Patents by Inventor Carlos Estevez
Carlos Estevez 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: 11905346Abstract: The present invention relates to a method for producing an ethylene-based copolymer, and more particularly, to a method for producing an ethylene-based copolymer capable of increasing process efficiency by preventing plugging and corrosion of a facility. The method for producing an ethylene-based copolymer includes a producing mode and a washing mode of which one is selectively performed. The producing mode includes: a) hyper-compressing primary compressed ethylene, and a mixture including a carboxylic acid-containing comonomer and a polar solvent to produce a compressed material; b) reacting the compressed material to produce a reaction product including an ethylene-based copolymer; and c) separating and recovering unreacted residues from the reaction product and introducing the unreacted residues into the mixture of step a). The washing mode includes: re-supplying the compressed material produced in step a) to step a) as a mixture, without performing step b).Type: GrantFiled: September 24, 2021Date of Patent: February 20, 2024Assignees: SK Innovation Co., Ltd., SK Geo Centric Co., Ltd.Inventors: Byoung Kyu Kwak, Sun Joo Kim, Hong Chan Kim, Kyung Jin Ma, Doh Yeon Park, Jae Eun Lee, Ho Seong Lee, Juan Carlos Estevez Videira, Manuel David Recasens Alvaro, In Su Lee, Wan Ju Jeong
-
Publication number: 20220098340Abstract: The present invention relates to a method for producing an ethylene-based copolymer, and more particularly, to a method for producing an ethylene-based copolymer capable of increasing process efficiency by preventing plugging and corrosion of a facility. The method for producing an ethylene-based copolymer includes a producing mode and a washing mode of which one is selectively performed. The producing mode includes: a) hyper-compressing primary compressed ethylene, and a mixture including a carboxylic acid-containing comonomer and a polar solvent to produce a compressed material; b) reacting the compressed material to produce a reaction product including an ethylene-based copolymer; and c) separating and recovering unreacted residues from the reaction product and introducing the unreacted residues into the mixture of step a). The washing mode includes: re-supplying the compressed material produced in step a) to step a) as a mixture, without performing step b).Type: ApplicationFiled: September 24, 2021Publication date: March 31, 2022Inventors: Byoung Kyu Kwak, Sun Joo Kim, Hong Chan Kim, Kyung Jin Ma, Doh Yeon Park, Jae Eun Lee, Ho Seong Lee, Juan Carlos Estevez Videira, Manuel David Recasens Alvaro, In Su Lee, Wan Ju Jeong
-
Patent number: 8759034Abstract: A recombinant expression vector comprising: a) the sequence encoding a purine nucleoside phosphorylase (PNPase, E. C. 2.4.2.1), b) the sequence encoding a uridine phosphorylase (UPase, E. C. 2.4.2.3), c) or both; each of the sequences operably linked to one or more control sequences that direct the production of said phosphorylases in a suitable expression host; said sequences originating from the Archaea Thermoprotei class, characterized in that the PNPase is from Sulfolobus solfataricus (SEQ ID NO. 7) and the UPase is from Aeropyrum pernix (SEQ ID NO. 8). In addition, the present invention relates to A transglycosylation method between a sugar-donating nucleoside and an acceptor base in the presence of phosphate ions, characterized in that said method comprises the use of a uridine phosphorylase (UPase) of Aeropyrum pernix (NC_000854.2), a purine nucleoside phosphorylase (PNpase) of Sulfolobus solfataricus (NC_002754.1), or a combination thereof.Type: GrantFiled: July 22, 2013Date of Patent: June 24, 2014Assignee: Plasmia Biotech, S.L.Inventors: Rafael Montilla Arevalo, Victor Manuel DeronceléThomas, Cristina López Gómez, Marta Pascual Gilabert, Carlos Estevez Company, Josep Castells Boliart
-
Publication number: 20130337547Abstract: A recombinant expression vector comprising: a) the sequence encoding a purine nucleoside phosphorylase (PNPase, E. C. 2.4.2.1), b) the sequence encoding a uridine phosphorylase (UPase, E. C. 2.4.2.3), c) or both; each of the sequences operably linked to one or more control sequences that direct the production of said phosphorylases in a suitable expression host; said sequences originating from the Archaea Thermoprotei class, characterized in that the PNPase is from Sulfolobus solfataricus (SEQ ID NO. 7) and the UPase is from Aeropyrum pernix (SEQ ID NO. 8). In addition, the present invention relates to A transglycosylation method between a sugar-donating nucleoside and an acceptor base in the presence of phosphate ions, characterised in that said method comprises the use of a uridine phosphorylase (UPase) of Aeropyrum pernix (NC_000854.2), a purine nucleoside phosphorylase (PNpase) of Sulfolobus solfataricus (NC_002754.1), or a combination thereof.Type: ApplicationFiled: July 22, 2013Publication date: December 19, 2013Inventors: Rafael Montilla Arevalo, Victor Manuel Deroncelé Thomas, Cristina López Gómez, Marta Pascual Gilabert, Carlos Estevez Company, Josep Castells Boliart
-
Patent number: 8512997Abstract: The present invention relates to a recombinant expression vector comprising: a) the sequence encoding a purine nucleoside phosphorylase (PNPase, E. C. 2.4.2.1), b) the sequence encoding a uridine phosphorylase (UPase, E. C. 2.4.2.3), c) or both; each of the sequences operably linked to one or more control sequences that direct the production of said phosphorylases in a suitable expression host; said sequences originating from the Archaea Thermoprotei class, characterized in that the PNPase is from Sulfolobus solfataricus (SEQ ID NO. 7) and the UPase is from Aeropyrum pernix (SEQ ID NO. 8). In addition, the present invention relates to A transglycosylation method between a sugar-donating nucleoside and an acceptor base in the presence of phosphate ions, characterised in that said method comprises the use of a uridine phosphorylase (UPase) of Aeropyrum pernix (NC_000854.2), a purine nucleoside phosphorylase (PN-Pase) of Sulfolobus solfataricus (NC_002754.1), or a combination thereof.Type: GrantFiled: December 22, 2010Date of Patent: August 20, 2013Assignee: Plasmia Biotech, S.L.Inventors: Rafael Montilla Arevalo, Víctor Manuel Deroncelé Thomas, Cristina López Gómez, Marta Pascual Gilabert, Carlos Estévez Company, Josep Castells Boliart
-
Publication number: 20120264175Abstract: The present invention relates to a recombinant expression vector comprising: a) the sequence encoding a purine nucleoside phosphorylase (PNPase, E. C. 2.4.2.1), b) the sequence encoding a uridine phosphorylase (UPase, E. C. 2.4.2.3), c) or both; each of the sequences operably linked to one or more control sequences that direct the production of said phosphorylases in a suitable expression host; said sequences originating from the Archaea Thermoprotei class, characterized in that the PNPase is from Sulfolobus solfataricus (SEQ ID NO. 7) and the UPase is from Aeropyrum pernix (SEQ ID NO. 8). In addition, the present invention relates to A transglycosylation method between a sugar-donating nucleoside and an acceptor base in the presence of phosphate ions, characterised in that said method comprises the use of a uridine phosphorylase (UPase) of Aeropyrum pernix (NC_000854.2), a purine nucleoside phosphorylase (PN-Pase) of Sulfolobus solfataricus (NC_002754.1), or a combination thereof.Type: ApplicationFiled: December 22, 2010Publication date: October 18, 2012Inventors: Rafael Montilla Arevalo, Víctor Manuel Deroncelé, Cristina López Gómez, Marta Pascual Gilabert, Carlos Estévez Company, Josep Castells Boliart
-
Publication number: 20090258035Abstract: The present invention relates to poultry vaccines for prevention of Newcastle disease.Type: ApplicationFiled: March 20, 2009Publication date: October 15, 2009Applicant: The United States of America, as represented by the Secretary of AgricultureInventors: Qingzhong Yu, Carlos Estevez, Daniel J. King, David L. Suarez, Patti J. Miller
-
Publication number: 20070062692Abstract: A wellbore communication system for a wellsite having a downhole tool deployed from a rig into a wellbore penetrating a subsurface formation is provided. The system includes at least one wellsite sensor adapted to collect wellsite data, at least one mobile communication module locatable at various positions about the wellsite and a surface unit operatively connected to the at least one communication module. The communication module includes a housing, at least one communication interface adapted to receive signals from the at least one wellsite sensor, at least one signal-conditioning module positioned in the housing, a power supply and a connector adapted to receive a communication link to the surface unit.Type: ApplicationFiled: September 19, 2005Publication date: March 22, 2007Inventors: Carlos Estevez, Christopher Reed, Remi Hutin