Patents by Inventor Alexander Dongas
Alexander Dongas 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: 20210300954Abstract: The invention relates to the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. In another aspect, the invention relates to compounds of formula (II): processes for making these compounds, and the use thereof in the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. The invention also relates to methods of synthesis of oligomers, including but not limited to oligopeptides, oligosaccharides and oligonucleotides, particularly oligoribonucleotides and also oligodeoxyribonucleotides, in solution systems, and ionic tag linkers for use in methods provided herein.Type: ApplicationFiled: May 21, 2021Publication date: September 30, 2021Inventors: Masad J. Damha, Matthew Hassler, Tak-Hang Chan, Mallikarjuna Reddy Nandyala, Robert Alexander Donga
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Patent number: 11014948Abstract: The invention relates to the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. In another aspect, the invention relates to compounds of formula (II): processes for making these compounds, and the use thereof in the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. The invention also relates to methods of synthesis of oligomers, including but not limited to oligopeptides, oligosaccharides and oligonucleotides, particularly oligoribonucleotides and also oligodeoxyribonucleotides, in solution systems, and ionic tag linkers for use in methods provided herein.Type: GrantFiled: March 19, 2018Date of Patent: May 25, 2021Assignees: The Royal Institution for the Advancement of Learning/McGill University, Hong Kong Polytechnic UniversityInventors: Masad J. Damha, Matthew Hassler, Tak-Hang Chan, Mallikarjuna Reddy Nandyala, Robert Alexander Donga
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Publication number: 20190062355Abstract: The invention relates to the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. In another aspect, the invention relates to compounds of formula (II): processes for making these compounds, and the use thereof in the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. The invention also relates to methods of synthesis of oligomers, including but not limited to oligopeptides, oligosaccharides and oligonucleotides, particularly oligoribonucleotides and also oligodeoxyribonucleotides, in solution systems, and ionic tag linkers for use in methods provided herein.Type: ApplicationFiled: March 19, 2018Publication date: February 28, 2019Inventors: Masad J. Damha, Matthew Hassler, Tak-Hang Chan, Mallikarjuna Reddy Nandyala, Robert Alexander Donga
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Publication number: 20190055276Abstract: The present invention relates to ionic liquids for use in chemical applications and capable of serving the dual function of solvent and liquid support. The ionic liquid lends itself to a method of synthesizing oligomers selected from the group consisting of oligopeptides, oligosaccharides and oligonucleotides, comprising contacting a first monomer unit with an ionic liquid at reaction conditions to provide an ionic liquid bound monomer unit; and contacting the ionic liquid bound monomer unit with at least one further monomer unit at reaction conditions to provide an ionic liquid bound oligomer comprising from 2 to 30 monomer units. The method lends itself to large scale manufacture of oligopeptides, oligosaccharides and oligonucleotides.Type: ApplicationFiled: August 27, 2018Publication date: February 21, 2019Inventors: Tak-Hang Chan, Masad J. Damha, Weishi Miao, Robert Alexander Donga, Xun He
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Patent number: 10059736Abstract: The present invention relates to ionic liquids for use in chemical applications and capable of serving the dual function of solvent and liquid support. The ionic liquid lends itself to a method of synthesizing oligomers selected from the group consisting of oligopeptides, oligosaccharides and oligonucleotides, comprising contacting a first monomer unit with an ionic liquid at reaction conditions to provide an ionic liquid bound monomer unit; and contacting the ionic liquid bound monomer unit with at least one further monomer unit at reaction conditions to provide an ionic liquid bound oligomer comprising from 2 to 30 monomer units. The method lends itself to large scale manufacture of oligopeptides, oligosaccharides and oligonucleotides.Type: GrantFiled: March 15, 2006Date of Patent: August 28, 2018Assignee: McGill UniversityInventors: Tak-Hang Chan, Masad J. Damha, Weishi Miao, Robert Alexander Donga, Xun He
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Patent number: 9920084Abstract: The invention relates to the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. In another aspect, the invention relates to compounds of formula (II) processes for making these compounds, and the use thereof in the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. The invention also relates to methods of synthesis of oligomers, including but not limited to oligopeptides, oligosaccharides and oligonucleotides, particularly oligoribonucleotides and also oligodeoxyribonucleotides, in solution systems, and ionic tag linkers for use in methods provided herein.Type: GrantFiled: August 23, 2012Date of Patent: March 20, 2018Assignees: The Royal Institution for the Advancement of Learning/McGill University, Hong Kong Polytechnic UniversityInventors: Masad J. Damha, Matthew Hassler, Tak-Hang Chan, Mallikarjuna Reddy Nandyala, Robert Alexander Donga
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Publication number: 20140256926Abstract: The invention relates to the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. In another aspect, the invention relates to compounds of formula (II) processes for making these compounds, and the use thereof in the chemical synthesis of oligonucleotides, e.g., oligoribonucleotides. The invention also relates to methods of synthesis of oligomers, including but not limited to oligopeptides, oligosaccharides and oligonucleotides, particularly oligoribonucleotides and also oligodeoxyribonucleotides, in solution systems, and ionic tag linkers for use in methods provided herein.Type: ApplicationFiled: August 23, 2012Publication date: September 11, 2014Applicants: Hong Kong Polytechnic University, The Royal Institution for the Advancement of Learning/McGill UniversityInventors: Masad J. Damha, Matthew Hassler, Tak-Hang Chan, Mallikarjuna Reddy Nandyala, Robert Alexander Donga
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Publication number: 20100041869Abstract: The present invention relates to ionic liquids for use in chemical applications and capable of serving the dual function of solvent and liquid support. The ionic liquid lends itself to a method of synthesizing oligomers selected from the group consisting of oligopeptides, oligosaccharides and oligonucleotides, comprising contacting a first monomer unit with an ionic liquid at reaction conditions to provide an ionic liquid bound monomer unit; and contacting the ionic liquid bound monomer unit with at least one further monomer unit at reaction conditions to provide an ionic liquid bound oligomer comprising from 2 to 30 monomer units. The method lends itself to large scale manufacture of oligopeptides, oligosaccharides and oligonucleotides.Type: ApplicationFiled: March 15, 2006Publication date: February 18, 2010Applicant: McGill UniversityInventors: Tak-Hang Chan, Masad J. Damha, Weishi Miao, Robert Alexander Donga, Xun He
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Patent number: 4865236Abstract: A clothing hanger formed of a synthetic plastic material and comprising a body portion adapted to support articles of clothing and a hook portion by which the hanger may be supported. The body portion comprises a pair of arms each of which has a cross sectional configuration having a non-central neutral axis. Each arm includes a pair of, spaced apart, first webs positioned on the neutral axis, a second web displaced on one side of the neutral axis, a pair of connecting webs one of which connects the second web with each of the first webs extending from each end of the second web towards and through the neutral axis, and flanges extending transversely of the first webs on both sides of the neutral axis. The hangers according to the invention are lighter and stronger than prior art hangers and may be produced more rapidly than such prior art hangers.Type: GrantFiled: January 12, 1988Date of Patent: September 12, 1989Assignee: Pro Plast Pty. LimitedInventor: Alexander Dongas
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Patent number: D334480Type: GrantFiled: July 16, 1991Date of Patent: April 6, 1993Assignee: Pro-Plast Pty. LimitedInventor: Alexander Dongas