Patents by Inventor Sergio Freitas

Sergio Freitas 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).

  • System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
    Patent number: 11976385
    Abstract: The present invention is directed to a method and a system for the production of at least one polymeric yarn comprising means for mixing a polymer (1) with a first solvent yielding a mixture; means for homogenizing the mixture; means for rendering the mixture inert (21, 22, 23); means for dipping the mixture into a quenching bath (30), wherein an air gap is maintained before the mixture reaches the quenching bath (30) liquid surface forming at least one polymeric yarn; means for drawing (41) the at least one polymeric yarn at least once; means for washing (5) the at least one polymeric yarn with a second solvent that is more volatile than the first solvent; means for heating the at least one polymeric yarn (6); means for drawing at room temperature (7) the at least one polymeric yarn at least once; and means for heat drawing (8) the at least one polymeric yarn at least once.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: May 7, 2024
    Assignee: Braskem America, Inc.
    Inventors: Marcos Roberto Paulino Bueno, Andre Penaquioni, Alessandro Bernardi, Sergio Luiz Dias Almeida, Leandro Ohara Oliveira Santa Rosa, Patricia Freitas Oliveira Fialho, Daniela Zaira Rauber
  • System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
    Patent number: 11970788
    Abstract: The present invention is directed to a method and a system for the production of at least one polymeric yarn comprising means for mixing a polymer (1) with a first solvent yielding a mixture; means for homogenizing the mixture; means for rendering the mixture inert (21, 22, 23); means for dipping the mixture into a quenching bath (30), wherein an air gap is maintained before the mixture reaches the quenching bath (30) liquid surface forming at least one polymeric yarn; means for drawing (41) the at least one polymeric yarn at least once; means for washing (5) the at least one polymeric yarn with a second solvent that is more volatile than the first solvent; means for heating the at least one polymeric yarn (6); means for drawing at room temperature (7) the at least one polymeric yarn at least once; and means for heat drawing (8) the at least one polymeric yarn at least once.
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: April 30, 2024
    Assignee: Braskem America, Inc.
    Inventors: Marcos Roberto Paulino Bueno, Andre Penaquioni, Alessandro Bernardi, Sergio Luiz Dias Almeida, Leandro Ohara Oliveira Santa Rosa, Patricia Freitas Oliveira Fialho, Daniela Zaira Rauber
  • Scheduled tests for endpoint agents
    Patent number: 11755467
    Abstract: Techniques for scheduled tests for endpoint agents are disclosed.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: September 12, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Nelson Rodrigues, Santiago Alessandri, Sergio Freitas, Ricardo V. Oliveira
  • SCHEDULED TESTS FOR ENDPOINT AGENTS
    Publication number: 20210390039
    Abstract: Techniques for scheduled tests for endpoint agents are disclosed.
    Type: Application
    Filed: June 22, 2021
    Publication date: December 16, 2021
    Inventors: Nelson Rodrigues, Santiago Alessandri, Sergio Freitas, Ricardo V. Oliveira
  • Scheduled tests for endpoint agents
    Patent number: 11042474
    Abstract: Techniques for scheduled tests for endpoint agents are disclosed.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: June 22, 2021
    Assignee: THOUSANDEYES LLC
    Inventors: Nelson Rodrigues, Santiago Alessandri, Sergio Freitas, Ricardo V. Oliveira
  • SCHEDULED TESTS FOR ENDPOINT AGENTS
    Publication number: 20200242019
    Abstract: Techniques for scheduled tests for endpoint agents are disclosed.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Inventors: Nelson Rodrigues, Santiago Alessandri, Sergio Freitas, Ricardo V. Oliveira
  • Scheduled tests for endpoint agents
    Patent number: 10671520
    Abstract: Techniques for scheduled tests for endpoint agents are disclosed.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: June 2, 2020
    Assignee: ThousandEyes, Inc.
    Inventors: Nelson Rodrigues, Santiago Alessandri, Sergio Freitas, Ricardo V. Oliveira