Patents by Inventor Brian H. Johnston

Brian H. Johnston 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: 20160115523
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Application
    Filed: August 25, 2015
    Publication date: April 28, 2016
    Inventors: Sergei A. KAZAKOV, Pavan KUMAR, Brian H. JOHNSTON
  • Publication number: 20150211046
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Application
    Filed: January 20, 2015
    Publication date: July 30, 2015
    Inventors: Sergei A. KAZAKOV, Pavan KUMAR, Brian H. JOHNSTON
  • Publication number: 20150152414
    Abstract: Aspects of the present invention include the production and use of chemically modified RNAi agents (e.g., shRNAs) in gene silencing applications. The chemically modified RNAi agents disclosed herein have reduced immunostimulatory activity, increased serum stability, or both, as compared to a corresponding RNAi agent not having the chemical modification. Compositions containing chemically modified RNAi agents according to aspects of the present invention (including pharmaceutical compositions) and kits containing the same are also provided.
    Type: Application
    Filed: October 3, 2014
    Publication date: June 4, 2015
    Inventors: Qing GE, Brian H. JOHNSTON, Mark A. BEHLKE, Heini ILVES, Anne DALLAS
  • Patent number: 8962253
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 24, 2015
    Assignee: Somagenics Inc.
    Inventors: Sergei A. Kazakov, Pavan Kumar, Brian H. Johnston
  • Patent number: 8871730
    Abstract: Aspects of the present invention include the production and use of chemically modified RNAi agents (e.g., shRNAs) in gene silencing applications. The chemically modified RNAi agents disclosed herein have reduced immunostimulatory activity, increased serum stability, or both, as compared to a corresponding RNAi agent not having the chemical modification. Compositions containing chemically modified RNAi agents according to aspects of the present invention (including pharmaceutical compositions) and kits containing the same are also provided.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: October 28, 2014
    Assignee: SomaGenics Inc.
    Inventors: Qing Ge, Brian H. Johnston, Mark A. Behlke, Heini Ilves, Anne Dallas
  • Patent number: 8779115
    Abstract: Methods, compositions, and kits that include small hairpin RNA (shRNA) useful for inhibition of gene expression, such as viral-mediated gene expression, are described.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: July 15, 2014
    Assignee: Somagenics Inc.
    Inventors: Qing Ge, Brian H. Johnston, Sergei A Kazakov, Heini Ilves, Anne Dallas
  • Patent number: 8426380
    Abstract: The invention provides methods, compositions, and kits comprising small interfering RNA (shRNA or siRNA) that are useful for inhibition of viral-mediated gene expression. Small interfering RNAs as described herein can be used in methods of treatment of HCV infection. ShRNA and siRNA constructs targetING the internal ribosome entry site (IRES) sequence of HCV are described.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: April 23, 2013
    Assignee: Somagenics, Inc.
    Inventors: Roger L. Kaspar, Heini Ilves, Attila A. Seyhan, Alexander V. Vlassov, Brian H. Johnston
  • Publication number: 20120329857
    Abstract: Methods, compositions, and kits that include small hairpin RNA (shRNA) useful for inhibition of gene expression, such as viral-mediated gene expression, are described.
    Type: Application
    Filed: August 22, 2012
    Publication date: December 27, 2012
    Inventors: Qing Ge, Brian H. Johnston, Sergei A. Kazakov, Heini Ilves, Anne Dallas
  • Patent number: 8283460
    Abstract: Methods, compositions, and kits that include small hairpin RNA (shRNA) useful for inhibition of gene expression, such as viral-mediated gene expression, are described.
    Type: Grant
    Filed: October 14, 2009
    Date of Patent: October 9, 2012
    Assignee: Somagenics, Inc.
    Inventors: Qing Ge, Brian H. Johnston, Sergei A. Kazakov, Heini Ilves, Anne Dallas
  • Publication number: 20120220033
    Abstract: The invention provides methods, compositions, and kits comprising small interfering RNA (shRNA or siRNA) that are useful for inhibition of viral-mediated gene expression. Small interfering RNAs as described herein can be used in methods of treatment of HCV infection. ShRNA and siRNA constructs targetING the internal ribosome entry site (IRES) sequence of HCV are described.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 30, 2012
    Inventors: ROGER L. KASPAR, HEINI ILVES, ATTILA A. SEYHAN, ALEXANDER V. VLASSOV, BRIAN H. JOHNSTON
  • Publication number: 20120164651
    Abstract: Currently, the circularization of small RNAs is broadly regarded as an obstacle in ligation-related assays and explicitly avoided while short lengths of linear RNA targets is broadly recognized as a factor limiting use of conventional primers in PCR-related assays. In contrast, the disclosed invention capitalizes on circularization of small RNA targets or their conjugates with oligonucleotide adapters. The circular RNA templates provide amplification of the target sequences via synthesis of multimer nucleic acids that can be either labeled for direct detection or subjected to PCR amplification and detection. Structure of small circular RNAs and corresponding multimeric nucleic acids provide certain advantages over current methods including flexibility in design of conventional RT and PCR primers as well as use of 5?-overlapping dimer-primers for efficient and sequence-specific amplification of short target sequences.
    Type: Application
    Filed: April 13, 2010
    Publication date: June 28, 2012
    Inventors: Sergei A. Kazakov, Pavan Kumar, Brian H. Johnston
  • Publication number: 20120165397
    Abstract: Aspects of the present invention include the production and use of chemically modified RNAi agents (e.g., shRNAs) in gene silencing applications. The chemically modified RNAi agents disclosed herein have reduced immunostimulatory activity, increased serum stability, or both, as compared to a corresponding RNAi agent not having the chemical modification. Compositions containing chemically modified RNAi agents according to aspects of the present invention (including pharmaceutical compositions) and kits containing the same are also provided.
    Type: Application
    Filed: July 13, 2010
    Publication date: June 28, 2012
    Inventors: Qing Ge, Brian H. Johnston, Mark A. Behlke, Heini Ilves, Anne Dallas
  • Publication number: 20110269816
    Abstract: The invention provides methods, compositions, and kits comprising small interfering RNA (shRNA or siRNA) that are useful for inhibition of viral-mediated gene expression. Small interfering RNAs as described herein can be used in methods of treatment of HCV infection. ShRNA and siRNA constructs targetING the internal ribosome entry site (IRES) sequence of HCV are described.
    Type: Application
    Filed: March 2, 2011
    Publication date: November 3, 2011
    Inventors: Roger L. Kaspar, Heini Ilves, Attila A. Seyhan, Alexander V. Vlassov, Brian H. Johnston
  • Patent number: 7902351
    Abstract: The invention provides methods, compositions, and kits comprising small interfering RNA (shRNA or siRNA) that are useful for inhibition of viral-mediated gene expression. Small interfering RNAs as described herein can be used in methods of treatment of HCV infection. ShRNA and siRNA constructs targetING the internal ribosome entry site (IRES) sequence of HCV are described.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: March 8, 2011
    Assignee: SomaGenics Inc.
    Inventors: Roger L. Kaspar, Heini Ilves, Attila A. Seyhan, Alexander V. Vlassov, Brian H. Johnston
  • Publication number: 20100112686
    Abstract: Methods, compositions, and kits that include small hairpin RNA (shRNA) useful for inhibition of gene expression, such as viral-mediated gene expression, are described.
    Type: Application
    Filed: October 14, 2009
    Publication date: May 6, 2010
    Inventors: Qing Ge, Brian H. Johnston, Sergei A. Kazakov, Heini Ilves, Anne Dallas
  • Publication number: 20090170794
    Abstract: The invention provides methods, compositions, and kits comprising small interfering RNA (shRNA or siRNA) which are useful for inhibition of viralmediated gene expression. Small interfering RNAs as described herein may be used in methods of treatment of HCV infection. ShRNA and siRNA constructs that target the internal ribosome entry site (IRES) sequence of HCV are described.
    Type: Application
    Filed: September 12, 2005
    Publication date: July 2, 2009
    Applicant: SomaGenics Inc.
    Inventors: Roger L. Kaspar, Heine Ilves, Attila A. Seyhan, Alexander V. Vlassov, Brian H. Johnston
  • Publication number: 20090170719
    Abstract: We describe new hybridization probes and methods for their use in detection, identification, and quantitation of polynucleotides such as RNA and DNA. Ordinary short oligonucleotide probes usually provide higher sequence-specificity but lower efficacy of hybridization than longer ordinary polynucleotide probes where both are fully complementary to the target polynucleotide. Our new polynucleotide probes combine the hybridization efficacy of long probes with the sequence-specificity of short probes. The polynucleotide probes contain a target binding domain and a binding enhancer domain, where the binding enhancer domain does not for stable structures under hybridizing conditions with the target binding domain or its corresponding target. These binding enhancer domains are able to improve the hybridization features of the target binding domain as well as the signal-to-noise ratio for target detection.
    Type: Application
    Filed: December 4, 2008
    Publication date: July 2, 2009
    Inventors: Sergei A. Kazakov, Anne Dallas, Brian H. Johnston
  • Patent number: 6887328
    Abstract: A method is described for splicing together overlapping ends of first and second lengths of photographic film strips of common film strip width, comprising positioning a bonding element between an overlapping end of the first length of photographic film and a corresponding overlapped end of the second length of photographic film, and heating the bonding element to effect an adhesive bond between such film ends, wherein the bonding element comprises an induction heating receptive support and thermoplastic adhesive layers on each side of the support, and wherein the heating of the bonding element is performed by induction heating. The present invention allows for the preparation of photographic film splices, consisting of either homogeneous or dissimilar film bases, using a bonding element and induction heating to provide smooth yet strong splices. In particular, the invention enables successful splicing of acetate support (e.g., cellulose triacetate (CTA)) based films and polyester support (e.g.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: May 3, 2005
    Assignee: Eastman Kodak Company
    Inventors: Thomas M. Smith, Brian H. Johnston, Narasimharao Dontula, Luba Kordovski
  • Patent number: 6063612
    Abstract: The present invention describes the generation of site-directed RNA cleaving agents. These agents consist of RNA-binding proteins, or polypeptides derived thereof, which are modified to contain a moiety capable of cleaving RNA backbones. Alternatively, the agents are oligonucleotides having nuclease resistant backbones to which a moiety capable of cleaving RNA backbones has been attached. The present invention also describes a method of cleaving target RNA substrates using the cleaving agents described herein. Further, the invention describes a method for inhibiting RNA virus expression in infected cells.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: May 16, 2000
    Assignee: SRI International
    Inventors: Sumedha D. Jayasena, Brian H. Johnston
  • Patent number: 5959120
    Abstract: The present invention provides an acetate ester compound of formula (III), ##STR1## a process for synthesizing compound (III), and a process for using that compound to prepare a pyrazolone compound, where the substituent definitions are as defined in the Summary of the Invention.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: September 28, 1999
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, Thomas E. Gompf, Brian H. Johnston