Patents by Inventor George Mitra
George Mitra 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: 20250340589Abstract: Disclosed here includes a method for purifying a biologic composition, comprising diafiltering the biologic composition into a composition comprising phosphate buffered saline (PBS) to obtain a purified composition. The method disclosed here can be particularly useful for removing one or more impurities from the biologic composition, such as bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (Bis-tris).Type: ApplicationFiled: July 14, 2025Publication date: November 6, 2025Applicants: United Therapeutics Corporation, The United States of America as Represented by the secretary, Department of Health and Human ServiceInventors: David Meh, Timothy Atolagbe, G. Mark Farquharson, Samir Shaban, Mary Koleck, George Mitra
-
Patent number: 12358946Abstract: Disclosed here includes a method for purifying a biologic composition, comprising diafiltering the biologic composition into a composition comprising phosphate buffered saline (PBS) to obtain a purified composition. The method disclosed here can be particularly useful for removing one or more impurities from the biologic composition, such as bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (Bis-tris).Type: GrantFiled: January 21, 2021Date of Patent: July 15, 2025Assignees: United Therapeutics Corporation, The United State of America, as Represented by the Secretary, Department of Health and Human ServicesInventors: David Meh, Timothy Atolagbe, G. Mark Farquharson, Samir Shaban, Mary Koleck, George Mitra
-
Publication number: 20210139535Abstract: Disclosed here includes a method for purifying a biologic composition, comprising diafiltering the biologic composition into a composition comprising phosphate buffered saline (PBS) to obtain a purified composition. The method disclosed here can be particularly useful for removing one or more impurities from the biologic composition, such as bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (Bis-tris).Type: ApplicationFiled: January 21, 2021Publication date: May 13, 2021Applicants: United Therapeutics Corporation, The United States of America as Represented by the Secretary, Department of Health & Human ServicesInventors: David Meh, Timothy Atolagbe, G. Mark Farquharson, Samir Shaban, Mary Koleck, George Mitra
-
Patent number: 10954492Abstract: Described are improved processes for production and purification of nucleic acid-containing compositions, such as non-naturally occurring viruses, for example, recombinant polioviruses that can be employed as oncolytic agents. Some of the described improved processes relate to improved processes for producing viral DNA template. Also described are improved processes for chromatography purification of nucleic acid-containing compositions, in which the nucleic acid is quantified in chromatography fractions using a rapid detection method of the one or more nucleic acid sequences of the nucleic acid-containing composition, such as detection by real time RT-qPCR. In addition, improved processes for production and purification of oncolytic poliovirus, such as PVS-RIPO, are described. Compositions generated using these methods are also provided.Type: GrantFiled: June 10, 2016Date of Patent: March 23, 2021Assignee: The United States of America, as represented by the Secretary, Department of Health and Human ServicesInventors: Trevor Lane Broadt, Samir Hussein Shaban, Yueqing Xie, Jianwei Sean Zhu, George Mitra
-
Patent number: 10906935Abstract: Disclosed here includes a method for purifying a biologic composition, comprising diafiltering the biologic composition into a composition comprising phosphate buffered saline (PBS) to obtain a purified composition. The method disclosed here can be particularly useful for removing one or more impurities from the biologic composition, such as bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (Bis-tris).Type: GrantFiled: January 14, 2016Date of Patent: February 2, 2021Assignees: United Therapeutics Corporation, The United States of America, as Represented by the Secretary, Department of Health and Human ServicesInventors: David Meh, Timothy Atolagbe, G. Mark Farquharson, Samir Shaban, Mary Koleck, George Mitra
-
Publication number: 20190330269Abstract: Disclosed here includes a method for purifying a biologic composition, comprising diafiltering the biologic composition into a composition comprising phosphate buffered saline (PBS) to obtain a purified composition. The method disclosed here can be particularly useful for removing one or more impurities from the biologic composition, such as bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (Bis-tris).Type: ApplicationFiled: June 20, 2019Publication date: October 31, 2019Inventors: Samir Hussein Shaban, Mary Paulette Koleck, David Alan Meh, Gerald Mark Farquharson, Timothy O. Atolagbe, George Mitra
-
Patent number: 10329323Abstract: Disclosed here includes a method for purifying a biologic composition, comprising diafiltering the biologic composition into a composition comprising phosphate buffered saline (PBS) to obtain a purified composition. The method disclosed here can be particularly useful for removing one or more impurities from the biologic composition, such as bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (Bis-tris).Type: GrantFiled: July 25, 2015Date of Patent: June 25, 2019Assignees: The United States of America, as represented by the Secretary, Department of Health & Human Services, United Therapeutics CorporationInventors: Samir H. Shaban, Mary P. Koleck, David A. Meh, Gerald M. Farquharson, Timothy O. Atolagbe, George Mitra
-
Publication number: 20180163182Abstract: Described are improved processes for production and purification of nucleic acid-containing compositions, such as non-naturally occurring viruses, for example, recombinant polioviruses that can be employed as oncolytic agents. Some of the described improved processes relate to improved processes for producing viral DNA template. Also described are improved processes for chromatography purification of nucleic acid-containing compositions, in which the nucleic acid is quantified in chromatography fractions using a rapid detection method of the one or more nucleic acid sequences of the nucleic acid-containing composition, such as detection by real time RT-qPCR. In addition, improved processes for production and purification of oncolytic poliovirus, such as PVS-RIPO, are described. Compositions generated using these methods are also provided.Type: ApplicationFiled: June 10, 2016Publication date: June 14, 2018Applicants: Human ServicesInventors: Trevor Lane Broadt, Samir Hussein Shaban, Yueqing Xie, Jianwei Sean Zhu, George Mitra
-
Publication number: 20160289268Abstract: Disclosed here includes a method for purifying a biologic composition, comprising diafiltering the biologic composition into a composition comprising phosphate buffered saline (PBS) to obtain a purified composition. The method disclosed here can be particularly useful for removing one or more impurities from the biologic composition, such as bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (Bis-tris).Type: ApplicationFiled: January 14, 2016Publication date: October 6, 2016Applicants: United Therapeutics Corporation, The U.S.A. as represented by the Secretary, Department of Health and Human ServicesInventors: David Meh, Timothy Atolagbe, G. Mark Farquharson, Samir Shaban, Mary Koleck, George Mitra
-
Publication number: 20160185841Abstract: Disclosed here includes a method for purifying a biologic composition, comprising diafiltering the biologic composition into a composition comprising phosphate buffered saline (PBS) to obtain a purified composition. The method disclosed here can be particularly useful for removing one or more impurities from the biologic composition, such as bis(2-hydroxyethyl)amino-tris(hydroxymethyl)methane (Bis-tris).Type: ApplicationFiled: July 25, 2015Publication date: June 30, 2016Inventors: Samir H. Shaban, Mary P. Koleck, David A. Meh, Gerald M. Farquharson, Timothy O. Atolagbe, George Mitra