Patents by Inventor Roberto Contreras

Roberto Contreras 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: 20230276833
    Abstract: Water- and energy-saving systems and methods for producing lime-cooked masa are described. Such methods generally include adding water to maize kernel in a first predetermined proportion, the maize kernel having endosperm, germ, pericarp, and tip cap components. Using a first conditioner, the maize kernel is conditioned for a first predetermined amount of time to cause moisture absorption to within a first predetermined range. The maize kernel is limed. The maize kernel is cooked, using a cooker, in an environment of steam. After the maize kernel is cooked, water is added to the maize kernel in a second predetermined proportion and, using a second conditioner, the maize kernel is conditioned for a second predetermined amount of time to cause moisture absorption to within a second predetermined range. The maize kernel is milled using one or more mills.
    Type: Application
    Filed: May 15, 2023
    Publication date: September 7, 2023
    Inventors: Felipe A. Rubio, Roberto Contreras
  • Patent number: 11672264
    Abstract: Water- and energy-saving systems and methods for producing lime-cooked masa are described. Such methods generally include adding water to maize kernel in a first predetermined proportion, the maize kernel having endosperm, germ, pericarp, and tip cap components. Using a first conditioner, the maize kernel is conditioned for a first predetermined amount of time to cause moisture absorption to within a first predetermined range. The maize kernel is limed. The maize kernel is cooked, using a cooker, in an environment of steam. After the maize kernel is cooked, water is added to the maize kernel in a second predetermined proportion and, using a second conditioner, the maize kernel is conditioned for a second predetermined amount of time to cause moisture absorption to within a second predetermined range. The maize kernel is milled using one or more mills.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: June 13, 2023
    Assignee: GRUMA S.A.B. DE C.V.
    Inventors: Felipe A. Rubio, Roberto Contreras
  • Publication number: 20220009801
    Abstract: The disclosure refers to a method, reaction chamber and system for treatment of liquids in continuous flow including the steps of receiving a liquid for treatment in a reaction chamber; converting q flow of liquid for treatment in a biphasic liquid-gas flow; directing the biphasic flow to a central section of the reaction chamber, where an electric field is applied; ionizing the gaseous fraction of the biphasic flow that passes through said central section sustaining an ionization regime generating non-thermal plasma throughout the central section of the reaction chamber leading the biphasic flow under the ionization regime to a discharge section of the reaction chamber, where the electric field is applied, generating the deionization of the gaseous fraction and causing the biphasic flow to reduce its velocity, which results in the condensation of biphasic flow; and removing a flow of treated liquid from said discharge section.
    Type: Application
    Filed: November 16, 2018
    Publication date: January 13, 2022
    Inventors: Alfredo ZOLEZZI GARRETÓN, Maximiliano SAONA ACUÑA, Rubén VIÑUELA SEPÚLVEDA, Roberto CONTRERAS MACHUCA, Alfredo ZOLEZZI CAMPUSANO, Frederik KNOP RODRÍGUEZ, Javier URRUTIA PIEPER
  • Publication number: 20210127721
    Abstract: Water- and energy-saving systems and methods for producing lime-cooked masa are described. Such methods generally include adding water to maize kernel in a first predetermined proportion, the maize kernel having endosperm, germ, pericarp, and tip cap components. Using a first conditioner, the maize kernel is conditioned for a first predetermined amount of time to cause moisture absorption to within a first predetermined range. The maize kernel is limed. The maize kernel is cooked, using a cooker, in an environment of steam. After the maize kernel is cooked, water is added to the maize kernel in a second predetermined proportion and, using a second conditioner, the maize kernel is conditioned for a second predetermined amount of time to cause moisture absorption to within a second predetermined range. The maize kernel is milled using one or more mills.
    Type: Application
    Filed: January 13, 2021
    Publication date: May 6, 2021
    Inventors: Felipe A. Rubio, Roberto Contreras
  • Patent number: 10912320
    Abstract: Water- and energy-saving systems and methods for producing lime-cooked masa are described. Such methods generally include adding water to maize kernel in a first predetermined proportion, the maize kernel having endosperm, germ, pericarp, and tip cap components. Using a first conditioner, the maize kernel is conditioned for a first predetermined amount of time to cause moisture absorption to within a first predetermined range. The maize kernel is limed. The maize kernel is cooked, using a cooker, in an environment of steam. After the maize kernel is cooked, water is added to the maize kernel in a second predetermined proportion and, using a second conditioner, the maize kernel is conditioned for a second predetermined amount of time to cause moisture absorption to within a second predetermined range. The maize kernel is milled using one or more mills.
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: February 9, 2021
    Assignee: GRUMA S.A.B. DE CV
    Inventors: Felipe A. Rubio, Roberto Contreras
  • Publication number: 20200054051
    Abstract: Water- and energy-saving systems and methods for producing lime-cooked masa are described. Such methods generally include adding water to maize kernel in a first predetermined proportion, the maize kernel having endosperm, germ, pericarp, and tip cap components. Using a first conditioner, the maize kernel is conditioned for a first predetermined amount of time to cause moisture absorption to within a first predetermined range. The maize kernel is limed. The maize kernel is cooked, using a cooker, in an environment of steam. After the maize kernel is cooked, water is added to the maize kernel in a second predetermined proportion and, using a second conditioner, the maize kernel is conditioned for a second predetermined amount of time to cause moisture absorption to within a second predetermined range. The maize kernel is milled using one or more mills.
    Type: Application
    Filed: August 5, 2019
    Publication date: February 20, 2020
    Inventors: Felipe A. Rubio, Roberto Contreras
  • Patent number: 9814242
    Abstract: Biologically pure cultures of Bacillus subtilis Maseca-1 strain were isolated from the pericarp of nixtamalized corn. The Bacillus Maseca-1 strain was characterized and found to produce peptides and/or other compounds that have antimicrobial activity. An extract prepared from the Bacillus Maseca-1 strain is active against microorganisms such as bacteria and mold and may be used as an agent to inhibit the growth of undesirable microorganisms and thereby prevent spoilage and extend the shelf life in foods.
    Type: Grant
    Filed: September 22, 2015
    Date of Patent: November 14, 2017
    Assignee: GRUMA S.A.B. DE C.V.
    Inventors: Felipe A. Rubio, Roberto Contreras, J. Fernando Ramirez
  • Patent number: 9623417
    Abstract: A water saving and energy saving process the continuous production of whole grain flour and whole gluten-free flour is provided. The process includes preconditioning whole-grain or seed with water and uses an energy efficient blanching treatment with saturated steam. The process also provides flour having a bimodal size mixture of material having improved viscosity. The whole grain and whole gluten-free flour can be used to prepare grain products and baked foods.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: April 18, 2017
    Assignee: INVESTIGACION TECNICA AVANZADA S.A. DE C.V.
    Inventors: Felipe A. Rubio, Manuel J. Rubio, Roberto Contreras M.
  • Patent number: 9604220
    Abstract: A water saving and energy saving process the continuous production of whole grain flour and whole gluten-free flour is provided. The process includes preconditioning whole-grain or seed with water and uses an energy efficient blanching treatment with saturated steam. The process also provides flour having a bimodal size mixture of material having improved viscosity. The whole grain and whole gluten-free flour can be used to prepare grain products and baked foods.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: March 28, 2017
    Assignee: INVESTIGACION TECNICA AVANZADA S.A. DE C.V.
    Inventors: Felipe A. Rubio, Manuel J. Rubio, Roberto Contreras
  • Publication number: 20160175844
    Abstract: A water saving and energy saving process the continuous production of whole grain flour and whole gluten-free flour is provided. The process includes preconditioning whole-grain or seed with water and uses an energy efficient blanching treatment with saturated steam. The process also provides flour having a bimodal size mixture of material having improved viscosity. The whole grain and whole gluten-free flour can be used to prepare grain products and baked foods.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Felipe A. RUBIO, Manuel J. RUBIO, Roberto CONTRERAS M.
  • Publication number: 20160175845
    Abstract: A water saving and energy saving process the continuous production of whole grain flour and whole gluten-free flour is provided. The process includes preconditioning whole-grain or seed with water and uses an energy efficient blanching treatment with saturated steam. The process also provides flour having a bimodal size mixture of material having improved viscosity. The whole grain and whole gluten-free flour can be used to prepare grain products and baked foods.
    Type: Application
    Filed: December 19, 2014
    Publication date: June 23, 2016
    Inventors: Felipe A. RUBIO, Manuel J. RUBIO, Roberto CONTRERAS M.
  • Publication number: 20160007614
    Abstract: Biologically pure cultures of Bacillus subtilis Maseca-1 strain were isolated from the pericarp of nixtamalized corn. The Bacillus Maseca-1 strain was characterized and found to produce peptides and/or other compounds that have antimicrobial activity. An extract prepared from the Bacillus Maseca-1 strain is active against microorganisms such as bacteria and mold and may be used as an agent to inhibit the growth of undesirable microorganisms and thereby prevent spoilage and extend the shelf life in foods.
    Type: Application
    Filed: September 22, 2015
    Publication date: January 14, 2016
    Inventors: Felipe A. Rubio, Roberto Contreras, J. Fernando Ramirez
  • Patent number: 9144588
    Abstract: Biologically pure cultures of Bacillus subtilis were isolated from the pericarp of nixtamalized corn. The Bacillus microorganisms were characterized and found to produce novel peptides which have antimicrobial activity. The Bacillus microorganisms are active against Gram-positive bacteria and may be used as an agent to prevent spoilage in foods. The Bacillus microorganisms may be included in probiotic food compositions to help maintain healthy gastrointestinal flora and modulate animal digestion.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: September 29, 2015
    Assignee: INVESTIGACION DE TECNOLOGIA AVANZADA, S.A. DE C.V.
    Inventors: Felipe A. Rubio, Manuel J. Rubio, Roberto Contreras, J. Fernando Ramirez
  • Publication number: 20130216511
    Abstract: Biologically pure cultures of Bacillus subtilis were isolated from the pericarp of nixtamalized corn. The Bacillus microorganisms were characterized and found to produce novel peptides which have antimicrobial activity. The Bacillus microorganisms are active against Gram-positive bacteria and may be used as an agent to prevent spoilage in foods. The Bacillus microorganisms may be included in probiotic food compositions to help maintain healthy gastrointestinal flora and modulate animal digestion.
    Type: Application
    Filed: September 14, 2011
    Publication date: August 22, 2013
    Applicant: INVESTIGACION DE TECNOLOGIA AVANZADA, S.A. DE C.V.
    Inventors: Felipe A. Rubio, Manuel J. Rubio, Roberto Contreras, J. Fernando Ramirez
  • Patent number: 8263154
    Abstract: A process and apparatus for the continuous production of whole nixtamalized corn flour, includes a whole clean corn precooking with a lime solution to effect a partial hydrolysis of pericarp and bran with reduced soluble corn loss in Nejayote wastewater. Moisture content is then stabilized, followed by milling and drying preconditioned corn for further endosperm gelatinization in the whole ground kernel, venting and separating the dry-milled fractions. Adiabatic cooling under a partial vacuum of the vented dry-grind fractions and classifying with an upwardly airstream to strip the fine-grind from the coarse grind while the latter is separated downwardly as a moving bed. Venting and separating the classified fine grind fraction; sifting and recovering the cooled and classified fine grind so segregated from the coarse grind, remilling and further screening the coarse grind produces a whole nixtamalized corn flour for tortilla and whole grain corn-based foods.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: September 11, 2012
    Inventors: Felipe A. Rubio, Manuel J. Rubio, Roberto Contreras, Francisco J. Sosa, Felipe J. Sánchez, J. Fernando Ramirez
  • Publication number: 20100080881
    Abstract: A process and apparatus for the continuous production of whole nixtamalized corn flour, includes a whole clean corn precooking with a lime solution to effect a partial hydrolysis of pericarp and bran with reduced soluble corn loss in Nejayote wastewater. Moisture content is then stabilized, followed by milling and drying preconditioned corn for further endosperm gelatinization in the whole ground kernel, venting and separating the dry-milled fractions. Adiabatic cooling under a partial vacuum of the vented dry-grind fractions and classifying with an upwardly airstream to strip the fine-grind from the coarse grind while the latter is separated downwardly as a moving bed. Venting and separating the classified fine grind fraction; sifting and recovering the cooled and classified fine grind so segregated from the coarse grind, remilling and further screening the coarse grind produces a whole nixtamalized corn flour for tortilla and whole grain corn-based foods.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Inventors: Felipe A. Rubio, Manuel J. Rubio, Roberto Contreras, Francisco J. Sosa, Felipe J. Sanchez, J. Fernando Ramirez
  • Patent number: 7459174
    Abstract: Precooked and partially-debranned corn flour is continuously produced by an enzymatic precooking using a commercial blend of xylanase, endoamylase and endoprotease as a processing aid. The low-temperature and neutral-pH precooking with an endoenzyme solution effected a partial bran hydrolysis while avoiding excessive pregelatinization, reduced washing and corn solid loss in wastewater. Moisture content is then stabilized, followed by milling and drying at a high-temperature and short-time to produce a controlled gelatinization and denaturation in the ground kernel, cooling and further drying the dried-ground particle. A fine particle size or flour is separated and recovered from the coarser particle which is also segregated to isolate a partially hydrolysed bran fraction for integral flour or animal feed diet, remilling and sieving the coarser particle to produce an instant corn flour for snack, and admixing the fine particle with lime to obtain a masa flour for tortilla and other corn foods.
    Type: Grant
    Filed: October 27, 2004
    Date of Patent: December 2, 2008
    Assignee: Investigacion De Tecnologia Avanzada, S.A. De C.V.
    Inventors: Felipe A. Rubio, Manuel J. Rubio, Roberto Contreras, J. Fernando Ramirez, Rodrigo Lobeira Massu
  • Patent number: D744274
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: December 1, 2015
    Assignee: INVESTIGACION DE TECNOLOGIA AVANZADA S.A. DE C.V.
    Inventors: Felipe A. Rubio, Roberto Contreras, Juan Antonio Martinez
  • Patent number: D804610
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: December 5, 2017
    Assignee: GRUMA S.A.B. DE C.V.
    Inventors: Felipe A. Rubio, Roberto Contreras Medellin, Ruben Trevino Quintanilla
  • Patent number: D834966
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 4, 2018
    Assignee: GRUMA S.A.B. DE C.V.
    Inventors: Felipe A. Rubio, Roberto Contreras, Juan A. Martinez