Patents by Inventor Paulo Ribeiro

Paulo Ribeiro 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: 20240115481
    Abstract: The present disclosure relates to a release composition comprising a protein and an active agent, wherein the active agent is released when in presence of an electrolyte solution. A kit and an article comprising the release composition of the present-subject matter are also encompassed.
    Type: Application
    Filed: November 27, 2023
    Publication date: April 11, 2024
    Inventors: Artur Manuel CAVACO PAULO, Filipa Daniela GOMES GONÇALVES, Artur Jorge ARAÚJO MAGALHÃES RIBEIRO, Carla Manuela PEREIRA MARINHO DA SILVA
  • Publication number: 20230360196
    Abstract: Provided herein are systems, media, and methods for roll-to-roll material (e.g. fabric) defect detection and/or quality control based on data received from an optical detection.
    Type: Application
    Filed: February 2, 2023
    Publication date: November 9, 2023
    Inventors: Gilberto MARTINS LOUREIRO, António ROCHA, Paulo RIBEIRO, Miguel Boaventura Teixeira GOMES
  • Publication number: 20230144705
    Abstract: Illumination modules (530) are described for use during manufacturing processes and subsequent material processing steps. The illumination modules (530) may assist with implementing methods for performing quality assurance or defect detection while material (510) is being manufactured or processed. Methods are also described for utilizing an illumination module to facilitate the detection of material properties or conformations as a part of quality assurance or defect detection algorithms.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 11, 2023
    Inventors: Gilberto MARTINS LOUREIRO, Antonio ROCHA, Paulo RIBEIRO, Márcio QUINTELA
  • Publication number: 20230087662
    Abstract: The present disclosure provides systems and methods for calibration. In one example, the method may comprise optical image analysis for calibration. The method may comprise generating an optical projection of one or more calibration features onto a material surface provided in a material fabrication or processing machine, and determining one or more spatial characteristics of the calibration features. The one or more spatial characteristics may comprise a distance, a position, an orientation, an alignment, a size, or a shape of one or more calibration features. The one or more spatial characteristics may be used to adjust at least one of (i) a position or an orientation of an imaging unit relative to the material surface and the material fabrication or processing machine, (ii) an angle or an inclination of the material surface relative to the imaging unit, and (iii) one or more imaging parameters of the imaging unit.
    Type: Application
    Filed: September 29, 2022
    Publication date: March 23, 2023
    Inventors: Gilberto MARTINS LOUREIRO, Antonio ROCHA, Paulo RIBEIRO, Ana Catarina VIOLANTE VIEIRA
  • Publication number: 20230021315
    Abstract: Systems and methods are disclosed for detecting defects during manufacturing processes for materials and products. The provided systems may utilize imaging units and computer detection algorithms to determine the presence or absence of defects in manufactured materials or products. Detection of defects in material or products by the disclosed systems may prompt intervention in the manufacturing process to correct the source of the defects.
    Type: Application
    Filed: August 4, 2022
    Publication date: January 26, 2023
    Inventors: Gilberto MARTINS LOUREIRO, Antonio ROCHA, Paulo RIBEIRO
  • Patent number: 10647122
    Abstract: A method of calibrating an inkjet printer, which comprises a fluid circuit (4), a print head (1) connected to the fluid circuit through an umbilical (19), this method comprising at least the following functions: calculate a difference between the viscosity of the ink used in the circuit, and a theoretical viscosity of this ink; as a function of this difference, correct data representative of a characteristic function that relates the pressure at a point referred to as the reference point in the fluid circuit or the print head, the ink density, the ink viscosity, the operating temperature and a velocity referred to as the nominal velocity of the ink jet generated by the print head, to form corrected data for said characteristic function.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: May 12, 2020
    Assignee: DOVER EUROPE SÀRL
    Inventors: Joao Paulo Ribeiro, Jean-Pierre Arpin, Francis Pourtier
  • Patent number: 10464334
    Abstract: A device for measuring the flow rate and viscosity of ink sent to a print head of an ink jet printer comprises: a restriction of the diameter of a conduit for the flow of ink arranged in the path thereof defined by the conduit; a sensor for measuring the pressure difference (Pin-Pout) between the pressure of fluid upstream of the restriction and the pressure of ink downstream of the restriction; a viscous leak, creating a pressure drop by friction loss, the viscous leak being in series with the restriction, in the path of the ink defined by the conduit; a sensor for measuring the pressure difference (PinV-PoutV) between the pressure of fluid upstream of the viscous leak and the pressure of ink downstream of the viscous leak; and a circuit for calculating the flow rate and viscosity of ink as a function of: (Pin-Pou)t and (PinV-PoutV).
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: November 5, 2019
    Assignee: DOVER EUROPE SÀRL
    Inventors: Alain Pagnon, Joao Paulo Ribeiro
  • Publication number: 20180326738
    Abstract: A device for measuring the flow rate and viscosity of ink sent to a print head of an ink jet printer comprises: a restriction of the diameter of a conduit for the flow of ink arranged in the path thereof defined by the conduit; a sensor for measuring the pressure difference (Pin-Pout) between the pressure of fluid upstream of the restriction and the pressure of ink downstream of the restriction; a viscous leak, creating a pressure drop by friction loss, the viscous leak being in series with the restriction, in the path of the ink defined by the conduit; a sensor for measuring the pressure difference (PinV-PoutV) between the pressure of fluid upstream of the viscous leak and the pressure of ink downstream of the viscous leak; and a circuit for calculating the flow rate and viscosity of ink as a function of: (Pin-Pout and (PinV-PoutV).
    Type: Application
    Filed: July 5, 2018
    Publication date: November 15, 2018
    Inventors: Alain Pagnon, Joao Paulo Ribeiro
  • Patent number: 10065427
    Abstract: A device (20) for measuring the flow rate of ink sent to a print head of an ink jet printer, comprising: a restriction (22) of the diameter of the flow of ink, arranged in the path thereof, sensors (26, 28) for measuring the pressure difference (Pin?Pout), between the pressure of fluid upstream of the restriction (Pin) and the pressure of ink downstream of the restriction (Pout).
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: September 4, 2018
    Assignee: DOVER EUROPE SÀRL
    Inventors: Alain Pagnon, Joao Paulo Ribeiro
  • Publication number: 20170274667
    Abstract: A device (20) for measuring the flow rate of ink sent to a print head of an ink jet printer, comprising: a restriction (22) of the diameter of the flow of ink, arranged in the path thereof, sensors (26, 28) for measuring the pressure difference (Pin?Pout), between the pressure of fluid upstream of the restriction (Pin) and the pressure of ink downstream of the restriction (Pout).
    Type: Application
    Filed: March 22, 2017
    Publication date: September 28, 2017
    Inventors: Alain Pagnon, Joao Paulo Ribeiro
  • Publication number: 20160347074
    Abstract: A method of calibrating an inkjet printer, which comprises a fluid circuit (4), a print head (1) connected to the fluid circuit through an umbilical (19), this method comprising at least the following functions: calculate a difference between the viscosity of the ink used in the circuit, and a theoretical viscosity of this ink; as a function of this difference, correct data representative of a characteristic function that relates the pressure at a point referred to as the reference point in the fluid circuit or the print head, the ink density, the ink viscosity, the operating temperature and a velocity referred to as the nominal velocity of the ink jet generated by the print head, to form corrected data for said characteristic function.
    Type: Application
    Filed: May 26, 2016
    Publication date: December 1, 2016
    Inventors: Joao Paulo Ribeiro, Jean-Pierre Arpin, Francis Pourtier
  • Patent number: 8673971
    Abstract: The present invention discloses 4-nerolidylcatechol and its derivatives isolated from South American/Amazon plants (Pothomorphe species) and their potential use as therapeutical agent for treatment of malarial symptoms, including malarial patients resistant to traditional drugs. The present invention also discloses a method for producing 4-nerolidylcatechol and their derivatives.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: March 18, 2014
    Assignee: Instituto Nacional de Pesquisa de Amazonia INPA
    Inventors: Ana Cristina Da Silva Pinto, Márcia Rúbia Silva Melo, Valter Ferreira De Andrade Neto, Francisco Célio Maia Chaves, Pedro Paulo Ribeiro Vieira, Adrian Martin Pohlit
  • Patent number: 8067942
    Abstract: A method for locating phase to ground faults in DC distribution systems. The method includes utilizing wavelet analysis using Multi-Resolution Analysis (MRA) as a signal processing tool for recognition of characteristic features in the voltage signal. The voltage signal contains characteristic information in the high frequency range above the switching frequencies of the PE converters which allows for localization of the fault.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: November 29, 2011
    Inventors: Yan Pan, Paulo Silveira, Michael Steurer, Thomas Baldwin, Paulo Ribeiro
  • Publication number: 20110136901
    Abstract: The present invention discloses 4-nerolidylcatechol and its derivatives isolated from South American/Amazon plants (Pothomorphe species) and their potential use as therapeutical agent for treatment of malarial symptoms, including malarial patients resistant to traditional drugs. The present invention also discloses a method for producing 4-nerolidylcatechol and their derivatives.
    Type: Application
    Filed: December 28, 2007
    Publication date: June 9, 2011
    Inventors: Ana Cristina Da Silva Pinto, Màrcia Rùbia Silva Melo, Valter Ferreira De Andrade Neto, Francisco Célio Maia Chaves, Pedro Paulo Ribeiro Vieira, Adrian Martin Pohlit
  • Publication number: 20090085574
    Abstract: A method for locating phase to ground faults in DC distribution systems. The method includes utilizing wavelet analysis using Multi-Resolution Analysis (MRA) as a signal processing tool for recognition of characteristic features in the voltage signal. The voltage signal contains characteristic information in the high frequency range above the switching frequencies of the PE converters which allows for localization of the fault.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 2, 2009
    Inventors: Yan Pan, Paulo Silveira, Michael Steurer, Thomas Baldwin, Paulo Ribeiro