Patents by Inventor Reyna REYES MARTINEZ

Reyna REYES MARTINEZ 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).

  • Solid forms of desvenlafaxine
    Patent number: 10207982
    Abstract: The present invention refers to new amorphous and crystalline solid forms of desvenlafaxine, also known as O-desmethylvenlafaxine or desmethylvenlafaxine, and to its salts, solvates, hydrates and polymorphs thereof, as well as to their use in the manufacture of a pharmaceutical composition useful in the treatment of depression and/or as a selective serotonin and norepinephrine reuptake inhibitor and also in menopause-associated vasomotor disorders.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: February 19, 2019
    Assignee: Alparis, S.A. DE C.V.
    Inventors: Jorge Guillermo Domínguez Chávez, Karina Mondragón Vásquez, Hugo Morales Rojas, Dea Herrera Ruiz, Herbert Höpfl, Reyna Reyes Martínez, Javier Hernández Illescas, Juan Pablo Senosiain Peláez
  • Block copolymers, synthesis and application as dehydrating and desalting of heavy crudes
    Patent number: 10167388
    Abstract: The present invention is related to formulations consisting of block copolymers ?,?-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers ?,?-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, that are effective in the dewatering and desalting crude whose specific gravities are within the range of 14 to 23°API.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: January 1, 2019
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Eugenio Alejandro Flores Oropeza, Cesar Andres Flores Sandoval, Reyna Reyes Martinez, Jose Gonzalo Hernandez Cortez, Alfonso Lopez Ortega, Laura Veronica Castro Sotelo, Fernando Alvarez Ramirez, Arquimedes Estrada Martinez, Flavio Salvador Vazquez Moreno
  • Scale-up process of bifunctionalized triblock copolymers with secondary and tertiary amines, with application in dewatering and desalting of heavy crude oils
    Patent number: 10125226
    Abstract: A chemical synthesis process is provided for the functionalization of monodispersed triblock copolymer (POEw-POPy-POEw) with secondary or tertiary amines at a semi-industrial level in glass reactors having a capacity between 1 L and 100 L. The process includes two stages where the first stage uses an alkylsulfonyl or arylsulfonyl chloride to obtain better leaving groups, and the second stage is the nucleophilic substitution with secondary or tertiary amines, to obtain the bifunctionalized triblock copolymers. The main advantage for this process is to reduce the quantity of unitary process done in each stage, the optimization of reaction times, and the stoichiometric relationships.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: November 13, 2018
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Cesar Andres Flores Sandoval, Eugenio Alejandro Flores Oropeza, Alfonso Lopez Ortega, Jose Gonzalo Hernandez Cortez, Aristeo Estrada Buendia, Laura Veronica Castro Sotelo, Reyna Reyes Martinez, Fernando Alvarez Ramirez, Arquimedes Estrada Martinez, Flavio Salvador Vazquez Moreno
  • Dehydrating and desalting compositions of crude oils, using triblock copolymers ?, ?-bifunctionalized with amines
    Patent number: 10047302
    Abstract: Compositions consisting of block copolymers ?,?-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers ?,?-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, are provided that are effective in the dewatering and desalting crude oils whose specific gravities are within the range of 14 to 20° API. A method of dewatering and desalting heavy crude oil adds a mixture of the copolymer bifunctionalized with an aliphatic or aromatic secondary amine and a copolymer bifunctionalized with an aliphatic or aromatic tertiary amine.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: August 14, 2018
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Eugenio Alejandro Flores Oropeza, Cesar Andres Flores Sandoval, Reyna Reyes Martinez, Jose Gonzalo Hernandez Cortez, Alfonso Lopez Ortega, Laura Veronica Castro Sotelo, Fernando Alvarez Ramirez, Arquimedes Estrada Martinez, Flavio Salvador Vazquez Moreno
  • SOLID FORMS OF DESVENLAFAXINE
    Publication number: 20180002273
    Abstract: The present invention refers to new amorphous and crystalline solid forms of desvenlafaxine, also known as O-desmethylvenlafaxine or desmethylvenlafaxine, and to its salts, solvates, hydrates and polymorphs thereof, as well as to their use in the manufacture of a pharmaceutical composition useful in the treatment of depression and/or as a selective serotonin and norepinephrine reuptake inhibitor and also in menopause-associated vasomotor disorders.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 4, 2018
    Inventors: Jorge Guillermo DOMÍNGUEZ CHÁVEZ, Karina MONDRAGÓN VÁSQUEZ, Hugo MORALES ROJAS, Dea HERRERA RUIZ, Herbert HÖPFL, Reyna REYES MARTÍNEZ, Javier HERNÁNDEZ ILLESCAS, Juan Pablo SENOSIAIN PELÁEZ
  • BLOCK COPOLYMERS, SYNTHESIS AND APPLICATION AS DEHYDRATING AND DESALTING OF HEAVY CRUDES
    Publication number: 20170327686
    Abstract: The present invention is related to formulations consisting of block copolymers ?,?-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers ?,?-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, that are effective in the dewatering and desalting crude whose specific gravities are within the range of 14 to 23°API.
    Type: Application
    Filed: August 3, 2017
    Publication date: November 16, 2017
    Inventors: Eugenio Alejandro FLORES OROPEZA, Cesar Andres FLORES SANDOVAL, Reyna REYES MARTINEZ, Jose Gonzalo HERNANDEZ CORTEZ, Alfonso LOPEZ ORTEGA, Laura Veronica CASTRO SOTELO, Fernando ALVAREZ RAMIREZ, Arquimedes ESTRADA MARTINEZ, Flavio Salvador VAZQUEZ MORENO
  • DEHYDRATING AND DESALTING COMPOSITIONS OF CRUDE OILS, USING TRIBLOCK COPOLYMERS ALPHA,OMEGA-BIFUNCTIONALIZED WITH AMINES
    Publication number: 20170313949
    Abstract: Compositions consisting of block copolymers ?,?-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers ?,?-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, are provided that are effective in the dewatering and desalting crude oils whose specific gravities are within the range of 14 to 20° API. A method of dewatering and desalting heavy crude oil adds a mixture of the copolymer bifunctionalized with an aliphatic or aromatic secondary amine and a copolymer bifunctionalized with an aliphatic or aromatic tertiary amine.
    Type: Application
    Filed: July 14, 2017
    Publication date: November 2, 2017
    Inventors: Eugenio Alejandro FLORES OROPEZA, Cesar Andres FLORES SANDOVAL, Reyna REYES MARTINEZ, Jose Gonzalo HERNANDEZ CORTEZ, Alfonso LOPEZ ORTEGA, Laura Veronica CASTRO SOTELO, Fernando ALVAREZ RAMIREZ, Arquimedes ESTRADA MARTINEZ, Flavio Salvador VAZQUEZ MORENO
  • Block copolymers, synthesis and application as dehydrating and desalting of heavy crudes
    Patent number: 9752084
    Abstract: The present invention is related to formulations consisting by block copolymers ?,?-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers ?,?-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, that are effective in the dewatering and desalting crude whose specific gravities are within the range of 14 to 23° API.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: September 5, 2017
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Eugenio Alejandro Flores Oropeza, Cesar Andres Flores Sandoval, Reyna Reyes Martinez, Jose Gonzalo Hernandez Cortez, Alfonso Lopez Ortega, Laura Veronica Castro Sotelo, Fernando Alvarez Ramirez, Arquimedes Estrada Martinez, Flavio Salvador Vazquez Moreno
  • Dehydrating and desalting compositions of crude oils, using triblock copolymers ?,?-bifunctionalized with amines
    Patent number: 9745521
    Abstract: Compositions consisting of block copolymers ?,?-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers ?,?-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, are provided that are effective in the dewatering and desalting crude oils whose specific gravities are within the range of 14 to 20° API. A method of dewatering and desalting heavy crude oil adds a mixture of the copolymer bifunctionalized with an aliphatic or aromatic secondary amine and a copolymer bifunctionalized with an aliphatic or aromatic tertiary amine.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: August 29, 2017
    Assignee: INSTITUTO MEXICANO DEL PETROLEO
    Inventors: Eugenio Alejandro Flores Oropeza, Cesar Andres Flores Sandoval, Reyna Reyes Martinez, Jose Gonzalo Hernandez Cortez, Alfonso Lopez Ortega, Laura Veronica Castro Sotelo, Fernando Alvarez Ramirez, Arquimedes Estrada Martinez, Flavio Salvador Vazquez Moreno
  • SCALE-UP PROCESS OF BIFUNCTIONALIZED TRIBLOCK COPOLYMERS WITH SECONDARY AND TERTIARY AMINES, WITH APPLICATION IN DEWATERING AND DESALTING OF HEAVY CRUDE OILS
    Publication number: 20140364566
    Abstract: A chemical synthesis process is provided for the functionalization of monodispersed triblock copolymer (POEw-POPy-POEw) with secondary or tertiary amines at a semi-industrial level in glass reactors having a capacity between 1 L and 100 L. The process includes two stages where the first stage uses an alkylsulfonyl or arylsulfonyl chloride to obtain better leaving groups, and the second stage is the nucleophilic substitution with secondary or tertiary amines, to obtain the bifunctionalized triblock copolymers. The main advantage for this process is to reduce the quantity of unitary process done in each stage, the optimization of reaction times, and the stoichiometric relationships.
    Type: Application
    Filed: June 4, 2014
    Publication date: December 11, 2014
    Inventors: Cesar Andres FLORES SANDOVAL, Eugenio Alejandro FLORES OROPEZA, Alfonso LOPEZ ORTEGA, Jose Gonzalo HERNANDEZ CORTEZ, Aristeo ESTRADA BUENDIA, Laura Veronica CASTRO SOTELO, Reyna REYES MARTINEZ, Fernando ALVAREZ RAMIREZ, Arquimedes ESTRADA MARTINEZ, Flavio Salvador VAZQUEZ MORENO
  • BLOCK COPOLYMERS, SYNTHESIS AND APPLICATION AS DEHYDRATING AND DESALTING OF HEAVY CRUDES
    Publication number: 20140238900
    Abstract: The present invention is related to formulations consisting by block copolymers ?,?-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers ?,?-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, that are effective in the dewatering and desalting crude whose specific gravities are within the range of 14 to 23° API.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Inventors: Eugenio Alejandro FLORES OROPEZA, Cesar Andres FLORES SANDOVAL, Reyna REYES MARTINEZ, Jose Gonzalo HERNANDEZ CORTEZ, Alfonso LOPEZ ORTEGA, Laura Veronica CASTRO SOTELO, Fernando ALVAREZ RAMIREZ, Arquimedes ESTRADA MARTINEZ, Flavio Salvador VAZQUEZ MORENO
  • DEHYDRATING AND DESALTING COMPOSITIONS OF CRUDE OILS, USING TRIBLOCK COPOLYMERS ALPHA,OMEGA-BIFUNCTIONALIZED WITH AMINES
    Publication number: 20140238901
    Abstract: Compositions consisting of block copolymers ?,?-di-aryl or alkyl sulfonates of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w of bis-ammonium and block copolymers ?,?-di-amine of poly(ethylene oxide)w-poly(propylene oxide)-poly(ethylene oxide)w, are provided that are effective in the dewatering and desalting crude oils whose specific gravities are within the range of 14 to 20° API. A method of dewatering and desalting heavy crude oil adds a mixture of the copolymer bifunctionalized with an aliphatic or aromatic secondary amine and a copolymer bifunctionalized with an aliphatic or aromatic tertiary amine.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 28, 2014
    Inventors: Eugenio Alejandro FLORES OROPEZA, Cesar Andres FLORES SANDOVAL, Reyna REYES MARTINEZ, Jose Gonzalo HERNANDEZ CORTEZ, Alfonso LOPEZ ORTEGA, Laura Veronica CASTRO SOTELO, Fernando ALVAREZ RAMIREZ, Arquimedes ESTRADA MARTINEZ, Flavio Salvador VAZQUEZ MORENO