Patents by Inventor Assaf Rotem
Assaf Rotem 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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Patent number: 11952622Abstract: Methods for analyzing DNA-containing samples are provided. The methods can comprise isolating a single genomic equivalent of DNA from the DNA-containing sample to provide a single isolated DNA molecule. The single isolated DNA molecule can be subjected to amplification conditions in the presence of one or more sets of unique molecularly tagged primers to provide one or more amplicons. Any spurious allelic sequences generated during the amplification process are tagged with an identical molecular tag. The methods can also include a step of determining the sequence of the one or more amplicons, in which the majority sequence for each code is selected as the sequence of the single original encapsulated target. The DNA-containing sample can be a forensic sample (e.g., mixed contributor sample), a fetal genetic screening sample, or a biological cell.Type: GrantFiled: July 15, 2014Date of Patent: April 9, 2024Assignee: The Johns Hopkins UniversityInventors: Andrew B. Feldman, Jeffrey S. Lin, David Weitz, Assaf Rotem
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Publication number: 20230051239Abstract: Described herein are compositions of hydrogels and methods of use thereof.Type: ApplicationFiled: December 31, 2020Publication date: February 16, 2023Inventors: Assaf Rotem, Ellen Lovisa Larsdotter Afzelius, Gang Hu, Joanna Swain, Ohad Yosefson, Benjamin Peter Roscoe, Peter Lyubomirov Rogov, Harsh Jayeshkumar Vaidya
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Publication number: 20220090297Abstract: The disclosure relates to peptide libraries and uses thereof.Type: ApplicationFiled: January 3, 2020Publication date: March 24, 2022Inventors: Joanna Feltham Swain, Ellen Lovisa Larsdotter Afzelius, William Michael Gordon, Christian B. Matranga, Assaf Rotem, Gang Hu
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Publication number: 20210355535Abstract: The present invention generally relates to microfluidics and/or epigenetic sequencing. In one set of embodiments, cells contained within a plurality of microfluidic droplets are lysed and the DNA (e.g., from nucleosomes) within the droplets are labeled, e.g., with adapters containing an identification sequence. The adapters may also contain other sequences, e.g., restriction sites, primer sites, etc., to assist with later analysis. After labeling with adapters, the DNA from the different cells may be combined and analyzed, e.g., to determine epigenetic information about the cells. For example, the DNA may be separated on the basis of certain modifications (e.g., methylation), and the DNA from the separated nucleosomes may be sequenced using techniques such as chromatin immunoprecipitation (“CUP”). In some cases, the DNA sequences may also be aligned with genomes, e.g., to determine which portions of the genome were epigenetically modified, e.g., via methylation.Type: ApplicationFiled: May 25, 2021Publication date: November 18, 2021Applicants: President and Fellows of Harvard College, The General Hospital CorporationInventors: David Weitz, Assaf Rotem, Oren Ram, Bradley E. Bernstein
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Patent number: 11047003Abstract: The present invention generally relates to microfluidics and/or epigenetic sequencing. In one set of embodiments, cells contained within a plurality of microfluidic droplets are lysed and the DNA (e.g., from nucleosomes) within the droplets are labeled, e.g., with adapters containing an identification sequence. The adapters may also contain other sequences, e.g., restriction sites, primer sites, etc., to assist with later analysis. After labeling with adapters, the DNA from the different cells may be combined and analyzed, e.g., to determine epigenetic information about the cells. For example, the DNA may be separated on the basis of certain modifications (e.g., methylation), and the DNA from the separated nucleosomes may be sequenced using techniques such as chromatin immunoprecipitation (“ChIP”). In some cases, the DNA sequences may also be aligned with genomes, e.g., to determine which portions of the genome were epigenetically modified, e.g., via methylation.Type: GrantFiled: August 7, 2017Date of Patent: June 29, 2021Assignees: The General Hospital Corporation, President and Fellows of Harvard CollegeInventors: Assaf Rotem, Oren Ram, Bradley E. Bernstein, David A. Weitz
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Patent number: 11001883Abstract: The present invention generally relates to microfluidics and/or epigenetic sequencing. In one set of embodiments, cells contained within a plurality of microfluidic droplets are lysed and the DNA (e.g., from nucleosomes) within the droplets are labeled, e.g., with adapters containing an identification sequence. The adapters may also contain other sequences, e.g., restriction sites, primer sites, etc., to assist with later analysis. After labeling with adapters, the DNA from the different cells may be combined and analyzed, e.g., to determine epigenetic information about the cells. For example, the DNA may be separated on the basis of certain modifications (e.g., methylation), and the DNA from the separated nucleosomes may be sequenced using techniques such as chromatin immunoprecipitation (“ChIP”). In some cases, the DNA sequences may also be aligned with genomes, e.g., to determine which portions of the genome were epigenetically modified, e.g., via methylation.Type: GrantFiled: September 5, 2014Date of Patent: May 11, 2021Assignees: The General Hospital Corporation, President and Fellows of Harvard CollegeInventors: Assaf Rotem, Oren Ram, Bradley E. Bernstein, David A. Weitz
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Publication number: 20180265922Abstract: The present invention generally relates to microfluidics and/or epigenetic sequencing. In one set of embodiments, cells contained within a plurality of microfluidic droplets are lysed and the DNA (e.g., from nucleosomes) within the droplets are labeled, e.g., with adapters containing an identification sequence. The adapters may also contain other sequences, e.g., restriction sites, primer sites, etc., to assist with later analysis. After labeling with adapters, the DNA from the different cells may be combined and analyzed, e.g., to determine epigenetic information about the cells. For example, the DNA may be separated on the basis of certain modifications (e.g., methylation), and the DNA from the separated nucleosomes may be sequenced using techniques such as chromatin immunoprecipitation (“ChIP”). In some cases, the DNA sequences may also be aligned with genomes, e.g., to determine which portions of the genome were epigenetically modified, e.g., via methylation.Type: ApplicationFiled: April 27, 2018Publication date: September 20, 2018Inventors: David A. Weitz, Assaf Rotem, Oren Ram, Bradley E. Bernstein
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Publication number: 20180155778Abstract: The present invention generally relates to microfluidics and/or epigenetic sequencing. In one set of embodiments, cells contained within a plurality of microfluidic droplets are lysed and the DNA (e.g., from nucleosomes) within the droplets are labeled, e.g., with adapters containing an identification sequence. The adapters may also contain other sequences, e.g., restriction sites, primer sites, etc., to assist with later analysis. After labeling with adapters, the DNA from the different cells may be combined and analyzed, e.g., to determine epigenetic information about the cells. For example, the DNA may be separated on the basis of certain modifications (e.g., methylation), and the DNA from the separated nucleosomes may be sequenced using techniques such as chromatin immunoprecipitation (“ChIP”). In some cases, the DNA sequences may also be aligned with genomes, e.g., to determine which portions of the genome were epigenetically modified, e.g., via methylation.Type: ApplicationFiled: December 8, 2017Publication date: June 7, 2018Inventors: David A. Weitz, Assaf Rotem, Oren Ram, Bradley E. Bernstein
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Publication number: 20180155777Abstract: The present invention generally relates to microfluidics and/or epigenetic sequencing. In one set of embodiments, cells contained within a plurality of microfluidic droplets are lysed and the DNA (e.g., from nucleosomes) within the droplets are labeled, e.g., with adapters containing an identification sequence. The adapters may also contain other sequences, e.g., restriction sites, primer sites, etc., to assist with later analysis. After labeling with adapters, the DNA from the different cells may be combined and analyzed, e.g., to determine epigenetic information about the cells. For example, the DNA may be separated on the basis of certain modifications (e.g., methylation), and the DNA from the separated nucleosomes may be sequenced using techniques such as chromatin immunoprecipitation (“ChIP”). In some cases, the DNA sequences may also be aligned with genomes, e.g., to determine which portions of the genome were epigenetically modified, e.g., via methylation.Type: ApplicationFiled: December 8, 2017Publication date: June 7, 2018Inventors: David A. Weitz, Assaf Rotem, Oren Ram, Bradley E. Bernstein
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Publication number: 20180023133Abstract: The present invention generally relates to microfluidics and/or epigenetic sequencing. In one set of embodiments, cells contained within a plurality of microfluidic droplets are lysed and the DNA (e.g., from nucleosomes) within the droplets are labeled, e.g., with adapters containing an identification sequence. The adapters may also contain other sequences, e.g., restriction sites, primer sites, etc., to assist with later analysis. After labeling with adapters, the DNA from the different cells may be combined and analyzed, e.g., to determine epigenetic information about the cells. For example, the DNA may be separated on the basis of certain modifications (e.g., methylation), and the DNA from the separated nucleosomes may be sequenced using techniques such as chromatin immunoprecipitation (“ChIP”). In some cases, the DNA sequences may also be aligned with genomes, e.g., to determine which portions of the genome were epigenetically modified, e.g., via methylation.Type: ApplicationFiled: August 7, 2017Publication date: January 25, 2018Inventors: Assaf Rotem, Oren Ram, Bradley E. Bernstein, David A. Weitz
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Patent number: 9770601Abstract: Transcranial magnetic stimulation (TMS) is a remarkable tool for probing the brain. However, it is still unclear why specific regions in the cortex are excitable by TMS while others are not. This invention provides methods and tools for the design of efficient magnetic stimulators. Such stimulators can excite neuronal networks that were not sensitive to stimulation until now. Stimulation can be carried out both in-vitro and in-vivo. Novel systems and techniques of this invention will enable both treatment and diagnostics by stimulating regions of the brain or neuronal assemblies that were previously unaffected by TMS.Type: GrantFiled: May 18, 2015Date of Patent: September 26, 2017Assignee: YEDA RESEARCH AND DEVELOPMENT CO. LTD.Inventors: Elisha Moses, Assaf Rotem
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Patent number: 9573099Abstract: The present invention generally relates to emulsions, and more particularly, to double and other multiple emulsions. Certain aspects of the present invention are generally directed to the creation of double emulsions and other multiple emulsions at a common junction of microfluidic channels. In some cases, the microfluidic channels at the common junction may have substantially the same hydrophobicity. In one set of embodiments, a device may include a common junction of six or more channels, where a first fluid flows through one channel, a second fluid flows through two channels, and a third or carrying fluid flows through two more channels, such that a double emulsion of a first droplet of the first fluid, contained in a second droplet of the second fluid, contained by the carrying fluid, flows away from the common junction through a sixth channel.Type: GrantFiled: December 7, 2015Date of Patent: February 21, 2017Assignee: President and Fellows of Harvard CollegeInventors: David A. Weitz, Assaf Rotem, Adam R. Abate, Christian Holtze
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Publication number: 20160208323Abstract: Disclosed are methods for shearing and tagging chromatin DNA. The disclosed methods include contacting chromatin DNA with at least one transposome, that includes a transposase enzyme. The transposon is made up of a first DNA molecule that includes a first transposase recognition site and a second DNA molecule that includes a second transposase recognition site, wherein the transposase integrates the first and second DNA molecules into chromatin DNA. The first and second DNA molecules of the transposon can be disconnected, such that upon integration of the transposon the chromatin bound DNA is sheared and tagged with the first and second DNA molecules, for example to prepare a library of sheared and tagged chromatin DNA fragments.Type: ApplicationFiled: June 19, 2014Publication date: July 21, 2016Inventors: Bradley BERNSTEIN, Alon GOREN, Chad NUSBAUM, Oren RAM, Assaf ROTEM, Daniel TARJAN, Jeffrey XING, Aviv REGEV
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Publication number: 20160193574Abstract: The present invention generally relates to emulsions, and more particularly, to double and other multiple emulsions. Certain aspects of the present invention are generally directed to the creation of double emulsions and other multiple emulsions at a common junction of microfluidic channels. In some cases, the microfluidic channels at the common junction may have substantially the same hydrophobicity. In one set of embodiments, a device may include a common junction of six or more channels, where a first fluid flows through one channel, a second fluid flows through two channels, and a third or carrying fluid flows through two more channels, such that a double emulsion of a first droplet of the first fluid, contained in a second droplet of the second fluid, contained by the carrying fluid, flows away from the common junction through a sixth channel.Type: ApplicationFiled: December 7, 2015Publication date: July 7, 2016Inventors: David A. Weitz, Assaf Rotem, Adam R. Abate, Christian Holtze
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Patent number: 9238206Abstract: The present invention generally relates to emulsions, and more particularly, to double and other multiple emulsions. Certain aspects of the present invention are generally directed to the creation of double emulsions and other multiple emulsions at a common junction of microfluidic channels. In some cases, the microfluidic channels at the common junction may have substantially the same hydrophobicity. In one set of embodiments, a device may include a common junction of six or more channels, where a first fluid flows through one channel, a second fluid flows through two channels, and a third or carrying fluid flows through two more channels, such that a double emulsion of a first droplet of the first fluid, contained in a second droplet of the second fluid, contained by the carrying fluid, flows away from the common junction through a sixth channel.Type: GrantFiled: May 22, 2012Date of Patent: January 19, 2016Assignees: President and Fellows of Harvard College, BASF SEInventors: Assaf Rotem, David A. Weitz, Adam R. Abate, Christian Holtze
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Publication number: 20150246238Abstract: Transcranial magnetic stimulation (TMS) is a remarkable tool for probing the brain. However, it is still unclear why specific regions in the cortex are excitable by TMS while others are not. This invention provides methods and tools for the design of efficient magnetic stimulators. Such stimulators can excite neuronal networks that were not sensitive to stimulation until now. Stimulation can be carried out both in-vitro and in-vivo. Novel systems and techniques of this invention will enable both treatment and diagnostics by stimulating regions of the brain or neuronal assemblies that were previously unaffected by TMS.Type: ApplicationFiled: May 18, 2015Publication date: September 3, 2015Inventors: Elisha MOSES, Assaf Rotem
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Patent number: 9067052Abstract: Transcranial magnetic stimulation (TMS) is a remarkable tool for probing the brain. However, it is still unclear why specific regions in the cortex are excitable by TMS while others are not. This invention provides methods and tools for the design of efficient magnetic stimulators. Such stimulators can excite neuronal networks that were not sensitive to stimulation until now. Stimulation can be carried out both in-vitro and in-vivo. Novel systems and techniques of this invention will enable both treatment and diagnostics by stimulating regions of the brain or neuronal assemblies that were previously unaffected by TMS.Type: GrantFiled: March 2, 2010Date of Patent: June 30, 2015Assignee: YEDA RESEARCH AND DEVELOPMENT CO., LTD. at The Weizmann Institute of ScienceInventors: Elisha Moses, Assaf Rotem
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Patent number: 9033862Abstract: Transcranial magnetic stimulation (TMS) is a remarkable tool for probing the brain. However, it is still unclear why specific regions in the cortex are excitable by TMS while others are not. This invention provides methods and tools for the design of efficient magnetic stimulators. Such stimulators can excite neuronal networks that were not sensitive to stimulation until now. Stimulation can be carried out both in-vitro and in-vivo. Novel systems and techniques of this invention will enable both treatment and diagnostics by stimulating regions of the brain or neuronal assemblies that were previously unaffected by TMS.Type: GrantFiled: March 2, 2010Date of Patent: May 19, 2015Assignee: YEDA RESEARCH AND DEVELOPMENT CO., LTD. at The Weizmann Institute of ScienceInventors: Elisha Moses, Assaf Rotem
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Publication number: 20150057163Abstract: The present invention generally relates to microfluidics and/or epigenetic sequencing. In one set of embodiments, cells contained within a plurality of microfluidic droplets are lysed and the DNA (e.g., from nucleosomes) within the droplets are labeled, e.g., with adapters containing an identification sequence. The adapters may also contain other sequences, e.g., restriction sites, primer sites, etc., to assist with later analysis. After labeling with adapters, the DNA from the different cells may be combined and analyzed, e.g., to determine epigenetic information about the cells. For example, the DNA may be separated on the basis of certain modifications (e.g., methylation), and the DNA from the separated nucleosomes may be sequenced using techniques such as chromatin immunoprecipitation (“ChIP”). In some cases, the DNA sequences may also be aligned with genomes, e.g., to determine which portions of the genome were epigenetically modified, e.g., via methylation.Type: ApplicationFiled: September 5, 2014Publication date: February 26, 2015Inventors: Assaf Rotem, Oren Ram, Bradley E. Bernstein, David A. Weitz
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Publication number: 20150024378Abstract: Methods for analyzing DNA-containing samples are provided. The methods can comprise isolating a single genomic equivalent of DNA from the DNA-containing sample to provide a single isolated DNA molecule. The single isolated DNA molecule can be subjected to amplification conditions in the presence of one or more sets of unique molecularly tagged primers to provide one or more amplicons. Any spurious allelic sequences generated during the amplification process are tagged with an identical molecular tag. The methods can also include a step of determining the sequence of the one or more amplicons, in which the majority sequence for each code is selected as the sequence of the single original encapsulated target. The DNA-containing sample can be a forensic sample (e.g., mixed contributor sample), a fetal genetic screening sample, or a biological cell.Type: ApplicationFiled: July 15, 2014Publication date: January 22, 2015Inventors: Andrew B. Feldman, Jeffrey S. Lin, David Weitz, Assaf Rotem