Patents by Inventor Sean M. Johnston

Sean M. 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: 20240131037
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans streptococci, Enterococcus, or combinations thereof.
    Type: Application
    Filed: August 27, 2023
    Publication date: April 25, 2024
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Publication number: 20230357135
    Abstract: The present invention provides omadacycline crystalline freebase and methods of synthesis thereof. The present invention also provides pharmaceutical compositions comprising omadacycline crystalline freebase and methods of use thereof for treating bacterial infections. The present invention also provides methods of purifying crude omadacycline freebase that comprise crystallization to produce crystalline omadacycline freebase. The omadacycline crystalline freebase may also be used to prepare salts of omadacycline, e.g., a tosylate salt.
    Type: Application
    Filed: June 11, 2021
    Publication date: November 9, 2023
    Inventors: Tadeusz Warchol, Sean M. Johnston
  • Publication number: 20210121483
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Application
    Filed: January 5, 2021
    Publication date: April 29, 2021
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Publication number: 20200289532
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Application
    Filed: January 17, 2020
    Publication date: September 17, 2020
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Publication number: 20200024223
    Abstract: A crystalline mono hydrochloride salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide is disclosed having improved stability. In addition, a crystalline mono mesylate salt and crystalline mono sulfate salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide are also disclosed having improved stability. A pharmaceutical composition containing the crystalline salts and methods of treating inflammatory skin disorders and bacterial infections comprising administering the crystalline salts are also disclosed.
    Type: Application
    Filed: May 15, 2019
    Publication date: January 23, 2020
    Inventors: Catherine COULTER, Sean M. JOHNSTON, Farzaneh SEYEDI
  • Publication number: 20190142850
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Application
    Filed: October 11, 2018
    Publication date: May 16, 2019
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Publication number: 20190040002
    Abstract: A crystalline mono hydrochloride salt of (4S,4aS,5aR, 12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1, 11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide is disclosed having improved stability. In addition, a crystalline mono mesylate salt and crystalline mono sulfate salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3, 10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1, 4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide are also disclosed having improved stability. A pharmaceutical composition containing the crystalline salts and methods of treating inflammatory skin disorders and bacterial infections comprising administering the crystalline salts are also disclosed.
    Type: Application
    Filed: March 6, 2018
    Publication date: February 7, 2019
    Inventors: Catherine COULTER, Sean M. JOHNSTON, Farzaneh SEYEDI
  • Patent number: 10124014
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 13, 2018
    Assignee: Paratek Pharmaceuticals, Inc.
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Publication number: 20180015108
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 18, 2018
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Patent number: 9724358
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: August 8, 2017
    Assignee: Paratek Pharmaceuticals, Inc.
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Publication number: 20170158616
    Abstract: Methods for the synthesis and purification of 9-amino alkyl tetracycline compounds are described.
    Type: Application
    Filed: July 13, 2016
    Publication date: June 8, 2017
    Applicant: Paratek Pharmaceuticals, Inc.
    Inventors: Sean M. Johnston, Tadeusz Warchol
  • Publication number: 20160279151
    Abstract: Injectable and oral formulations of a tetracycline compound are described. In one embodiment, the invention pertains to an oral formulation of a 9-aminomethyl tetracycline compound, or a salt thereof, in tablet form or capsule. The formulations may be used, for example, to treat infections.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 29, 2016
    Inventor: Sean M. Johnston
  • Publication number: 20160228459
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Application
    Filed: February 2, 2016
    Publication date: August 11, 2016
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Publication number: 20160200671
    Abstract: A crystalline mono hydrochloride salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide is disclosed having improved stability. In addition, a crystalline mono mesylate salt and crystalline mono sulfate salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide are also disclosed having improved stability. A pharmaceutical composition containing the crystalline salts and methods of treating inflammatory skin disorders and bacterial infections comprising administering the crystalline salts are also disclosed.
    Type: Application
    Filed: December 18, 2015
    Publication date: July 14, 2016
    Inventors: Catherine COULTER, Sean M. JOHNSTON, Farzaneh SEYEDI
  • Patent number: 9265740
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: February 23, 2016
    Assignee: Paratek Pharmaceuticals, Inc.-124418
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Patent number: 9255068
    Abstract: A crystalline mono hydrochloride salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide is disclosed having improved stability. In addition, a crystalline mono mesylate salt and crystalline mono sulfate salt of (4S,4aS,5aR,12aS)-4-dimethylamino-3,10,12,12a-tetrahydroxy-7-[(methoxy(methyl)amino)-methyl]-1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydro-naphthacene-2-carboxylic acid amide are also disclosed having improved stability. A pharmaceutical composition containing the crystalline salts and methods of treating inflammatory skin disorders and bacterial infections comprising administering the crystalline salts are also disclosed.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: February 9, 2016
    Assignees: Warner Chilcott Company, LLC, Paratek Pharmaceuticals, Inc.
    Inventors: Catherine Coulter, Sean M. Johnston, Farzaneh Seyedi
  • Publication number: 20160030453
    Abstract: Methods for increasing the oral bioavailability of tetracycline compounds are described.
    Type: Application
    Filed: July 1, 2015
    Publication date: February 4, 2016
    Inventors: Michael N. Alekshun, Adel Bakhtyari, Sean M. Johnston, Masha Pukshansky
  • Publication number: 20150087711
    Abstract: Methods and compositions for using a tetracycline compound to treat bacterial infections are described. In one embodiment, for example, the invention provides a method of treating a subject for an infection, comprising administering to said subject an effective amount of 9-[(2,2-dimethyl-propyl amino)-methyl]-minocycline or a salt thereof, such that said subject is treated, wherein said infection is selected from the group consisting of MSSA, MRSA, B-streptococci, Viridans Streptococci, Enterococcus, or combinations thereof.
    Type: Application
    Filed: April 22, 2014
    Publication date: March 26, 2015
    Applicant: Paratek Pharmaceuticals, Inc.- 124418
    Inventors: Sean M. Johnston, Robert D. Arbeit, Thomas J. Bigger, Dennis P. Molnar, S. Ken Tanaka
  • Patent number: 8946196
    Abstract: Methods for the synthesis and purification of 9-amino alkyl tetracycline compounds are described.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: February 3, 2015
    Assignee: Paratek Pharmaceuticals, Inc.
    Inventors: Sean M. Johnston, Tadeusz Warchol
  • Publication number: 20140031319
    Abstract: Methods for the synthesis and purification of 9-amino alkyl tetracycline compounds are described.
    Type: Application
    Filed: September 30, 2013
    Publication date: January 30, 2014
    Applicant: PARATEK PHARMACEUTICALS, INC.
    Inventors: Sean M. Johnston, Tadeusz Warchol