Patents Assigned to MAXCYTE, Inc.
  • Publication number: 20200237825
    Abstract: The present invention relates to the transient modification of cells. In particular embodiments, the cells are immune systems, such as PBMC, PBL, T (CD3+ and/or CD8+) and Natural Killer (NK) cells. The modified cells provide a population of cells that express a genetically engineered chimeric receptor which can be administered to a patient therapeutically. The present invention further relates to methods that deliver mRNA coding for the chimeric receptor to unstimulated resting PBMC, PBL, T (CD3+ and/or CD8+) and NK cells and which delivers the mRNA efficiently to the transfected cells and promotes significant target cell killing.
    Type: Application
    Filed: April 15, 2020
    Publication date: July 30, 2020
    Applicant: Maxcyte, Inc.
    Inventors: Linhong LI, Madhusudan V. PESHWA
  • Patent number: 10660917
    Abstract: The present invention relates to the transient modification of cells. In particular embodiments, the cells are immune systems, such as PBMC, PBL, T (CD3+ and/or CD8+) and Natural Killer (NK) cells. The modified cells provide a population of cells that express a genetically engineered chimeric receptor which can be administered to a patient therapeutically. The present invention further relates to methods that deliver mRNA coding for the chimeric receptor to unstimulated resting PBMC, PBL, T (CD3+ and/or CD8+) and NK cells and which delivers the mRNA efficiently to the transfected cells and promotes significant target cell killing.
    Type: Grant
    Filed: May 23, 2017
    Date of Patent: May 26, 2020
    Assignee: Maxcyte, Inc.
    Inventors: Linhong Li, Madhusudan V. Peshwa
  • Patent number: 10316335
    Abstract: Methods and compositions are provided involving high producing cell lines. Embodiments concern efficient methods for screening for such cell lines and for creating such cell lines. These cell lines can be used to create large amounts of protein. To quickly generate large quantity of recombinant proteins or vaccines for both pre-clinical study and clinical trials, almost all drug development will face the same challenging obstacle of rapidly generating a high stable producer. Developing and identifying a stable cell line is a critical part of biopharmaceutical development.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: June 11, 2019
    Assignee: MaxCyte, Inc.
    Inventors: Weili Wang, James P. Brady, Madhusudan V. Peshwa
  • Publication number: 20180112235
    Abstract: Compositions and methods concern the sequence modification of an endogenous genomic DNA region. Certain aspects relate to a method for site-specific sequence modification of a target genomic DNA region in cells comprising: contacting the cells with an activating composition; transfecting the cells with a transfection composition comprising (a) donor DNA and (b) a DNA digesting agent; wherein the donor DNA comprises: (i) a homologous region comprising nucleic acid sequence homologous to the target genomic DNA region; and (ii) a sequence modification region; and wherein the genomic DNA sequence is modified specifically at the target genomic DNA region.
    Type: Application
    Filed: April 13, 2016
    Publication date: April 26, 2018
    Applicant: MaxCyte, Inc.
    Inventors: Linhong Li, Madhusudan PESHWA
  • Publication number: 20180028567
    Abstract: The present invention relates to the transient modification of cells. In particular embodiments, the cells are immune systems, such as PBMC, PBL, T (CD3+ and/or CD8+) and Natural Killer (NK) cells. The modified cells provide a population of cells that express a genetically engineered chimeric receptor which can be administered to a patient therapeutically. The present invention further relates to methods that deliver mRNA coding for the chimeric receptor to unstimulated resting PBMC, PBL, T (CD3+ and/or CD8+) and NK cells and which delivers the mRNA efficiently to the transfected cells and promotes significant target cell killing.
    Type: Application
    Filed: October 6, 2017
    Publication date: February 1, 2018
    Applicant: Maxcyte, Inc.
    Inventors: Linhong LI, Madhusudan V. PESHWA
  • Publication number: 20170258837
    Abstract: The present invention relates to the transient modification of cells. In particular embodiments, the cells are immune systems, such as PBMC, PBL, T (CD3+ and/or CD8+) and Natural Killer (NK) cells. The modified cells provide a population of cells that express a genetically engineered chimeric receptor which can be administered to a patient therapeutically. The present invention further relates to methods that deliver mRNA coding for the chimeric receptor to unstimulated resting PBMC, PBL, T (CD3+ and/or CD8+) and NK cells and which delivers the mRNA efficiently to the transfected cells and promotes significant target cell killing.
    Type: Application
    Filed: May 23, 2017
    Publication date: September 14, 2017
    Applicant: Maxcyte, Inc.
    Inventors: Linhong LI, Madhusudan V. PESHWA
  • Patent number: 9669058
    Abstract: The present invention relates to the transient modification of cells. In particular embodiments, the cells are immune systems, such as PBMC, PBL, T (CD3+ and/or CD8+) and Natural Killer (NK) cells. The modified cells provide a population of cells that express a genetically engineered chimeric receptor which can be administered to a patient therapeutically. The present invention further relates to methods that deliver mRNA coding for the chimeric receptor to unstimulated resting PBMC, PBL, T (CD3+ and/or CD8+) and NK cells and which delivers the mRNA efficiently to the transfected cells and promotes significant target cell killing.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: June 6, 2017
    Assignee: Maxcyte, Inc.
    Inventors: Linhong Li, Madhusudan V. Peshwa
  • Patent number: 9546350
    Abstract: The electroporation chamber and its related devices combine the features of an electroporation chamber that acts as a manifold for regulation of sample flow with those of a flow electroporation device to form a regulated flow electroporation device. The invention further comprises a novel regulated flow electroporation chamber that enables conditions in which a sample is uniformly processed in individual fractions or volumes in a fully closed (sterile) system.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: January 17, 2017
    Assignee: Maxcyte, Inc.
    Inventors: Sergey Dzekunov, Nicholas Chopas, Linhong Li
  • Patent number: 9132153
    Abstract: The present invention relates to the transient modification of cells. In particular embodiments, the cells are immune systems, such as PBMC, PBL, T (CD3+ and/or CD8+) and Natural Killer (NK) cells. The modified cells provide a population of cells that express a genetically engineered chimeric receptor which can be administered to a patient therapeutically. The present invention further relates to methods that deliver mRNA coding for the chimeric receptor to unstimulated resting PBMC, PBL, T (CD3+ and/or CD8+) and NK cells and which delivers the mRNA efficiently to the transfected cells and promotes significant target cell killing.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: September 15, 2015
    Assignee: MaxCyte, Inc.
    Inventors: Linhong Li, Madhusudan V. Peshwa
  • Patent number: 8450112
    Abstract: The present invention relates to the transient modification of cells. In particular embodiments, the cells are immune systems, such as PBMC, PBL, T (CD3+ and/or CD8+) and Natural Killer (NK) cells. The modified cells provide a population of cells that express a genetically engineered chimeric receptor which can be administered to a patient therapeutically. The present invention further relates to methods that deliver mRNA coding for the chimeric receptor to unstimulated resting PBMC, PBL, T (CD3+ and/or CD8+) and NK cells and which delivers the mRNA efficiently to the transfected cells and promotes significant target cell killing.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: May 28, 2013
    Assignee: Maxcyte, Inc.
    Inventors: Linhong Li, Madhusudan V. Peshwa
  • Publication number: 20120088842
    Abstract: Embodiments of the invention are directed to a technique for electroporation that allows for a delivery of long electrical pulses of high magnitude in highly conductive buffers and minimizes damage to cells undergoing electroporation.
    Type: Application
    Filed: July 15, 2009
    Publication date: April 12, 2012
    Applicant: MAXCYTE, INC.
    Inventor: Sergey Dzekunov
  • Patent number: 7991559
    Abstract: Techniques for computerized electroporation. An electroporation apparatus may be controlled according to one of a plurality of previously-saved, user-defined processing protocols. A processing log associated with a processing protocol may be generated, and the processing log may include patient or sample specific information. The processing log or a summary of the processing log may be exported to a user. Interactive instructions may be provided to a user. Those instructions may correspond to one or more steps of a processing protocol.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: August 2, 2011
    Assignee: Maxcyte Inc.
    Inventors: Sergey M. Dzekunov, Sarah H. Wang, Arthur D. Hanson
  • Patent number: 7771984
    Abstract: The electroporation chamber and its related devices combine the features of an electroporation chamber that acts as a manifold for regulation of sample flow with those of a flow electroporation device to form a regulated flow electroporation device. The invention further comprises a novel regulated flow electroporation chamber that enables conditions in which a sample is uniformly processed in individual fractions or volumes in a fully closed (sterile) system.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: August 10, 2010
    Assignee: Maxcyte, Inc.
    Inventors: Sergey Dzekunov, Nicholas Chopas, Linhong Li
  • Patent number: 7186559
    Abstract: The present invention relates to methods and apparatus for the encapsulation of biologically-active substances in various cell populations. More particularly, the present invention relates to a method and apparatus for the encapsulation of biologically-active substances in various cell populations in blood by electroporation to achieve therapeutically desirable changes in the physical characteristics of the various cell populations in blood.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: March 6, 2007
    Assignee: Maxcyte, Inc.
    Inventors: Sergey M. Dzekunov, Linhong Li, Vininder Singh, Linda Liu, John W. Holaday, Hyung J. Lee
  • Patent number: 7141425
    Abstract: The present invention relates to methods and apparatus for the encapsulation of biologically-active substances in various cell populations. More particularly, the present invention relates to a method and apparatus for the encapsulation of biologically-active substances in various cell populations in blood by electroporation to achieve therapeutically desirable changes in the physical characteristics of the various cell populations in blood.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: November 28, 2006
    Assignee: Maxcyte, Inc.
    Inventors: Sergey M. Dzekunov, Hyung J. Lee, Linhong Li, Vininder Singh, Linda Liu, John W. Holaday
  • Patent number: 7029916
    Abstract: The present invention relates to methods and apparatus for the encapsulation of biologically-active substances in various cell populations. More particularly, the present invention relates to a method and apparatus for the encapsulation of biologically-active substances in various cell populations in blood by electroporation to achieve therapeutically desirable changes in the physical characteristics of the various cell populations in blood.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: April 18, 2006
    Assignee: MAXCYTE, Inc.
    Inventors: Sergey M. Dzekunov, Hyung J. Lee, Linhong Li, Vininder Singh, Linda Liu, John W. Holaday
  • Publication number: 20040214333
    Abstract: Methods for loading an antigen-presenting cell with one ore more antigens are disclosed. Methods for the treatment and prevention of a disease in a subject using an antigen-presenting cell that has been electroporated with a composition of one or more antigens. Composition of one or more antigens comprises one or more antigens of a hyperproliferative cell, a microorganism or a microorganism-infected cell are also disclosed. In addition, compositions of antigen-presenting cells that have been loaded with one or more antigens of a hyperproliferative cell, a microorganism-infected cell or a microorganism using electroporation are disclosed.
    Type: Application
    Filed: February 18, 2004
    Publication date: October 28, 2004
    Applicant: MaxCyte, Inc.
    Inventors: Linda N. Liu, Jonathan M. Weiss
  • Publication number: 20040197883
    Abstract: The present invention relates to methods and apparatus for the encapsulation of biologically-active substances in various cell populations. More particularly, the present invention relates to a method and apparatus for the encapsulation of biologically-active substances in various cell populations in blood by electroporation to achieve therapeutically desirable changes in the physical characteristics of the various cell populations in blood.
    Type: Application
    Filed: January 5, 2004
    Publication date: October 7, 2004
    Applicant: MAXCYTE, Inc.
    Inventors: Sergey M. Dzekunov, Linhong Li, Vininder Singh, Linda Liu, John W. Holaday, Hyung J. Lee
  • Patent number: 6773669
    Abstract: The present invention relates to a method and apparatus for the encapsulation of substances and drugs into cells and platelets. The present invention is also related to the incorporation of thrombus dissolving drugs, such as tissue plasminogen activator and streptokinase into platelets using the apparatus described herein. The treated platelets can then be used to treat patients suffering from a thrombus blocking a blood vessel. The present invention is also related to a preparation of red blood cells that has a stable right shift of the oxygen dissociation curve.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: August 10, 2004
    Assignee: Maxcyte, Inc.
    Inventors: John W. Holaday, Peter H. Meserol, Doug Doerfler, Shawn J. Green, Vininder Singh
  • Publication number: 20040115784
    Abstract: Techniques for streaming electroporation. A representative but non-limiting method includes: generating a spatially inhomogeneous electric field with a pair of electrodes and displacing the pair of electrodes and a sample relative to one other while the electric field is substantially constant in terms of magnitude so that the sample is displaced across electric field lines for a time sufficient to effect electroporation.
    Type: Application
    Filed: September 30, 2003
    Publication date: June 17, 2004
    Applicant: Maxcyte, Inc.
    Inventor: Sergey Dzekunov