Patents by Inventor Rafael Hernandez

Rafael Hernandez 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: 11918577
    Abstract: The invention relates to dipeptidyl peptidase-4 inhibitors, including saxagliptin and sitagliptin, for use in the topical eye treatment and/or prevention of retinal neurodegenerative diseases, in particular diabetic retinopathy and its associated microvascular impairment. The invention also encompasses pharmaceutical topical eye compositions for use in the topical treatment and/or prevention of these diseases.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: March 5, 2024
    Assignee: FUNDACIÓ HOSPITAL UNIVERSITARI VALL D'HEBRON—INSTITUT DE RECERCA
    Inventors: Rafael Simó Canonge, Cristina Hernández Pascual
  • Patent number: 11891547
    Abstract: A system and method for treatment of biomass originating from wastewater treatment biosolids to obtain valuable adhesives and composite materials is described herein. Some embodiments do not require purification of a biomass product or residue to produce an adhesive.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: February 6, 2024
    Assignee: University of Louisiana at Lafayette
    Inventors: William Chirdon, Mark Zappi, Rafael Hernandez, Chelsea Trahan
  • Patent number: 11639458
    Abstract: In order to substantially reduce friction during drilling operations, specialized lubricants need to be added to drilling fluid recipes. In general, lubricants reduce friction by forming a thin film of liquid that separates the solid surfaces in contact. The primary objective of this research is to evaluate the performance of enhanced activated sludge (EAS) as a lubricant in drilling fluids. EAS is activated sludge rich in lipids. The mixed consortium of microorganism in waste water treatment facilities in grown under a high carbon/nitrogen ratio to trigger lipid accumulation. Performance of EAS as drilling fluid additive was compared with commercial lubricants in terms of lubricity and flow properties. Lubricants were evaluated using water-based drilling mud at lubricant concentrations of 1.78, 3.11, 4.43, and 6.17 pounds per barrel (ppb). Experiments were carried out in a standard lubricity meter. The lubricity meter tests the ability of the lubricant in the drilling mud to reduce friction.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: May 2, 2023
    Assignee: University of Louisiana at Lafayette
    Inventors: Gopi Chand Tripuraneni, Mark Zappi, Rafael Hernandez
  • Patent number: 11578411
    Abstract: This invention presents a novel corrosion inhibitor. In the preferred embodiment, the inventive corrosion inhibitor comprises extracellular polymeric substances (EPS). In one embodiment, the invention presents a novel EPS corrosion inhibitor using waste activated sludge (WAS). In this embodiment, WAS is heated to release EPS from the microbial mixture.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: February 14, 2023
    Assignee: University of Louisiana at Lafayette
    Inventors: Rafael Hernandez, Liew Go
  • Publication number: 20220403423
    Abstract: The inventive biorefinery system and method accepts municipal solid waste, sewage sludges, and/or ag-wastes and processes it through three primary conversion unit operations to produce a variety of value-added products. In a preferred embodiment, the three primary conversion units are gasification, thermal depolymerization or torrefaction/pyrolysis, and biotreatment.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 22, 2022
    Applicant: University of Louisiana Lafayette
    Inventors: MARK E. ZAPPI, RAFAEL HERNANDEZ, DHAN LORD FORTELA, PRASHANTH BUCHIREDDY, EMMANUEL REVELLAME, WAYNE SHARP, JOHN GUILLORY, DANIEL GANG, WILLIAM HOLMES
  • Patent number: 11319223
    Abstract: An apparatus for preparing and dispensing a flocculant solution to dewatering an aqueous process stream includes a mixing pump, a maturing tank, and a feeding unit. The mixing pump mixes the flocculant solution and builds up a pressure onto the flocculant solution. The maturing pressure tank is fluidly connected with the mixing pump, so that the pressurized diluted flocculant solution is led from the mixing pump into the maturing pressure tank and matured therein under pressure that is above atmosphere pressure.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: May 3, 2022
    Assignee: Ecolab USA Inc.
    Inventors: José Rafael Hernández Carucci, Jochen Friedrich Knauer, Alan Smith
  • Publication number: 20220072616
    Abstract: A system includes a controller, a pretreating machine, and an additive manufacturing machine. The pretreating machine is coupled to the controller. The pretreating machine includes a pretreater structured to form an interface layer on a component. The additive manufacturing machine is coupled to the controller. The additive manufacturing machine includes a material feed and a forming beam. The material feed is configured to selectively provide a first amount of material on the interface layer. The forming beam is configured to substantially melt the first amount of material, thereby forming a first layer of a first material deposit on the interface layer.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: CUMMINS INC.
    Inventors: Howard S. Savage, Roger D. England, Todd M. Wieland, Rafael Hernandez Ruiz Esparza, Nikhil Doiphode, John A. Rupp
  • Patent number: 11203066
    Abstract: A system includes a controller, a pretreating machine, and an additive manufacturing machine. The pretreating machine is coupled to the controller. The pretreating machine includes a pretreater structured to form an interface layer on a component. The additive manufacturing machine is coupled to the controller. The additive manufacturing machine includes a material feed and a forming beam. The material feed is configured to selectively provide a first amount of material on the interface layer. The forming beam is configured to substantially melt the first amount of material, thereby forming a first layer of a first material deposit on the interface layer.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: December 21, 2021
    Assignee: Cummins Inc.
    Inventors: Howard S. Savage, Roger D. England, Todd M. Wieland, Rafael Hernandez Ruiz Esparza, Nikhil Doiphode, John A. Rupp
  • Patent number: 11199071
    Abstract: A buoyancy assist tool has an outer case with a rupture disk assembly connected therein. The buoyancy assist tool defines the upper end of a buoyancy chamber in a well casing. A sleeve in the outer case traps the rupture disk membrane after it has ruptured to provide full bore flow through the casing.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: December 14, 2021
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Lonnie Carl Helms, Kevin Wendell Ardoin, Stephen Allen Yeldell, Julio Alberto Cornejo, Frank Vinicio Acosta, Saul Emmanuel Vazquez Niebla, Rafael Hernandez
  • Publication number: 20210316029
    Abstract: A method and device for treating contaminated or potentially contaminated items is provided. The method will include the steps of placing the items in a reactor. The reactor is then sealed and ozone or ozonated gas is sent into the reactor. The items are held in the reactor long enough to complete the decontamination process. The reactor is then opened. Next there is a period of passive reaction so that the ozone can be degraded from the pores and surfaces of the items. The device provided herein includes a reactor, an ozone generator, a rack for holding said items; and a monitor for determining the level of ozone in the reactor.
    Type: Application
    Filed: June 14, 2021
    Publication date: October 14, 2021
    Inventors: Mark E. Zappi, William Holmes, Andrei Chistoserdov, Wayne Sharp, Alex Zappi, Rafael Hernandez, William Chirdon
  • Publication number: 20210308312
    Abstract: A rack for sanitizing or cleaning medical or personal protective equipment is claimed herein. The rack has at least two stringers that run the length of the rack. The rack has at least two vertical grates that are spaced apart from each other along the stringers. The spacing between the grates will be sufficient such that a standard respiratory mask (e.g. N95) may be placed between two adjacent grates and be held in a vertical orientation.
    Type: Application
    Filed: April 1, 2021
    Publication date: October 7, 2021
    Inventors: Mark E. Zappi, William Holmes, Andrei Chistoserdov, Wayne Sharp, Alex Zappi, Rafael Hernandez, William Chirdon, Don Begneaud, Thomas Broussard
  • Publication number: 20210290805
    Abstract: A method and device for treating contaminated or potentially contaminated items is provided. The method will include the steps of placing the items in a reactor. The reactor is then sealed and ozone or ozonated gas is sent into the reactor. The items are held in the reactor long enough to complete the decontamination process. The reactor is then opened. Next there is a period of passive reaction so that the ozone can be degraded from the pores and surfaces of the items. The device provided herein includes a reactor, an ozone generator, a rack for holding said items; and a monitor for determining the level of ozone in the reactor.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 23, 2021
    Inventors: Mark E. Zappi, William Holmes, Andrei Chistoserdov, Wayne Sharp, Alex Zappi, Rafael Hernandez, William Chirdon
  • Publication number: 20210253921
    Abstract: A system and method for treatment of biomass originating from wastewater treatment biosolids to obtain valuable adhesives and composite materials is described herein. Some embodiments do not require purification of a biomass product or residue to produce an adhesive.
    Type: Application
    Filed: March 18, 2021
    Publication date: August 19, 2021
    Inventors: William Chirdon, Mark Zappi, Rafael Hernandez, Chelsea Trahan
  • Publication number: 20210188679
    Abstract: A Biorefinery System (BIOSYS) that effectively treats all human activity-derived waste (black water, grey water, and food waste streams) using biological systems and that produces as process by-products: recovered potable water, liberated free oxygen, edible protein cake (with and without lipids), soil amendments, and machinery lube oils. Additionally, the system captures and chemically binds carbon dioxide into microbial cells and associated by-products, thus producing recovered usable returned cabin air.
    Type: Application
    Filed: February 11, 2021
    Publication date: June 24, 2021
    Inventors: Mark E. Zappi, Daniel Gang, Emmanuel Revellame, Andrei Chistoserdov, Rafael Hernandez, Rakesh Bajpai, Wayne Sharp, Dhan Fortela
  • Patent number: 10954399
    Abstract: The present disclosure provides stable, low chloride paint detackifier compositions. Also disclosed are methods of making the paint detackifier compositions and methods of using the paint detackifier compositions. The detackifier may be made from cationized starch and sodium aluminate. The starch can be wheat starch, corn starch, tapioca starch, potato starch, rice starch, sweet potato starch, sago starch, mung bean starch, arrowroot starch, and any combination thereof.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: March 23, 2021
    Assignee: ECOLAB USA INC.
    Inventors: José Rafael Hernández Carucci, Joseph Peter Miknevich
  • Patent number: 10947144
    Abstract: A Biorefinery System (BIOSYS) that effectively treats all human activity-derived waste (black water, grey water, and food waste streams) using biological systems and that produces as process by-products: recovered potable water, liberated free oxygen, edible protein cake (with and without lipids), soil amendments, and machinery lube oils. Additionally, the system captures and chemically binds carbon dioxide into microbial cells and associated by-products, thus producing recovered usable returned cabin air.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: March 16, 2021
    Assignee: University of Louisiana at Lafayette
    Inventors: Mark E. Zappi, Daniel Gang, Emmanuel Revellame, Andrei Chistoserdov, Rafael Hernandez, Rakesh Bajpai, Wayne Sharp, Dhan Fortela
  • Publication number: 20200284121
    Abstract: A buoyancy assist tool has an outer case with a rupture disk assembly connected therein. The buoyancy assist tool defines the upper end of a buoyancy chamber in a well casing. A sleeve in the outer case traps the rupture disk membrane after it has ruptured to provide full bore flow through the casing.
    Type: Application
    Filed: November 20, 2017
    Publication date: September 10, 2020
    Inventors: Lonnie Carl Helms, Kevin Wendell Ardoin, Stephen Allen Yeldell, Julio Alberto Cornejo, Frank Vinicio Acosta, Saul Emmanuel Vazquez Niebla, Rafael Hernandez
  • Publication number: 20200232101
    Abstract: This invention presents a novel corrosion inhibitor. In the preferred embodiment, the inventive corrosion inhibitor comprises extracellular polymeric substances (EPS). In one embodiment, the invention presents a novel EPS corrosion inhibitor using waste activated sludge (WAS). In this embodiment, WAS is heated to release EPS from the microbial mixture.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Inventors: Rafael Hernandez, Liew Go
  • Publication number: 20200087553
    Abstract: A system and method for treatment of biomass originating from wastewater treatment biosolids to obtain valuable adhesives and composite materials is described herein. Some embodiments do not require purification of a biomass product or residue to produce an adhesive. Some embodiments comprise a treatment of post extraction biomass residue configured to produce an adhesive. Use of post extraction biomass residue adds value to alternative energy produced by extracting oil from biomass.
    Type: Application
    Filed: September 9, 2019
    Publication date: March 19, 2020
    Inventors: William Chirdon, Mark Zappi, Rafael Hernandez
  • Publication number: 20200071590
    Abstract: In order to substantially reduce friction during drilling operations, specialized lubricants need to be added to drilling fluid recipes. In general, lubricants reduce friction by forming a thin film of liquid that separates the solid surfaces in contact. The primary objective of this research is to evaluate the performance of enhanced activated sludge (EAS) as a lubricant in drilling fluids. EAS is activated sludge rich in lipids. The mixed consortium of microorganism in waste water treatment facilities in grown under a high carbon/nitrogen ratio to trigger lipid accumulation. Performance of EAS as drilling fluid additive was compared with commercial lubricants in terms of lubricity and flow properties. Lubricants were evaluated using water-based drilling mud at lubricant concentrations of 1.78, 3.11, 4.43, and 6.17 pounds per barrel (ppb). Experiments were carried out in a standard lubricity meter. The lubricity meter tests the ability of the lubricant in the drilling mud to reduce friction.
    Type: Application
    Filed: November 5, 2019
    Publication date: March 5, 2020
    Inventors: Gopi Chand Tripuraneni, Mark Zappi, Rafael Hernandez