Patents by Inventor Manuel Mendez-Nonell

Manuel Mendez-Nonell 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).

  • Method for bonding a calcium phosphate coating to stainless steels and cobalt base alloys for bioactive fixation of artificial implants
    Patent number: 5482731
    Abstract: This document discloses a method for bonding a calcium phosphate coating to stainless steels or cobalt base alloys for bioactive fixation of artificial implants. The method consists essentially of the following successive steps: applying and thermally diffusing a layer of titanium or its alloys into the stainless steel or cobalt base alloy substrates, applying a calcium phosphate coating and thermally diffusing Ca.sup.2+ and PO.sub.4.sup.-3 ions of the calcium phosphate into the intermediate layer of the titanium or its alloys and finally, the hydrothermal processing of the calcium phosphate coating.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: January 9, 1996
    Assignee: Centro de Investigacion y de Estudios Avanzados Del IPN
    Inventors: Gregorio Vargas-Gutierrez, Manuel Mendez-Nonell, Juan Mendez-Nonell, Armando Salinas-Rodriguez
  • Apparatus to indicate the oxygen content of molten copper using the vibration signal of a graphite rod immersed into the molten metal
    Patent number: 5405121
    Abstract: The purpose of this invention is to present an apparatus consisting of a graphite rod, a vibration signal sensor, a signal processing unit, a data processing unit, and a data display unit to indicate the oxygen content of a copper melt. As such graphite rod is immersed into the molten metal it vibrates and the level of vibration is statistically correlated to the level of dissolved oxygen in the copper melt.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: April 11, 1995
    Assignee: Centro de Investigation y de Estudios Avanzados del IPN
    Inventors: Manuel Mendez-Nonell, Juan Mendez-Nonell, Joel Chaparro-Gonzalez, Gregorio Vargas-Gutierrez