Patents by Inventor Steven J.A. Treadway

Steven J.A. Treadway 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).

  • Medical instrument with modified memory and flexibility properties and method
    Patent number: 10196713
    Abstract: Medical instruments, particularly, endodontic instruments with unique limited memory characteristics, and methods for making such instruments. One embodiment includes heat treating an endodontic blank prior to forming a working portion of the endodontic instrument.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 5, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Derek E. Heath, Steven J. A. Treadway
  • Method of modifying a physical property of an endodontic instrument
    Patent number: 10182882
    Abstract: Methods for modifying a physical characteristic of finished endodontic instruments made from one or more superelastic alloys is described which include heat treating one or more finished endodontic instruments in a salt bath for a specific time (e.g., from about four hours to about six hours), at a specified temperature (e.g., from about 475° C. to about 550° C.), and preferably at a specified pH range.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: January 22, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Derek E. Heath, Steven J. A. Treadway
  • Medical instrument with modified memory and flexibility properties and method
    Patent number: 9795459
    Abstract: Medical instruments, particularly, endodontic instruments with unique limited memory characteristics, and methods for making such instruments. One embodiment includes heat treating a finished endodontic instrument. A related embodiment includes electropolishing a finished endodontic instrument and then heat treating the endodontic instrument.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: October 24, 2017
    Assignee: D & S Dental, LLC
    Inventors: Derek E. Heath, Steven J. A. Treadway, Bobby J. Bennett
  • Medical Instrument With Modified Memory and Flexibility Properties and Method
    Publication number: 20160008092
    Abstract: Medical instruments, particularly, endodontic instruments with unique limited memory characteristics, and methods for making such instruments. One embodiment includes heat treating an endodontic blank prior to forming a working portion of the endodontic instrument.
    Type: Application
    Filed: September 25, 2015
    Publication date: January 14, 2016
    Inventors: Derek E. Heath, Steven J.A. Treadway
  • MEDICAL INSTRUMENT WITH MODIFIED MEMORY AND FLEXIBILITY PROPERTIES AND METHOD
    Publication number: 20150164616
    Abstract: Medical instruments, particularly, endodontic instruments with unique limited memory characteristics, and methods for making such instruments. One embodiment includes heat treating a finished endodontic instrument. A related embodiment includes electropolishing a finished endodontic instrument and then heat treating the endodontic instrument.
    Type: Application
    Filed: November 11, 2014
    Publication date: June 18, 2015
    Applicant: D & S DENTAL, LLC
    Inventors: Derek E. Heath, Steven J.A. Treadway, Bobby J. Bennett
  • Method of modifying a physical property of an endodontic instrument
    Patent number: 9005377
    Abstract: Methods for modifying a physical characteristic of finished endodontic instruments made from one or more superelastic alloys is described which include heat treating one or more finished endodontic instruments in a salt bath for a specific time (e.g., from about four hours to about six hours), at a specified temperature (e.g., from about 475° C. to about 550° C.), and preferably at a specified pH range.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: April 14, 2015
    Assignee: D & S Dental, LLC
    Inventors: Derek E. Heath, Steven J. A. Treadway
  • Medical instrument with modified memory and flexibility properties and method
    Patent number: 8911573
    Abstract: Medical instruments, particularly, endodontic instruments with unique limited memory characteristics, and methods for making such instruments. One embodiment includes heat treating a finished endodontic instrument. A related embodiment includes electropolishing a finished endodontic instrument and then heat treating the endodontic instrument.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: December 16, 2014
    Assignee: D & S Dental, LLC
    Inventors: Derek E. Heath, Steven J. A. Treadway, Bobby J. Bennett
  • METHOD OF MODIFYING A PHYSICAL PROPERTY OF AN ENDODONTIC INSTRUMENT
    Publication number: 20130269841
    Abstract: Methods for modifying a physical characteristic of finished endodontic instruments made from one or more superelastic alloys is described which include heat treating one or more finished endodontic instruments in a salt bath for a specific time (e.g., from about four hours to about six hours), at a specified temperature (e.g., from about 475° C. to about 550° C.), and preferably at a specified pH range.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 17, 2013
    Inventors: Derek E. Heath, Steven J.A. Treadway
  • MEDICAL INSTRUMENT WITH MODIFIED MEMORY AND FLEXIBILITY PROPERTIES AND METHOD
    Publication number: 20120208145
    Abstract: Medical instruments, particularly, endodontic instruments with unique limited memory characteristics, and methods for making such instruments. One embodiment includes heat treating a finished endodontic instrument. A related embodiment includes electropolishing a finished endodontic instrument and then heat treating the endodontic instrument.
    Type: Application
    Filed: February 14, 2012
    Publication date: August 16, 2012
    Applicant: D & S DENTAL, LLC
    Inventors: Derek E. Heath, Steven J.A. Treadway, Bobby J. Bennett
  • Endodontic Instrument With Modified Memory and Flexibility Properties and Method
    Publication number: 20110159458
    Abstract: Medical instruments, particularly, endodontic instruments with unique limited memory characteristics, and methods for making such instruments. One embodiment includes heat treating a finished endodontic instrument. A related embodiment includes electropolishing a finished endodontic instrument and then heat treating the endodontic instrument.
    Type: Application
    Filed: November 19, 2010
    Publication date: June 30, 2011
    Inventors: Derek E. Heath, Steven J.A. Treadway, Bobby J. Bennett