Patents by Inventor Philip R. DeShong
Philip R. DeShong 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: 20230081679Abstract: The present disclosure provides catanionic surfactant vesicles (SVs). The vesicles may be functionalized on their outer leaflet such that they may be biologically active. The vesicles may encapsulate (at least partially in the lumen and/or at least partially in the leaflet) one or more small molecules, one or more RNAs, one or more DNAs, and/or one or more proteins/peptides. Also provided are compositions comprising the vesicles (e.g., vaccine compositions comprising the vesicles) and methods of making and using the same.Type: ApplicationFiled: September 2, 2022Publication date: March 16, 2023Inventors: Philip R. DESHONG, David WATTS, Daniel C. STEIN, Paul PAUKSTELIS, Emily LUTERAN
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Patent number: 10711043Abstract: The disclosure relates to compositions, pharmaceutical compositions, vaccines, and methods of making and using the same. The compositions of the disclosure are useful to stimulate an antigen-specific immune response and, in some embodiments, a protective immune response in an animal after challenge to pathogens. The compositions of the disclosure are also useful for treatment and prevention of disease in a subject such as cancer.Type: GrantFiled: July 9, 2018Date of Patent: July 14, 2020Assignees: University of Maryland, College Park, University of Maryland, BaltimoreInventors: Philip R. DeShong, Lenea Stocker, Daniel C. Stein, Stefanie N. Vogel, Katharina Richard
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Publication number: 20190016761Abstract: The disclosure relates to compositions, pharmaceutical compositions, vaccines, and methods of making and using the same. The compositions of the disclosure are useful to stimulate an antigen-specific immune response and, in some embodiments, a protective immune response in an animal after challenge to pathogens. The compositions of the disclosure are also useful for treatment and prevention of disease in a subject such as cancer.Type: ApplicationFiled: July 9, 2018Publication date: January 17, 2019Inventors: Philip R. DeShong, Lenea Stocker, Daniel C. Stein, Stefanie N. Vogel, Katharina Richard
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Patent number: 10017545Abstract: The disclosure relates to compositions, pharmaceutical compositions, vaccines, and methods of making and using the same. The compositions of the disclosure are useful to stimulate an antigen-specific immune response and, in some embodiments, a protective immune response in an animal after challenge to pathogens. The compositions of the disclosure are also useful for treatment and prevention of disease in a subject such as cancer.Type: GrantFiled: June 3, 2014Date of Patent: July 10, 2018Assignees: University of Maryland, College Park, University of Maryland, BaltimoreInventors: Philip R. DeShong, Lenea Stocker, Daniel C. Stein, Stefanie N. Vogel, Katharina Richard
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Publication number: 20170209605Abstract: Carbohydrate functionalized catanionic vesicles that include a glycoconjugate and/or peptidoconjugate for vaccination or drug delivery, methods for forming these, and methods of using these.Type: ApplicationFiled: April 5, 2017Publication date: July 27, 2017Applicant: University of Maryland, College ParkInventors: Douglas S English, Philip R DeShong, Daniel C Stein, Sara Lioi, Ju-Hee Park, Emily J Danoff, Glen B Thomas
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Patent number: 9271936Abstract: A method for synthesizing a mesoporous silica nanoparticle, a mesoporous silica nanoparticle, and applications thereof are provided. The method includes fractionating a mesoporous silica nanoparticle suspension to produce size-fractionated mesoporous silica nanoparticle. The method further includes etching the size-fractionated mesoporous silica nanoparticle to produce synthesized mesoporous silica nanoparticle having a hollow, porous morphology configured to receive one of a therapeutic agent and an imaging material. The etching includes differential etching of silica from areas of low polymeric density within the mesoporous silica nanoparticle and re-depositing of the silica in areas of higher polymeric density existing near the surface of the mesoporous silica nanoparticle. A target material is loaded into the synthesized mesoporous silica nanoparticle and a controlled released of the target material is provided by decreasing the physiological pH of the surface of the mesoporous silica nanoparticle.Type: GrantFiled: March 6, 2009Date of Patent: March 1, 2016Assignee: UNIVERSITY OF MARYLANDInventors: Philip R. DeShong, Michael R. Zachariah, Peter DeMuth, Anand Prakash, Charles Luckett, Douglas Stephen English
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Publication number: 20140356415Abstract: The disclosure relates to compositions, pharmaceutical compositions, vaccines, and methods of making and using the same. The compositions of the disclosure are useful to stimulate an antigen-specific immune response and, in some embodiments, a protective immune response in an animal after challenge to pathogens. The compositions of the disclosure are also useful for treatment and prevention of disease in a subject such as cancer.Type: ApplicationFiled: June 3, 2014Publication date: December 4, 2014Applicants: University of Maryland, College Park, University of Maryland, BaltimoreInventors: Philip R. DeShong, Lenea Stocker, Daniel C. Stein, Stefanie N. Vogel, Katharina Richard
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Patent number: 8858883Abstract: A biosensor comprising an electrically conductive substrate coated with a modified chitosan biopolymer that has been electrodeposited on the substrate, wherein said modified chitosan biopolymer comprises at least one vesicle binding molecule. The biosensor is manufactured by a method where a modified chitosan biopolymer is electrodeposited on a substrate. The method is also used to manufacture a modified chitosan biopolymer film by electrodeposition of the chitosan on the substrate and later removing the film from the substrate after electrodeposition. The resulting film can be used in bandages to treat various types of wounds. The biosensor can also be used to detect various analytes in samples.Type: GrantFiled: December 2, 2011Date of Patent: October 14, 2014Assignees: University of Maryland, College Park, Wichita State UniversityInventors: Matthew Dowling, Srinivasa R. Raghavan, Neeraja Dashaputre, Douglas Stephen English, Vishal Javvaji, Gregory F. Payne, Philip R. DeShong
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Publication number: 20120252703Abstract: A biosensor comprising an electrically conductive substrate coated with a modified chitosan biopolymer that has been electrodeposited on the substrate, wherein said modified chitosan biopolymer comprises at least one vesicle binding molecule. The biosensor is manufactured by a method where a modified chitosan biopolymer is electrodeposited on a substrate. The method is also used to manufacture a modified chitosan biopolymer film by electrodeposition of the chitosan on the substrate and later removing the film from the substrate after electrodeposition. The resulting film can be used in bandages to treat various types of wounds. The biosensor can also be used to detect various analytes in samples.Type: ApplicationFiled: December 2, 2011Publication date: October 4, 2012Applicant: University of Maryland,College Park Office of Technology and CommercializationInventors: Matthew Dowling, Srinivasa R. Raghavan, Neeraja Dashaputre, Douglas Stephen English, Vishal Javvaji, Gregory F. Payne, Philip R. DeShong
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Publication number: 20110165067Abstract: Carbohydrate functionalized catanionic vesicles that include a glycoconjugate and/or peptidoconjugate for vaccination or drug delivery, methods for forming these, and methods of using these.Type: ApplicationFiled: August 18, 2008Publication date: July 7, 2011Applicant: University of Maryland Office of Technology CommercializationInventors: Douglas S. English, Philip R. DeShong, Daniel C. Stein, Sara Lioi, Ju-Hee Park, Emily J. Danoff, Glen B. Thomas
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Publication number: 20090311332Abstract: A method for synthesizing a mesoporous silica nanoparticle, a mesoporous silica nanoparticle, and applications thereof are provided. The method includes fractionating a mesoporous silica nanoparticle suspension to produce size-fractionated mesoporous silica nanoparticle. The method further includes etching the size-fractionated mesoporous silica nanoparticle to produce synthesized mesoporous silica nanoparticle having a hollow, porous morphology configured to receive one of a therapeutic agent and an imaging material. The etching includes differential etching of silica from areas of low polymeric density within the mesoporous silica nanoparticle and re-depositing of the silica in areas of higher polymeric density existing near the surface of the mesoporous silica nanoparticle. A target material is loaded into the synthesized mesoporous silica nanoparticle and a controlled released of the target material is provided by decreasing the physiological pH of the surface of the mesoporous silica nanoparticle.Type: ApplicationFiled: March 6, 2009Publication date: December 17, 2009Inventors: Philip R. DeShong, Michael R. Zachariah, Peter DeMuth, Anand Prakash, Charles Luckett, Douglas Stephen English
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Publication number: 20090075396Abstract: Methods for detecting a biological interaction comprising administering a substrate comprising a ligand attached to the substrate wherein the ligand binds to a receptor and wherein a signal is produced. Also disclosed is a biosensor comprising a substrate and a ligand wherein the ligand is attached to the surface of the substrate and wherein the ligand preferentially binds to a receptor.Type: ApplicationFiled: September 10, 2008Publication date: March 19, 2009Applicant: University of Maryland Office of Technology CommercializationInventors: Philip R. Deshong, Douglas S. English, Daniel C. Stein, Mridula Kadalbajoo, Fehmi Damkaci
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Publication number: 20080305157Abstract: Catanionic vesicles including solute ion, methods for forming these, and methods of using these.Type: ApplicationFiled: June 9, 2008Publication date: December 11, 2008Applicant: University of Maryland Office of Technology CommercializationInventors: Douglas S. English, Srinivasa Raghavan, Philip R. DeShong, Xiang Wang, Emily J. Danoff, Jaeho Lee
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Patent number: 5428116Abstract: New synthesis and analysis procedures for novel crosslinked polyamines and ampholytes. Polyamines are crosslinked with tartaric acid ester, malonic acid ester, or polycarboxylic acid esters of the citric acid cycle. The resulting crosslinked polyamine may further react with other compounds such as an .alpha.,.beta.-unsaturated or .alpha.-halo unsaturated carboxylic acids to prepare new ampholyte mixtures. The resulting novel ampholytes exhibit greater heterogeneity and complexity than presently prepared ampholytes, and can be used in analytical and preparative isoelectric focusing processes.Novel ampholyte analysis process entails analyzing chemical compounds, usually ampholytes, used in isoelectric focusing processes. The ampholyte is isoelectrically focused on an immobilized pH gradient, and then immersed in a picric acid solution to cause precipitation and visualization of amphoteric species.Type: GrantFiled: March 11, 1994Date of Patent: June 27, 1995Assignee: Board of Regents, The University of Texas SystemInventors: L. Scott Rodkey, Philip R. DeShong
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Patent number: 5322906Abstract: New synthesis and analysis procedures for novel crosslinked polyamines and ampholytes. Polyamines are crosslinked with tartaric acid ester, malonic acid ester, or polycarboxylic acid esters of the citric acid cycle. The resulting crosslinked polyamine may further react with other compounds such as an .alpha.,.beta.-unsaturated or .alpha.-halo unsaturated carboxylic acids to prepare new ampholyte mixtures. The resulting novel ampholytes exhibit greater heterogeneity and complexity than presently prepared ampholytes, and can be used in analytical and preparative isoelectric focusing processes.Novel ampholyte analysis process entails analyzing chemical compounds, usually ampholytes, used in isoelectric focusing processes. The ampholyte is isoelectrically focused on an immobilized pH gradient, and then immersed in a picric acid solution to cause precipitation and visualization of amphoteric species.Type: GrantFiled: February 27, 1991Date of Patent: June 21, 1994Assignee: Board of Regents, The University of Texas SystemInventors: L. Scott Rodkey, Philip R. DeShong