Patents by Inventor Delai Chen

Delai Chen 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: 20180353643
    Abstract: Biomedical devices for implantation with decreased pericapsular fibrotic overgrowth are disclosed. The device includes biocompatible materials and has specific characteristics that allow the device to elicit less of a fibrotic reaction after implantation than the same device lacking one or more of these characteristic that are present on the device. Biocompatible hydrogel capsules encapsulating mammalian cells having a diameter of greater than 1 mm, and optionally a cell free core, are disclosed which have reduced fibrotic overgrowth after implantation in a subject. Methods of treating a disease in a subject are also disclosed that involve administering a therapeutically effective amount of the disclosed encapsulated cells to the subject.
    Type: Application
    Filed: May 17, 2016
    Publication date: December 13, 2018
    Inventors: Minglin Ma, Daniel G. Anderson, Robert S. Langer, Omid Veiseh, Arturo Jose Vegas, Joshua Charles Doloff, Delai Chen, Christian J. Kastrup
  • Publication number: 20180290965
    Abstract: This invention provides for a compound of formula (I): or a pharmaceutically acceptable salt thereof, wherein R1-R4, L1, n and p are defined herein. The compounds of formula (X) and pharmaceutically acceptable salts thereof are cationic lipids useful in the delivery of biologically active agents to cells and tissues.
    Type: Application
    Filed: June 20, 2018
    Publication date: October 11, 2018
    Inventors: Luis Brito, Delai Chen, Gabriel Grant Gamber, Andrew Geall, Kevin Love, Thomas Zabawa, Frederic Zecri
  • Patent number: 10086013
    Abstract: Described herein are compounds and compositions characterized, in certain embodiments, by conjugation of various groups, such as lipophilic groups, to an amino or amide group of an amino acid, a linear or cyclic peptide, a linear or cyclic polypeptide, or structural isomer thereof, to provide compounds of the present invention, collectively referred to herein as “APPLs”. Such APPLs are deemed useful for a variety of applications, such as, for example, improved nucleotide delivery. Exemplary APPLs include, but are not limited to, compounds of Formula (I), (II), (III), (IV), (V), and (VI), and salts thereof, as described herein: wherein m, n, p, R?, R1, R2, R3, R4, R5, R8, Z, W, Y, and Z are as defined herein.
    Type: Grant
    Filed: November 1, 2016
    Date of Patent: October 2, 2018
    Assignee: Massachusetts Institute of Technology
    Inventors: Yizhou Dong, Kevin Thomas Love, Robert S. Langer, Daniel Griffith Anderson, Delai Chen, Yi Chen, Arturo Jose Vegas, Akinleye C. Alabi, Yunlong Zhang
  • Patent number: 10059655
    Abstract: This invention provides for a compound of formula (I): or a pharmaceutically acceptable salt thereof, wherein R1-R4, n and p are defined herein. The compounds of formula (I) and pharmaceutically acceptable salts thereof are cationic lipids useful in the delivery of biologically active agents to cells and tissues.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: August 28, 2018
    Assignee: Novartis AG
    Inventors: Luis Brito, Delai Chen, Gabriel Grant Gamber, Andrew Geall, Kevin Love, Thomas Zabawa, Frederic Zecri
  • Publication number: 20180036333
    Abstract: Described herein are compounds and compositions characterized, in certain embodiments, by conjugation of various groups, such as lipophilic groups, to an amino or amide group of an amino acid, a linear or cyclic peptide, a linear or cyclic polypeptide, or structural isomer thereof, to provide compounds of the present invention, collectively referred to herein as “APPLs”. Such APPLs are deemed useful for a variety of applications, such as, for example, improved nucleotide delivery. Exemplary APPLs include, but are not limited to, compounds of Formula (I), (II), (III), (IV), (V), and (VI), and salts thereof, as described herein: wherein m, n, p, R?, R1, R2, R3, R4, R5, R8, Z, W, Y, and Z are as defined herein.
    Type: Application
    Filed: November 1, 2016
    Publication date: February 8, 2018
    Applicant: Massachusetts Institute of Technology
    Inventors: Yizhou Dong, Kevin Thomas Love, Robert S. Langer, Daniel Griffith Anderson, Delai Chen, Yi Chen, Arturo Jose Vegas, Akinleye C. Alabi, Yunlong Zhang
  • Publication number: 20170165290
    Abstract: Described herein are compounds and compositions characterized, in certain embodiments, by conjugation of various groups, such as lipophilic groups, to an amino or amide group of an amino acid, a linear or cyclic peptide, a linear or cyclic polypeptide, or structural isomer thereof, to provide compounds of the present invention, collectively referred to herein as “APPLs”. Such APPLs are deemed useful for a variety of applications, such as, for example, improved nucleotide delivery. Exemplary APPLs include, but are not limited to, compounds of Formula (I), (II), (III), (IV), (V), and (VI), and salts thereof, as described herein: wherein m, n, p, R?, R1, R2, R3, R4, R5, R8, Z, W, Y, and Z are as defined herein.
    Type: Application
    Filed: November 1, 2016
    Publication date: June 15, 2017
    Applicant: Massachusetts Institute of Technology
    Inventors: Yizhou Dong, Kevin Thomas Love, Robert S. Langer, Daniel Griffith Anderson, Delai Chen, Yi Chen, Arturo Jose Vegas, Akinleye C. Alabi, Yunlong Zhang
  • Publication number: 20170095514
    Abstract: Biocompatible hydrogel capsules encapsulating mammalian cells having a diameter of greater than 1 mm, and optionally a cell free core, are disclosed which have reduced fibrotic overgrowth after implantation in a subject. Methods of treating a disease in a subject are also disclosed that involve administering a therapeutically effective amount of the disclosed encapsulated cells to the subject.
    Type: Application
    Filed: December 15, 2016
    Publication date: April 6, 2017
    Inventors: Minglin Ma, Daniel G. Anderson, Robert S. Langer, Omid Veiseh, Arturo Jose Vegas, Joshua Charles Doloff, Delai Chen, Christian J. Kastrup
  • Patent number: 9555007
    Abstract: Biocompatible hydrogel capsules encapsulating mammalian cells having a diameter of greater than 1 mm, and optionally a cell free core, are disclosed which have reduced fibrotic overgrowth after implantation in a subject. Methods of treating a disease in a subject are also disclosed that involve administering a therapeutically effective amount of the disclosed encapsulated cells to the subject.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 31, 2017
    Assignees: Massachusetts Institute of Technology, The Children's Medical Center Corporation
    Inventors: Minglin Ma, Daniel G. Anderson, Robert S. Langer, Omid Veiseh, Arturo Jose Vegas, Joshua Charles Doloff, Delai Chen, Christian J. Kastrup
  • Patent number: 9512073
    Abstract: Described herein are compounds and compositions characterized, in certain embodiments, by conjugation of various groups, such as lipophilic groups, to an amino or amide group of an amino acid, a linear or cyclic peptide, a linear or cyclic polypeptide, or structural isomer thereof, to provide compounds of the present invention, collectively referred to herein as “APPLs”. Such APPLs are deemed useful for a variety of applications, such as, for example, improved nucleotide delivery. Exemplary APPLs include, but are not limited to, compounds of Formula (I), (II), (III), (IV), (V), and (VI), and salts thereof, as described herein: wherein m, n, p, R?, R1, R2, R3, R4, R5, R8, Z, W, Y, and Z are as defined herein.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: December 6, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Yizhou Dong, Kevin Thomas Love, Robert S. Langer, Daniel Griffith Anderson, Delai Chen, Yi Chen, Arturo Jose Vegas, Akinleye C. Alabi, Yunlong Zhang
  • Publication number: 20160317458
    Abstract: This invention provides for a compound of formula (I) or a pharmaceutically acceptable salt thereof, wherein R1-R3, n, p, L1 and L2 are defined herein. The compounds of formula (I) and pharmaceutically acceptable salts thereof are cationic lipids useful in the delivery of biologically active agents to cells and tissues.
    Type: Application
    Filed: December 17, 2014
    Publication date: November 3, 2016
    Inventors: Luis Brito, Delai Chen, Gabriel Grant Gamber, Andrew Geall, Kevin Love, Thomas Zabawa, Frederic Zecri
  • Publication number: 20160311759
    Abstract: This invention provides for a compound of formula (I): or a pharmaceutically acceptable salt thereof, wherein R1-R4, n and p are defined herein. The compounds of formula (I) and pharmaceutically acceptable salts thereof are cationic lipids useful in the delivery of biologically active agents to cells and tissues.
    Type: Application
    Filed: December 17, 2014
    Publication date: October 27, 2016
    Inventors: Luis Brito, Delai Chen, Gabriel Grant Gamber, Andrew Geall, Kevin Love, Thomas Zabawa, Frederic Zecri
  • Publication number: 20160288121
    Abstract: A device is described having a first surface having a plurality of first areas and a second surface having a plurality of second areas. The first surface and the second surface are opposed to one another and can move relative to each other from at least a first position where none of the plurality of first areas, having a first substance, are exposed to plurality of second areas, having a second substance, to a second position. When in the second position, the plurality of first and second areas, and therefore the first and second substances, are exposed to one another. The device may further include a series of ducts in communication with a plurality of first second areas to allow for a substance to be disposed in, or upon, the plurality of second areas when in the first position.
    Type: Application
    Filed: May 25, 2016
    Publication date: October 6, 2016
    Inventors: Rustem F. Ismagilov, Wenbin Du, Liang Li, Feng Shen, Kevin Paul Flood Nichols, Delai Chen, Jason Eugene Kreutz
  • Publication number: 20160256870
    Abstract: A device is described having a first surface having a plurality of first areas and a second surface having a plurality of second areas. The first surface and the second surface are opposed to one another and can move relative to each other from at least a first position where none of the plurality of first areas, having a first substance, are exposed to plurality of second areas, having a second substance, to a second position. When in the second position, the plurality of first and second areas, and therefore the first and second substances, are exposed to one another. The device may further include a series of ducts in communication with a plurality of first second areas to allow for a substance to be disposed in, or upon, the plurality of second areas when in the first position.
    Type: Application
    Filed: May 25, 2016
    Publication date: September 8, 2016
    Inventors: Rustem F. Ismagilov, Wenbin Du, Liang Li, Feng Shen, Kevin Paul Flood Nichols, Delai Chen, Jason Eugene Kreutz
  • Patent number: 9415392
    Abstract: A device is described having a first surface having a plurality of first areas and a second surface having a plurality of second areas. The first surface and the second surface are opposed to one another and can move relative to each other from at least a first position where none of the plurality of first areas, having a first substance, are exposed to plurality of second areas, having a second substance, to a second position. When in the second position, the plurality of first and second areas, and therefore the first and second substances, are exposed to one another. The device may further include a series of ducts in communication with a plurality of first second areas to allow for a substance to be disposed in, or upon, the plurality of second areas when in the first position.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: August 16, 2016
    Assignee: The University of Chicago
    Inventors: Rustem F. Ismagilov, Wenbin Du, Liang Li, Feng Shen, Kevin Paul Flood Nichols, Delai Chen, Jason Eugene Kreutz
  • Patent number: 9315472
    Abstract: The present invention provides novel 1,3,5-triazinane-2,4,6-trione derivatives, such as compounds of any one of Formulae (I) and (II), and salts thereof, and methods of preparing the compounds. Also provided are compositions including a compound of the invention and an agent (e.g., an siRNA, mRNA, or plasmid DNA). The present invention also provides methods and kits using the compositions for delivering an agent to a subject (e.g., to the liver, spleen, or lung of the subject) or cell and for treating and/or preventing a range of diseases, such as genetic diseases, proliferative diseases, hematological diseases, neurological diseases, liver diseases, and lung diseases.
    Type: Grant
    Filed: May 1, 2014
    Date of Patent: April 19, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Yizhou Dong, Akinleye C. Alabi, Hao Yin, Joseph R. Dorkin, Delai Chen, Robert S. Langer, Daniel Griffith Anderson, Ahmed A. Eltoukhy
  • Publication number: 20160030359
    Abstract: Biomedical devices for implantation with decreased pericapsular fibrotic overgrowth are disclosed. The device includes biocompatible materials and has specific characteristics that allow the device to elicit less of a fibrotic reaction after implantation than the same device lacking one or more of these characteristic that are present on the device. Biocompatible hydrogel capsules encapsulating mammalian cells having a diameter of greater than 1 mm, and optionally a cell free core, are disclosed which have reduced fibrotic overgrowth after implantation in a subject. Methods of treating a disease in a subject are also disclosed that involve administering a therapeutically effective amount of the disclosed encapsulated cells to the subject.
    Type: Application
    Filed: March 14, 2014
    Publication date: February 4, 2016
    Applicant: Massachusetts Institute of Technology
    Inventors: Minglin Ma, Daniel G. Anderson, Robert S. Langer, Omid Veiseh, Joshua Charles Doloff, Delai Chen, Christian J. Kastrup, Arturo Jose Vegas
  • Publication number: 20140329884
    Abstract: The present invention provides novel 1,3,5-triazinane-2,4,6-trione derivatives, such as compounds of any one of Formulae (I) and (II), and salts thereof, and methods of preparing the compounds. Also provided are compositions including a compound of the invention and an agent (e.g., an siRNA, mRNA, or plasmid DNA). The present invention also provides methods and kits using the compositions for delivering an agent to a subject (e.g., to the liver, spleen, or lung of the subject) or cell and for treating and/or preventing a range of diseases, such as genetic diseases, proliferative diseases, hematological diseases, neurological diseases, liver diseases, and lung diseases.
    Type: Application
    Filed: May 1, 2014
    Publication date: November 6, 2014
    Inventors: Yizhou Dong, Akinleye C. Alabi, Hao Yin, Joseph R. Dorkin, Delai Chen, Robert S. Langer, Daniel Griffith Anderson, Ahmed A. Eltoukhy
  • Patent number: 8622987
    Abstract: A method for sampling and/or introducing a matter to an environment comprises introducing a first array of plugs through a first microchannel of a device into an exchange region of the device in which mass transport between the environment and the plug fluid of at least one plug in the first array of plugs occurs and a second array of plugs is formed. The exchange region is in fluid communication with the first microchannel. The method further comprises directing the second array of plugs into a second microchannel downstream of and in fluid communication with the exchange region.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: January 7, 2014
    Assignee: The University of Chicago
    Inventors: Rustem F. Ismagilov, Delai Chen, Weishan Liu, Wenbin Du
  • Publication number: 20120028342
    Abstract: A device is described having a first surface having a plurality of first areas and a second surface having a plurality of second areas. The first surface and the second surface are opposed to one another and can move relative to each other from at least a first position where none of the plurality of first areas, having a first substance, are exposed to plurality of second areas, having a second substance, to a second position. When in the second position, the plurality of first and second areas, and therefore the first and second substances, are exposed to one another. The device may further include a series of ducts in communication with a plurality of first second areas to allow for a substance to be disposed in, or upon, the plurality of second areas when in the first position.
    Type: Application
    Filed: March 23, 2010
    Publication date: February 2, 2012
    Inventors: Rustem F. Ismagilov, Wenbin Du, Liang Li, Feng Shen, Kevin Paul Flood Nichols, Delai Chen, Jason Eugene Kreutz
  • Publication number: 20110112503
    Abstract: A method for sampling and/or introducing a matter to an environment comprises introducing a first array of plugs through a first microchannel of a device into an exchange region of the device in which mass transport between the environment and the plug fluid of at least one plug in the first array of plugs occurs and a second array of plugs is formed. The exchange region is in fluid communication with the first microchannel. The method further comprises directing the second array of plugs into a second microchannel downstream of and in fluid communication with the exchange region.
    Type: Application
    Filed: June 4, 2009
    Publication date: May 12, 2011
    Inventors: Rustem F. Ismagilov, Delai Chen, Weishan Liu, Wenbin Du