded material.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: October 25, 2011
    Assignee: Dynamet Technology, Inc.
    Inventors: Stanley Abkowitz, Susan M. Abkowitz, Harvey Fisher, Patricia J. Schwartz
  • Publication number: 20110233057
    Abstract: The present disclosure is related to homogeneous alloys comprising titanium and 9% to less than 20% by weight of tungsten, wherein the alloy has a yield strength of at least 120,000 psi and ductility of least 20% elongation; and with further alloying an ultimate tensile strength of at least 200,000 psi and useful ductility of at least 2% elongation; and with the addition of ceramic particulate reinforcements can exhibit an ultimate tensile strength of at least 180,000 psi. Products and metal matrix composites comprising such homogeneous alloys are also disclosed. The metal matrix composites further comprise a discontinuous reinforcement chosen from TiC, TiB2, or TiB, particles or combinations of such particles. Method of making such alloys and composites as well as products made from such alloys and composites are also disclosed.
    Type: Application
    Filed: February 22, 2011
    Publication date: September 29, 2011
    Inventors: Stanley Abkowitz, Susan M. Abkowitz, Harvey Fisher, Patricia J. Schwartz