Patents by Inventor Natarajan Raju
Natarajan Raju 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: 20240216900Abstract: Disclosed are perfluorinated SABRE catalysts comprising a d-block element and a perfluorinated ligand, wherein the perfluorinated ligand is of Formula (I): [Lm-(NHC)—(Y—Z)q] or a salt thereof. Also disclosed is a method of preparing a hyperpolarized substrate comprising a ½ spin nucleus or nuclei using the perfluorinated SABRE catalysts, and isolating the resulting hyperpolarized substrate for administration to an animal. Further disclosed is a method of imaging a tissue of an animal suspected of having a disease or condition.Type: ApplicationFiled: January 11, 2024Publication date: July 4, 2024Applicant: The U.S.A., as represented by the Secretary, Department of Health and Human ServicesInventors: Rolf E. Swenson, Jessica H. Ettedgui-Benjamini, Carolyn Woodroofe Hitko, Murali K. Cherukuri, Natarajan Raju
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Publication number: 20210079225Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: ApplicationFiled: November 2, 2020Publication date: March 18, 2021Applicant: Enzo Biochem, Inc.Inventors: Zaiguo Li, Praveen Pande, Natarajan Raju
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Patent number: 10865309Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: GrantFiled: October 6, 2018Date of Patent: December 15, 2020Assignee: Enzo Biochem, Inc.Inventors: Zaiguo Li, Praveen Pande, Natarajan Raju
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Patent number: 10683257Abstract: The invention provides methods for synthesizing the compound (2R,3S,4E)-N-methyl-5-(4?-pentylphenyl)-2-aminopent-4-ene-1,3-diol, also known as SK1-I, and intermediate compounds used in its synthesis.Type: GrantFiled: May 13, 2019Date of Patent: June 16, 2020Assignee: Enzo Biochem, Inc.Inventors: Zaiguo Li, Natarajan Raju, Praveen Pande
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Publication number: 20200131113Abstract: The invention provides methods for synthesizing the compound (2R,3S,4E)-N-methyl-5-(4?-pentylphenyl)-2-aminopent-4-ene-1,3-diol, also known as SK1-I, and intermediate compounds used in its synthesis.Type: ApplicationFiled: May 13, 2019Publication date: April 30, 2020Applicant: Enzo Biochem, Inc.Inventors: Zaiguo Li, Natarajan Raju, Praveen Pande
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Publication number: 20190256453Abstract: The invention provides methods for synthesizing the compound (2R,3S,4E)-N-methyl-5-(4?-pentylphenyl)-2-aminopent-4-ene-1,3-diol, also known as SK1-I, and intermediate compounds used in its synthesis.Type: ApplicationFiled: October 24, 2018Publication date: August 22, 2019Applicant: Enzo Biochem, Inc.Inventors: Zaiguo Li, Natarajan Raju, Praveen Pande
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Patent number: 10364211Abstract: The invention provides methods for synthesizing the compound (2R,3S,4E)-N-methyl-5-(4?-pentylphenyl)-2-aminopent-4-ene-1,3-diol, also known as SK1-I, and intermediate compounds used in its synthesis.Type: GrantFiled: October 24, 2018Date of Patent: July 30, 2019Assignee: Enzo Biochem, Inc.Inventors: Zaiguo Li, Natarajan Raju, Praveen Pande
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Publication number: 20190062560Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: ApplicationFiled: October 6, 2018Publication date: February 28, 2019Applicant: Enzo Biochem, Inc.Inventors: Zaiguo Li, Praveen Pande, Natarajan Raju
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Patent number: 10131789Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: GrantFiled: March 22, 2018Date of Patent: November 20, 2018Assignee: Enzo Biochem, Inc.Inventors: Zaiguo Li, Praveen Pande, Natarajan Raju
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Publication number: 20180215920Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: ApplicationFiled: March 22, 2018Publication date: August 2, 2018Applicant: ENZO BIOCHEM, INC.Inventors: ZAIGUO LI, PRAVEEN PANDE, NATARAJAN RAJU
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Patent number: 9957393Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: GrantFiled: March 30, 2015Date of Patent: May 1, 2018Assignee: Enzo Biochem, Inc.Inventors: Zaiguo Li, Praveen Pande, Natarajan Raju
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Patent number: 9951227Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: GrantFiled: September 7, 2017Date of Patent: April 24, 2018Assignee: Enzo Biochem, Inc.Inventors: Zaiguo Li, Praveen Pande, Natarajan Raju
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Publication number: 20170369954Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: ApplicationFiled: September 7, 2017Publication date: December 28, 2017Applicant: Enzo Biochem, Inc.Inventors: Zaiguo Li, Praveen Pande, Natarajan Raju
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Publication number: 20160289779Abstract: The present disclosure provides reactive quencher dyes that can be used in the detection and/or quantification of desirable target molecules, such as proteins, nucleic acids and various cellular organelles. These dyes are essentially non-fluorescent but are efficient quenchers of various fluorescent dyes. Also, provided are methods of using the dyes, bio-probes incorporating dyes and methods of using the bio-probes. The quencher dyes described herein are modified to provide beneficial properties.Type: ApplicationFiled: March 30, 2015Publication date: October 6, 2016Applicant: Enzo Biochem, Inc.Inventors: ZAIGUO LI, PRAVEEN PANDE, NATARAJAN RAJU
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Patent number: 8444954Abstract: New and improved compounds for use in diagnostic imaging or therapy having the formula M-N—O—P-G, wherein M is a metal chelator having the structure: wherein R1-R5 and FG are as defined herein (in the form complexed with a metal radionuclide or not), N—O—P is the linker containing at least one non-alpha amino acid with a cyclic group, at least one substituted bile acid or at least one non-alpha amino acid, and G is the GRP receptor targeting peptide. In the preferred embodiment, M is an Aazta metal chelator or a derivative thereof. Methods for imaging a patient and/or providing radiotherapy or phototherapy to a patient using the compounds of the invention are also provided. Methods and kits for preparing a diagnostic imaging agent from the compound is further provided. Methods and kits for preparing a radiotherapeutic agent are further provided.Type: GrantFiled: December 2, 2010Date of Patent: May 21, 2013Assignee: Bracco Imaging S.p.A.Inventors: Enrico Cappelletti, Luciano Lattuada, Karen E. Linder, Edmund Marinelli, Palaniappa Nanjappan, Adrian Nunn, Natarajan Raju, Kondareddiar Ramalingam, Rolf E. Swenson, Michael Tweedle
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Patent number: 8420050Abstract: Novel methods of treating prostate tumors or of delaying the progression of prostate tumors are also provided, including, methods of treating bone or soft tissue metastases of prostate cancer methods for treating hormone sensitive and hormone refractory prostate cancer, methods for delaying the progression of hormone sensitive prostate cancer, for facilitating combination therapy in patients with hormone sensitive prostate cancer and for decreasing aberrant vascular permeability in patients with hormone sensitive prostate cancer, said methods comprising the step of administering to a subject a dose comprising an amount of radioactively labeled L70, N-[4-[[[[[4,7,10-Tris(carboxymethyl)-1,4,7,10-tetraazacyclododec-1-yl]acetyl]amino]acetyl]amino]benzoyl]-L-glutaminyl-L-tryptophyl-L-alanyl-L-valyl-glycyl-L-histidyl-L-leucyl-L-methioninamide.Type: GrantFiled: June 11, 2008Date of Patent: April 16, 2013Assignee: Bracco Imaging S.p.A.Inventors: Enrico Cappelletti, Luciano Lattuada, Karen E. Linder, Edmund R. Marinelli, Palaniappa Nanjappan, Adrian D. Nunn, Natarajan Raju, Kondareddiar Ramalingam, Rolf E. Swenson, Michael F. Tweedle, Mary Ellen Maddalena
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Patent number: 8420053Abstract: Improved compounds for use in diagnostic imaging or therapy having the formula M-N-O-P-G, wherein M is an optical label or a metal chelator (in the form complexed with a metal radionuclide or not), N-O-P is the linker, and G is the GRP receptor targeting peptide. Methods for imaging a patient and/or providing radiotherapy or phototherapy to a patient using the compounds of the invention are also provided. Methods and kits for preparing a diagnostic imaging agent from the compound are further provided. Methods and kits for preparing a radiotherapeutic agent are further provided.Type: GrantFiled: August 31, 2009Date of Patent: April 16, 2013Assignee: Bracco Imaging S.p.A.Inventors: Enrico Cappelletti, Luciano Lattuada, Karen E. Linder, Edmund Marinelli, Palaniappa Nanjappan, Natarajan Raju, Kondareddiar Ramalingam, Rolf E. Swenson, Michael Tweedle
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Patent number: 8414864Abstract: New and improved compounds for use in radiodiagnostic imaging or radiotherapy having the formula M-N—O—P-G, wherein M is the metal chelator (in the form complexed with a metal radionuclide or not), N—O—P is the linker, and G is the GRP receptor targeting peptide. Methods for imaging a patient and/or providing radiotherapy to a patient using the compounds of the invention are also provided. A method for preparing a diagnostic imaging agent from the compound is further provided. A method for preparing a radiotherapeutic agent is further provided.Type: GrantFiled: August 25, 2006Date of Patent: April 9, 2013Assignee: Bracco Imaging S.p.A.Inventors: Enrico Cappelletti, Luciano Lattuada, Karen E. Linder, Edmund R. Marinelli, Palaniappa Nanjappan, Natarajan Raju, Rolf E. Swenson, Michael Tweedle
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Publication number: 20120315220Abstract: The present invention provides compounds for targeting endothelial cells, tumor cells or other cells that express the NP-1 receptor, compositions containing the same and methods for their use. Additionally, the present invention includes diagnostic, therapeutic and radiotherapeutic compositions useful for visualization, therapy or radiotherapy.Type: ApplicationFiled: April 12, 2012Publication date: December 13, 2012Applicant: Bracco Suisse S.A.Inventors: Mathew A. Von Wronski, Edmund R. Marinelli, Adrian D. Nunn, Radhakrishna Pillai, Kondareddiar Ramalingam, Michael F. Tweedle, Karen E. Linder, Palaniappa Nanjappan, Natarajan Raju
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Patent number: 8263739Abstract: The present invention provides compounds for targeting endothelial cells, tumor cells or other cells that express the NP-1 receptor, compositions containing the same and methods for their use. Additionally, the present invention includes diagnostic, therapeutic and radiotherapeutic compositions useful for visualization, therapy or radiotherapy.Type: GrantFiled: January 27, 2006Date of Patent: September 11, 2012Assignee: Bracco Suisse SAInventors: Mathew A. Von Wronski, Edmund R. Marinelli, Adrian Nunn, Radhakrishna Pillai, Kondareddiar Ramalingam, Michael F. Tweedle, Karen E. Linder, Palaniappa Nanjappan, Natarajan Raju