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).
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Publication number: 20180353643Abstract: 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: ApplicationFiled: May 17, 2016Publication date: December 13, 2018Inventors: Minglin Ma, Daniel G. Anderson, Robert S. Langer, Omid Veiseh, Arturo Jose Vegas, Joshua Charles Doloff, Delai Chen, Christian J. Kastrup
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Publication number: 20180290965Abstract: 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: ApplicationFiled: June 20, 2018Publication date: October 11, 2018Inventors: Luis Brito, Delai Chen, Gabriel Grant Gamber, Andrew Geall, Kevin Love, Thomas Zabawa, Frederic Zecri
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Patent number: 10086013Abstract: 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: GrantFiled: November 1, 2016Date of Patent: October 2, 2018Assignee: Massachusetts Institute of TechnologyInventors: Yizhou Dong, Kevin Thomas Love, Robert S. Langer, Daniel Griffith Anderson, Delai Chen, Yi Chen, Arturo Jose Vegas, Akinleye C. Alabi, Yunlong Zhang
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Patent number: 10059655Abstract: 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: GrantFiled: December 17, 2014Date of Patent: August 28, 2018Assignee: Novartis AGInventors: Luis Brito, Delai Chen, Gabriel Grant Gamber, Andrew Geall, Kevin Love, Thomas Zabawa, Frederic Zecri
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Publication number: 20180036333Abstract: 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: ApplicationFiled: November 1, 2016Publication date: February 8, 2018Applicant: Massachusetts Institute of TechnologyInventors: Yizhou Dong, Kevin Thomas Love, Robert S. Langer, Daniel Griffith Anderson, Delai Chen, Yi Chen, Arturo Jose Vegas, Akinleye C. Alabi, Yunlong Zhang
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Publication number: 20170165290Abstract: 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: ApplicationFiled: November 1, 2016Publication date: June 15, 2017Applicant: Massachusetts Institute of TechnologyInventors: Yizhou Dong, Kevin Thomas Love, Robert S. Langer, Daniel Griffith Anderson, Delai Chen, Yi Chen, Arturo Jose Vegas, Akinleye C. Alabi, Yunlong Zhang
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Publication number: 20170095514Abstract: 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: ApplicationFiled: December 15, 2016Publication date: April 6, 2017Inventors: Minglin Ma, Daniel G. Anderson, Robert S. Langer, Omid Veiseh, Arturo Jose Vegas, Joshua Charles Doloff, Delai Chen, Christian J. Kastrup
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Patent number: 9555007Abstract: 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: GrantFiled: March 14, 2013Date of Patent: January 31, 2017Assignees: Massachusetts Institute of Technology, The Children's Medical Center CorporationInventors: Minglin Ma, Daniel G. Anderson, Robert S. Langer, Omid Veiseh, Arturo Jose Vegas, Joshua Charles Doloff, Delai Chen, Christian J. Kastrup
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Patent number: 9512073Abstract: 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: GrantFiled: October 26, 2012Date of Patent: December 6, 2016Assignee: Massachusetts Institute of TechnologyInventors: Yizhou Dong, Kevin Thomas Love, Robert S. Langer, Daniel Griffith Anderson, Delai Chen, Yi Chen, Arturo Jose Vegas, Akinleye C. Alabi, Yunlong Zhang
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Publication number: 20160317458Abstract: 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: ApplicationFiled: December 17, 2014Publication date: November 3, 2016Inventors: Luis Brito, Delai Chen, Gabriel Grant Gamber, Andrew Geall, Kevin Love, Thomas Zabawa, Frederic Zecri
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Publication number: 20160311759Abstract: 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: ApplicationFiled: December 17, 2014Publication date: October 27, 2016Inventors: Luis Brito, Delai Chen, Gabriel Grant Gamber, Andrew Geall, Kevin Love, Thomas Zabawa, Frederic Zecri
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Publication number: 20160288121Abstract: 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: ApplicationFiled: May 25, 2016Publication date: October 6, 2016Inventors: Rustem F. Ismagilov, Wenbin Du, Liang Li, Feng Shen, Kevin Paul Flood Nichols, Delai Chen, Jason Eugene Kreutz
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Publication number: 20160256870Abstract: 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: ApplicationFiled: May 25, 2016Publication date: September 8, 2016Inventors: Rustem F. Ismagilov, Wenbin Du, Liang Li, Feng Shen, Kevin Paul Flood Nichols, Delai Chen, Jason Eugene Kreutz
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Patent number: 9415392Abstract: 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: GrantFiled: March 23, 2010Date of Patent: August 16, 2016Assignee: The University of ChicagoInventors: Rustem F. Ismagilov, Wenbin Du, Liang Li, Feng Shen, Kevin Paul Flood Nichols, Delai Chen, Jason Eugene Kreutz
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Patent number: 9315472Abstract: 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: GrantFiled: May 1, 2014Date of Patent: April 19, 2016Assignee: Massachusetts Institute of TechnologyInventors: Yizhou Dong, Akinleye C. Alabi, Hao Yin, Joseph R. Dorkin, Delai Chen, Robert S. Langer, Daniel Griffith Anderson, Ahmed A. Eltoukhy
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Publication number: 20160030359Abstract: 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: ApplicationFiled: March 14, 2014Publication date: February 4, 2016Applicant: Massachusetts Institute of TechnologyInventors: Minglin Ma, Daniel G. Anderson, Robert S. Langer, Omid Veiseh, Joshua Charles Doloff, Delai Chen, Christian J. Kastrup, Arturo Jose Vegas
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Publication number: 20140329884Abstract: 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: ApplicationFiled: May 1, 2014Publication date: November 6, 2014Inventors: Yizhou Dong, Akinleye C. Alabi, Hao Yin, Joseph R. Dorkin, Delai Chen, Robert S. Langer, Daniel Griffith Anderson, Ahmed A. Eltoukhy
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Patent number: 8622987Abstract: 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: GrantFiled: June 4, 2009Date of Patent: January 7, 2014Assignee: The University of ChicagoInventors: Rustem F. Ismagilov, Delai Chen, Weishan Liu, Wenbin Du
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Publication number: 20120028342Abstract: 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: ApplicationFiled: March 23, 2010Publication date: February 2, 2012Inventors: Rustem F. Ismagilov, Wenbin Du, Liang Li, Feng Shen, Kevin Paul Flood Nichols, Delai Chen, Jason Eugene Kreutz
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Publication number: 20110112503Abstract: 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: ApplicationFiled: June 4, 2009Publication date: May 12, 2011Inventors: Rustem F. Ismagilov, Delai Chen, Weishan Liu, Wenbin Du