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).

  • Publication number: 20230081679
    Abstract: 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: Application
    Filed: September 2, 2022
    Publication date: March 16, 2023
    Inventors: Philip R. DESHONG, David WATTS, Daniel C. STEIN, Paul PAUKSTELIS, Emily LUTERAN
  • Patent number: 10711043
    Abstract: 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: Grant
    Filed: July 9, 2018
    Date of Patent: July 14, 2020
    Assignees: University of Maryland, College Park, University of Maryland, Baltimore
    Inventors: Philip R. DeShong, Lenea Stocker, Daniel C. Stein, Stefanie N. Vogel, Katharina Richard
  • Publication number: 20190016761
    Abstract: 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: Application
    Filed: July 9, 2018
    Publication date: January 17, 2019
    Inventors: Philip R. DeShong, Lenea Stocker, Daniel C. Stein, Stefanie N. Vogel, Katharina Richard
  • Patent number: 10017545
    Abstract: 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: Grant
    Filed: June 3, 2014
    Date of Patent: July 10, 2018
    Assignees: University of Maryland, College Park, University of Maryland, Baltimore
    Inventors: Philip R. DeShong, Lenea Stocker, Daniel C. Stein, Stefanie N. Vogel, Katharina Richard
  • Publication number: 20170209605
    Abstract: 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: Application
    Filed: April 5, 2017
    Publication date: July 27, 2017
    Applicant: University of Maryland, College Park
    Inventors: Douglas S English, Philip R DeShong, Daniel C Stein, Sara Lioi, Ju-Hee Park, Emily J Danoff, Glen B Thomas
  • Patent number: 9271936
    Abstract: 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: Grant
    Filed: March 6, 2009
    Date of Patent: March 1, 2016
    Assignee: UNIVERSITY OF MARYLAND
    Inventors: Philip R. DeShong, Michael R. Zachariah, Peter DeMuth, Anand Prakash, Charles Luckett, Douglas Stephen English
  • Publication number: 20140356415
    Abstract: 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: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Applicants: University of Maryland, College Park, University of Maryland, Baltimore
    Inventors: Philip R. DeShong, Lenea Stocker, Daniel C. Stein, Stefanie N. Vogel, Katharina Richard
  • Patent number: 8858883
    Abstract: 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: Grant
    Filed: December 2, 2011
    Date of Patent: October 14, 2014
    Assignees: University of Maryland, College Park, Wichita State University
    Inventors: Matthew Dowling, Srinivasa R. Raghavan, Neeraja Dashaputre, Douglas Stephen English, Vishal Javvaji, Gregory F. Payne, Philip R. DeShong
  • Publication number: 20120252703
    Abstract: 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: Application
    Filed: December 2, 2011
    Publication date: October 4, 2012
    Applicant: University of Maryland,College Park Office of Technology and Commercialization
    Inventors: Matthew Dowling, Srinivasa R. Raghavan, Neeraja Dashaputre, Douglas Stephen English, Vishal Javvaji, Gregory F. Payne, Philip R. DeShong
  • Publication number: 20110165067
    Abstract: 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: Application
    Filed: August 18, 2008
    Publication date: July 7, 2011
    Applicant: University of Maryland Office of Technology Commercialization
    Inventors: Douglas S. English, Philip R. DeShong, Daniel C. Stein, Sara Lioi, Ju-Hee Park, Emily J. Danoff, Glen B. Thomas
  • Publication number: 20090311332
    Abstract: 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: Application
    Filed: March 6, 2009
    Publication date: December 17, 2009
    Inventors: Philip R. DeShong, Michael R. Zachariah, Peter DeMuth, Anand Prakash, Charles Luckett, Douglas Stephen English
  • Publication number: 20090075396
    Abstract: 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: Application
    Filed: September 10, 2008
    Publication date: March 19, 2009
    Applicant: University of Maryland Office of Technology Commercialization
    Inventors: Philip R. Deshong, Douglas S. English, Daniel C. Stein, Mridula Kadalbajoo, Fehmi Damkaci
  • Publication number: 20080305157
    Abstract: Catanionic vesicles including solute ion, methods for forming these, and methods of using these.
    Type: Application
    Filed: June 9, 2008
    Publication date: December 11, 2008
    Applicant: University of Maryland Office of Technology Commercialization
    Inventors: Douglas S. English, Srinivasa Raghavan, Philip R. DeShong, Xiang Wang, Emily J. Danoff, Jaeho Lee
  • Patent number: 5428116
    Abstract: 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: Grant
    Filed: March 11, 1994
    Date of Patent: June 27, 1995
    Assignee: Board of Regents, The University of Texas System
    Inventors: L. Scott Rodkey, Philip R. DeShong
  • Patent number: 5322906
    Abstract: 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: Grant
    Filed: February 27, 1991
    Date of Patent: June 21, 1994
    Assignee: Board of Regents, The University of Texas System
    Inventors: L. Scott Rodkey, Philip R. DeShong