Patents by Inventor Mark L. Nelson

Mark L. Nelson 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).

  • Patent number: 8119622
    Abstract: 7-phenyl-substituted tetracycline compounds which are substantially free of positional isomers, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7-phenyl-substituted tetracycline compounds are described. 7-substituted tetracycline compounds which are substantially free of positional isomers, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7-substituted tetracycline compounds are described.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: February 21, 2012
    Assignee: Trustees of Tufts College
    Inventors: Mark L. Nelson, Mohamed Y. Ismail
  • Patent number: 8106225
    Abstract: The present invention relates to novel chemistries which allow for heretofore unobtainable substituted tetracycline compounds which exhibit significant activity in tetracycline responsive states. The methods disclosed herein utilize reactive tetracycline-based precursor compounds, reactive organic substituent precursors and transition metal catalysts under conditions such that a tetracycline compound substituted with the desired organic substituent is formed. In one embodiment of the invention, a substituted tetracycline compound may be prepared by combining a reactive tetracycline-based precursor compound such as an arene tetracycline diazonium salt, and a reactive organic substituent precursor, e.g., alkenes, substituted alkenes, vinyl monomers, aromatics and heteroaromatics, in the presence of a transition metal catalyst, such as palladium chloride, under conditions such that a tetracycline compound substituted with the organic substituent is formed.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: January 31, 2012
    Assignee: Trustees of Tufts College
    Inventors: Mark L. Nelson, Glen Rennie, Darrell J. Koza
  • Patent number: 8101591
    Abstract: A compound of formula (I):
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: January 24, 2012
    Assignee: Paratek Pharmaceuticals, Inc.
    Inventors: Carmen Garcia-Luzon, Juan Carlos Cuevas, Jose M. Fiandor, Araceli Mallo, Mark L. Nelson, Roger Frechette
  • Patent number: 8088755
    Abstract: 11a,12-dehydrotetracycline compounds are described.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: January 3, 2012
    Assignee: Paratek Pharmaceuticals, Inc.
    Inventors: Joel Berniac, Mohamed Y. Ismail, Mark L. Nelson, Faye Seyedi
  • Patent number: 8088820
    Abstract: This invention provides a method for treating or preventing malaria in a subject. The method includes administering to the subject an effective amount of a substituted tetracycline compound, such that malaria is treated or prevented. In one aspect, the invention relates to pharmaceutical compositions which include an effective amount of a tetracycline compound to treat malaria in a subject and a pharmaceutically acceptable carrier. The substituted tetracycline compounds of the invention can be used to in combination with one or more anti-malarial compounds or can be used to treat or prevent malaria which is resistant to one or more other anti-malarial compounds.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: January 3, 2012
    Assignee: Paratek Pharmaceuticals, Inc.
    Inventors: Michael Draper, Mark L. Nelson
  • Patent number: 8071699
    Abstract: The invention is directed to a polymerization system and method of controlling resin properties during the production of bimodal and multimodal polymer compositions using at least one manipulated variable to minimize dynamic deviations from polymer characteristics. In particular embodiments, the method of control includes determining a property of the resin based on a current and/or previous values or estimates or process variables or polymer characteristics. In this manner the control actions serve to reduce process upsets or facilitate in transitioning to a new product or grade to reduce the amount of off-grade resin material produced during transition or during steady state manufacture.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: December 6, 2011
    Assignee: Union Carbide Chemicals & Plastics Technology LLC
    Inventors: John R. Parrish, Mark L. Nelson
  • Patent number: 8048867
    Abstract: The present invention pertains, at least in part, to novel 9-substituted minocycline compounds. These minocycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.
    Type: Grant
    Filed: May 4, 2004
    Date of Patent: November 1, 2011
    Assignees: Trustees of Tufts College, Paratek Pharmaceuticals, Inc.
    Inventors: Mark L. Nelson, Roger Frechette, Peter Viski, Mohamed Y. Ismail, Todd Bowser, Jimmy Dumornay, Glen Rennie, Gui Liu, Darrell J. Koza, Paul Sheahan, Karen Stapleton, Paul Hawkins, Beena Bhatia, Atul K. Verma, Laura McIntyre, Tadeusz Warchol, David Messersmith
  • Publication number: 20110257421
    Abstract: 7-substituted tetracycline compounds, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7-substituted tetracycline compounds are described.
    Type: Application
    Filed: June 30, 2011
    Publication date: October 20, 2011
    Applicant: Paratek Pharmaceuticals, Inc.
    Inventors: Mark L. Nelson, Darrell J. Koza
  • Publication number: 20110245501
    Abstract: The present invention relates to substituted tetracycline compounds and related methods for increasing the antifungal activity of an antifungal agent. The methods include administering to a subject an effective amount of a substituted tetracycline compound in combination with an antifungal agent such that the subject is treated for the fungal associated disorder.
    Type: Application
    Filed: June 14, 2011
    Publication date: October 6, 2011
    Applicant: Paratek Pharmaceuticals, Inc.
    Inventors: Michael Draper, Mark L. Nelson
  • Publication number: 20110218168
    Abstract: Disclosed are methods of treating bacterial infections including those caused by multidrug resistant bacteria using polyamine efflux pump inhibiting compounds, including for example N-benzylated polyazaalkanes, N-benzylated polyaminoalkanes, or mixed N-benzylated poly(aza/amino)alkanes, optionally in combination with other drugs such as antibiotics, as well as pharmaceutical compositions thereof.
    Type: Application
    Filed: September 29, 2010
    Publication date: September 8, 2011
    Applicant: Paratek Pharmaceuticals, Inc.
    Inventors: Mark L. Nelson, Michael N. Alekshun
  • Patent number: 8012951
    Abstract: 7-substituted tetracycline compounds, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7-substituted tetracycline compounds are described.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: September 6, 2011
    Assignee: Trustees of Tufts College
    Inventors: Mark L. Nelson, Darrell J. Koza
  • Publication number: 20110207951
    Abstract: 7-substituted fused ring tetracycline compounds, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7-substituted fused ring tetracycline compounds are described.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 25, 2011
    Applicant: Paratek Pharmaceuticals, Inc.
    Inventors: Mark L. Nelson, Laura Honeyman
  • Publication number: 20110207706
    Abstract: Methods for using tetracycline compounds for the treatment of spinal muscular atrophy are described.
    Type: Application
    Filed: May 3, 2011
    Publication date: August 25, 2011
    Applicant: Paratek Pharmaceuticals, Inc.
    Inventors: Joel Berniac, Todd Bowser, Michael Draper, Stuart B. Levy, Mark L. Nelson
  • Patent number: 7960366
    Abstract: Methods and compositions for treating for the synergistic treatment of fungal associated disorders are discussed.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: June 14, 2011
    Assignee: Paratek Pharmaceuticals, Inc.
    Inventors: Michael Draper, Mark L. Nelson
  • Publication number: 20110118215
    Abstract: 7, 8 and 9-substituted tetracycline compounds, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7, 8 and 9-substituted tetracycline compounds are described.
    Type: Application
    Filed: January 24, 2011
    Publication date: May 19, 2011
    Applicant: Trustees of Tufts College
    Inventors: Mark L. Nelson, Darrell J. Koza, Glen Rennie
  • Patent number: 7935687
    Abstract: Methods for using tetracycline compounds for the treatment of spinal muscular atrophy are described.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: May 3, 2011
    Assignee: Paratek Pharmaceuticals, Inc.
    Inventors: Joel Berniac, Todd Bowser, Michael Draper, Stuart B. Levy, Mark L. Nelson
  • Publication number: 20110092467
    Abstract: Substituted tetracycline compounds, methods of synthesis, and methods of use are discussed. Tetracyclines useful for treating tetracycline related disorders are also discussed. Intermediates useful for synthesizing other tetracycline compounds are also included.
    Type: Application
    Filed: December 22, 2010
    Publication date: April 21, 2011
    Applicants: Paratek Pharmaceuticals, Inc., Trustees of Tufts College
    Inventors: Mark L. Nelson, Stuart B. Levy, Roger Frechette, Todd Bowser, Mohamed Y. Ismail
  • Publication number: 20110086822
    Abstract: The present invention pertains, at least in part, to novel substituted tetracycline compounds. These tetracycline compounds can be used to treat numerous tetracycline compound-responsive states, such as bacterial infections and neoplasms, as well as other known applications for minocycline and tetracycline compounds in general, such as blocking tetracycline efflux and modulation of gene expression.
    Type: Application
    Filed: October 8, 2010
    Publication date: April 14, 2011
    Inventors: Mark L. Nelson, Kwasi Ohemeng, Roger Frechette, Paul Abato, Victor Amoo, Upul Bandarage, Joel Berniac, Beena Bhatia, Jackson Chen, Mohamed Y. Ismail, Oak Kim, Laura Honeyman, Rachid Mechiche, Andre Pearson, Laxma Reddy Nagavelli, Paul Sheahan, Atul K. Verma, Peter Viski, Tadeusz Warchol
  • Publication number: 20110086821
    Abstract: Methods and compositions for treating Cryptosporidium parvum related disorders in a mammal are discussed. Several novel tetracycline compounds useful for treating Cryptosporidium parvum related disorders are also included.
    Type: Application
    Filed: October 4, 2010
    Publication date: April 14, 2011
    Applicant: Trustees of Tufts College
    Inventors: Stuart B. Levy, Mark L. Nelson
  • Publication number: 20110082305
    Abstract: 7-phenyl-substituted tetracycline compounds, methods of treating tetracycline responsive states, and pharmaceutical compositions containing the 7-phenyl-substituted tetracycline compounds are described.
    Type: Application
    Filed: December 14, 2010
    Publication date: April 7, 2011
    Applicant: Trustees of Tufts College
    Inventors: Mark L. Nelson, Glen Rennie, Darrell Koza