Patents by Inventor Alejandro Barrera

Alejandro Barrera 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: 10023132
    Abstract: A vehicle door trim panel fastening system is presented herein. The system includes a stake joint and mating part. The stake joint extends from at least a portion of a base panel and has a plurality of spacers. The mating part is joined to at least a portion of a door trim panel and has a plurality of protruding lock ribs. Moreover, the mating part is configured to operatively connect to the stake joint such that the mating part is interposed between the proximal end of each of the plurality of spacers and a mushroom head. The mushroom head is also configured to form around the plurality of lock ribs so as to avoid relative movement of the operatively connected mating part.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: July 17, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alejandro Barrera Torres, Jesus Edgar Dominguez Cuevas
  • Publication number: 20180194300
    Abstract: A vehicle door trim panel fastening system is presented herein. The system includes a stake joint and mating part. The stake joint extends from at least a portion of a base panel and has a plurality of spacers. The mating part is joined to at least a portion of a door trim panel and has a plurality of protruding lock ribs. Moreover, the mating part is configured to operatively connect to the stake joint such that the mating part is interposed between the proximal end of each of the plurality of spacers and a mushroom head. The mushroom head is also configured to form around the plurality of lock ribs so as to avoid relative movement of the operatively connected mating part.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 12, 2018
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alejandro Barrera Torres, Jesus Edgar Dominguez Cuevas
  • Patent number: 9994165
    Abstract: A vehicle door has a metal door frame having at least one opening, a decorative interior door panel, and at least one post projecting outwardly from an inner side of the decorative interior door panel. The post may have a length, cross sectional shape and cross sectional dimensions to engage within the opening when the decorative interior door panel is secured to the metal door frame. The post and the opening may cooperate to delay separation and movement of the decorative interior door panel upwardly and away from the metal door frame during a side impact crash on the vehicle door.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: June 12, 2018
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Alejandro Barrera Torres, Jesus Edgar E. Dominguez Cuevas
  • Patent number: 9416163
    Abstract: The invention refers to the design, synthesis and evaluation of 6 synthetic oligopeptides, that have not been previously described, designed from the T and B epitopes of allergens of group I of intradomiciliary mites of the species Dermatophagoides pteronyssinus, Dermatophagoides farinae and Blomia tropicalis, which can be used in the immunomodulation of individuals having immunocompetent systems and in the production of IgY polyclonal antibodies. The invention relates to a first method for obtaining a composition of IgY polyclonal antibodies that can be used as a diagnostic reagent having low cost and high reactivity in respect of intradomiciliary mites, and a second method for the detection of mite allergens, using the IgY antibody composition developed in the first method. The invention further relates to the composition of the IgY polyclonal antibodies.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: August 16, 2016
    Assignees: FUNDACION UNIVERSIDAD DEL NORTE, PONTIFICIA UNIVERSIDAD JAVERIANA
    Inventors: Luis Alejandro Barrera, Eduardo Egea, Johana Espejo, Catalina Sosa, Elkin Navarro, Gloria Garavito, Dary Luz Mendoza, Leonardo Lareo, Luis Miguel Renjifo Martinez
  • Publication number: 20120107335
    Abstract: The invention refers to the design, synthesis and evaluation of 6 synthetic oligopeptides, that have not been previously described, designed from the T and B epitopes of allergens of group I of intradomiciliary mites of the species Dermatophagoides pteronyssinus, Dermatophagoides farinae and Blomia tropicalis, which can be used in the immunomodulation of individuals having immunocompetent systems and in the production of IgY polyclonal antibodies. The invention relates to a first method for obtaining a composition of IgY polyclonal antibodies that can be used as a diagnostic reagent having low cost and high reactivity in respect of intradomiciliary mites, and a second method for the detection of mite allergens, using the IgY antibody composition developed in the first method. The invention further relates to the composition of the IgY polyclonal antibodies.
    Type: Application
    Filed: March 17, 2010
    Publication date: May 3, 2012
    Applicants: PONTIFICIA UNIVERSIDAD JAVERIANA, FUNDACION UNIVERSIDAD DEL NORTE
    Inventors: Luis Alejandro Barrera, Eduardo Egea, Johana Espejo, Catalina Sosa, Elkin Navarro, Gloria Garavito, Dary Luz Mendoza
  • Patent number: 6341590
    Abstract: A rotary engine including a static toroidal cavity having an inlet port for introducing fuel and air to the cavity and an outlet port for exhausting products of combustion from the cavity. A first power train including a first output shaft and a second power train including a second output shaft are located partially within the cavity and able to rotate in the first direction. A plurality of pistons are positioned around a perimeter of the toroidal cavity and between the first and second power trains. The plurality of pistons are movable with respect to the cavity and include a first set of pistons connected to rotate with the first power train and a second set of pistons connected to rotate with the second power train. The plurality of pistons defining a plurality of chambers therebetween.
    Type: Grant
    Filed: April 28, 2000
    Date of Patent: January 29, 2002
    Inventors: René Manuel Barrera, René Alejandro Barrera