Patents by Inventor Maria Duarte
Maria Duarte 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).
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Publication number: 20240000504Abstract: An apparatus includes a body assembly, a shaft, and at least one tip member. The shaft extends distally from the body assembly and includes a distal end. The at least one tip member is secured at the distal end of the shaft. The at least one tip member and the distal end of the shaft are sized and configured to fit within a chamber of a heart of a human subject. The at least one tip member includes an atraumatic distal tip and an exterior dilation surface adjacent to the atraumatic distal tip. The atraumatic hollow distal tip may present an angled profile to minimize risk of coring tissue and is configured to deliver electrical energy to tissue for forming an opening through the tissue. The exterior dilation surface is configured to enlarge the opening formed by the atraumatic distal tip.Type: ApplicationFiled: June 15, 2023Publication date: January 4, 2024Inventors: Paul A. Suárez, Maria Duarte, Erica E. Lovejoy, Kokou A. Amefia, Debby E. Highsmith, Eajer Toh
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Publication number: 20240000497Abstract: A transseptal puncture system and method uses a guiding instrument, and an atraumatic puncture instrument longitudinally movable therein, with a first electrode configured for ablation and a second electrode electrically insulated from the first electrode. An impedance monitoring module is configured to measure at least an impedance at the second electrode, and an electrical generator is configured to selectively apply electrical energy to the first electrode based at least in part on the measured impedance at the second electrode. Moreover, impedance measurements at the first and second electrodes are used to determine relative positions of the instruments in the approach, contact, ablation and puncture of the septum.Type: ApplicationFiled: June 15, 2023Publication date: January 4, 2024Inventors: Tzachi Levy, Vitaliy Putra, Kruti Shah, Tonima Quabili, Paul A. Suárez, Maria Duarte, Erica E. Lovejoy, Kokou A. Amefia, Debby E. Highsmith, Eajer Toh
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Patent number: 11260367Abstract: The present invention relates to a catalytic system for the preparation of light olefins through the dehydration of alcohols, including at least one catalyst and at least one co-catalyst, wherein the catalyst is selected from among catalysts for the catalytic dehydration of ethanol and with the co-catalyst selected from among oxy-ketonization reaction catalysts, wherein the catalyst:co-catalyst mass ratio is within a range of 0.5:0.125 to 2:10, and preferably within a range of 1:0.25 to 1:5.Type: GrantFiled: December 12, 2018Date of Patent: March 1, 2022Assignees: Instituto Nacional de Tecnologia, Braskem S.A.Inventors: Marco Andre Fraga, Lucia Gorenstin Appel, Alexandre Barros Gaspar, Felipe Jorge Lima da Silveira, Andrea Maria Duarte de Farias, Clarissa Perdomo Rodrigues, Fabio Bellot Noronha, Roberto Werneck do Carmo, Andrea Marins de Oliveira, Luiza Roza
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Patent number: 10925506Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wires and a thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: GrantFiled: August 29, 2019Date of Patent: February 23, 2021Assignee: BiOSENSE WEBSTER (ISRAEL) LTD.Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Publication number: 20200188882Abstract: The present invention relates to a catalytic system for the preparation of light olefins through the dehydration of alcohols, including at least one catalyst and at least one co-catalyst, wherein the catalyst is selected from among catalysts for the catalytic dehydration of ethanol and with the co-catalyst selected from among oxy-ketonization reaction catalysts, wherein the catalyst:co-catalyst mass ratio is within a range of 0.5:0.125 to 2:10, and preferably within a range of 1:0.25 to 1:5.Type: ApplicationFiled: December 12, 2018Publication date: June 18, 2020Applicant: Braskem S.A.Inventors: Marco Andre Fraga, Lucia Gorenstin Appel, Alexandre Barros Gaspar, Felipe Jorge Lima da Silveira, Andrea Maria Duarte de Farias, Clarissa Perdomo Rodrigues, Fabio Bellot Noronha, Roberto Werneck do Carmo, Andrea Marins de Oliveira, Luiza Roza
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Publication number: 20190380604Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wires and a thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: ApplicationFiled: August 29, 2019Publication date: December 19, 2019Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Publication number: 20190352865Abstract: The invention relates to an injector device with plastic for repairing cracks, which has an injector gun with an injector nozzle for the outlet of the plastic on a first end, a collector for receiving plastic beads connected to the second end of the injector gun, supply means configured to move the plastic beads from the collector along the injector gun to the injector nozzle, and heating means along the injector gun in order to heat the plastic beads until they are in a liquid state before the outlet thereof through the injector nozzle.Type: ApplicationFiled: July 9, 2018Publication date: November 21, 2019Inventors: Jorge Osmar VAZQUEZ OCAMPOS, Natalia Maria DUARTE DE VAZQUEZ, Ruben Osvaldo VAZQUEZ OCAMPOS
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Patent number: 10398336Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wires and a thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: GrantFiled: December 22, 2017Date of Patent: September 3, 2019Assignee: Biosense Webster (Israel) Ltd.Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Publication number: 20180132740Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wires and a thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: ApplicationFiled: December 22, 2017Publication date: May 17, 2018Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Patent number: 9848794Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wires and a thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: GrantFiled: October 21, 2016Date of Patent: December 26, 2017Assignee: Biosense Webster (Israel) Ltd.Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Publication number: 20170035502Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wires and a thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: ApplicationFiled: October 21, 2016Publication date: February 9, 2017Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Patent number: 9474458Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wires and a thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: GrantFiled: June 1, 2015Date of Patent: October 25, 2016Assignee: Biosense Webser (Israel) Ltd.Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Publication number: 20150257666Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wires and a thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: ApplicationFiled: June 1, 2015Publication date: September 17, 2015Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Patent number: 9044156Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The support member is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the support member to accommodate components such as irrigation tubing, lead wire and thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: GrantFiled: December 28, 2012Date of Patent: June 2, 2015Assignee: Biosense Webster (Israel) Ltd.Inventors: Jeffrey Clark, Maria Duarte, Erica Lovejoy
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Patent number: 8962882Abstract: This invention concerns a process for obtaining lactic acid in a single stage by direct oxidation in an aqueous medium of 1,2-propanediol in the presence of a mixture of heterogeneous catalysts, in conditions of low temperature and low pressure. The reaction takes place in the presence of oxygen and a mixture of heterogeneous catalysts, consisting of a first catalyst of noble metal supported in metallic oxide, and a second basic solid catalyst. The mixture of catalysts is easily recovered by filtration at the end of the process, to be reused. The lactic acid is obtained directly, with selectivity between 50% and 97%.Type: GrantFiled: November 22, 2013Date of Patent: February 24, 2015Assignees: Petroleo Brasileiro S.A.—Petrobras, Int—Instituto Nacional de TecnologiaInventors: Marco André Fraga, Tatiana Vieira Galvão, Simone Maria De Rezende, Andrea Maria Duarte De Farias, Alexandre Barros Gaspar, Marlito Gomes Junior, Carlos René Klotz Rabello, Bernardo Galvão Siqueira, Raphael Bezerra De Menezes
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Publication number: 20140187893Abstract: A catheter includes a tip electrode with a shell and a support member to provide a plenum chamber. The plug is formed with a U-shaped passage for a safety line to wrap around and secure the support member (with the shell affixed thereto) to the catheter. Additional passages are formed in the plug to accommodate components such as irrigation tubing, lead wire and thermocouple wire pair. A method of manufacture provides distal installation and/or anchoring of the safety line, lead wire and thermocouple wire pair in the support member prior to sealing the support member and mounting the shell.Type: ApplicationFiled: December 28, 2012Publication date: July 3, 2014Applicant: BIOSENSE WEBSTER (ISRAEL), LTD.Inventors: Jeffrey L. Clark, Maria Duarte, Erica Lovejoy
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Publication number: 20140155651Abstract: This invention concerns a process for obtaining lactic acid in a single stage by direct oxidation in an aqueous medium of 1,2-propanediol in the presence of a mixture of heterogeneous catalysts, in conditions of low temperature and low pressure. The reaction takes place in the presence of oxygen and a mixture of heterogeneous catalysts, consisting of a first catalyst of noble metal supported in metallic oxide, and a second basic solid catalyst. The mixture of catalysts is easily recovered by filtration at the end of the process, to be reused. The lactic acid is obtained directly, with selectivity between 50% and 97%.Type: ApplicationFiled: November 22, 2013Publication date: June 5, 2014Applicants: INT - INSTITUTO NACIONAL DE TECNOLOGIA, PETRÓLEO BRASILEIRO S.A. - PETROBRASInventors: Marco André FRAGA, Tatiana Vieira GALVÃO, Simone Maria DE REZENDE, Andrea Maria Duarte DE FARIAS, Alexandre Barros GASPAR, Marlito GOMES JUNIOR, Carlos Renê Klotz RABELLO, Bernardo Galvão SIQUEIRA, Raphael Bezerra DE MENEZES
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Publication number: 20140148616Abstract: Current industrial processes for the production of lactic acid are fermentative, using lactic bacteria which require large volumes and create large quantities of liquid residue which need to be treated. Chemical literature also describes the use of reaction systems with homogeneous catalysis, which also pose problems which in turn impact our costs, owing to the increased requirements in terms of the control of the process and the type of reactor necessary. Therefore, the process used thus far, carried out in hydrogenolysis, isomerisation and oxidation are defective, owing to the significant formation of sub-products, mainly pyruvic acid and acetic acid and the low yield of lactic acid. Lactic acid can also be obtained by the chemical transformation of other sources other than starch, but which are also renewable. The present invention provides a oxidative process for the production of lactic acid, in which the reaction with pure oxygen or oxygen mixed with air takes place below 100° C.Type: ApplicationFiled: August 18, 2011Publication date: May 29, 2014Applicants: INSTITUTO NACIONAL DE TECNOLOGIA-INT, PETROLEO BRASILEIRO S.A. - PETROBRASInventors: Marco Andre Fraga, Elise Mota de Albuquerque, Robert Amaral Candido, Beta Cunha Olivier, Simone Carvalho Chiapetta, Andrea Maria Duarte de Farias, Alexandre Barros Gaspar, Marlito Gomes Junior, Carlos Rene Klotz Rabello, Bernardo Galvao Siqueira, Raphael Bezerra de Menezes
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Patent number: D768363Type: GrantFiled: June 25, 2015Date of Patent: October 11, 2016Assignee: ALPARGATAS S.A.Inventor: Ana Maria Duarte Angélico
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Patent number: D799173Type: GrantFiled: May 11, 2016Date of Patent: October 10, 2017Assignee: ALPARGATAS S.A.Inventor: Ana Maria Duarte Angelico