Patents by Inventor Kenneth Noel Keavey

Kenneth Noel Keavey 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).

  • Antibacterial Agents
    Publication number: 20100125075
    Abstract: Compounds of formula (II) are antibacterial agents wherein Q represents a radical of the formula: —N(OH)CH(?O) or the formula: —C(?O)NH(OH); R1 represents hydrogen, C1-C6 alkyl or C1-C6 alkyl substituted by one or more halogen atoms, or, except when Q is a radical of the formula: —N(OH)CH(?O), a hydroxy, C1-C6 alkoxy, C1-C6 alkenyloxy, amino, C1-C6 alkylamino, or di-(C1-C6 alkylamino group; R2 represents a substituted or unsubstituted C1-C6 alkyl, cycloalkyl(C1-C6 alkyl)- or aryl(C1-C6 alkyl)-group; and A represents a group of formula (IIA), or (IIB) wherein R4 represents the side chain of a natural or non-natural alpha amino acid, and R5 and R6 when taken together with the nitrogen atom to which they are attached form a saturated heterocyclic first ring of 5 to 7 atoms as specified in the description.
    Type: Application
    Filed: December 14, 2006
    Publication date: May 20, 2010
    Applicant: British Biotech Pharmaceuticals Ltd.
    Inventors: Lisa Marie Pratt, Kenneth Noel Keavey, Gilles Denis Pain, Laurent Mounier
  • Antibacterial agents
    Patent number: 7186719
    Abstract: Compounds of formula (II) are antibacterial agents wherein Q represents a radical of the formula: —N(OH)CH(?O) or the formula: —C(?O)NH(OH); R1 represents hydrogen, C1–C6 alkyl or C1–C6 alkyl substituted by one or more halogen atoms, or, except when Q is a radical of the formula: —N(OH)CH(?O), a hydroxy, C1–C6 alkoxy, C1–C6 alkenyloxy, amino, C1–C6 alkylamino, or di-(C1–C6 alkyl)amino group; R2 represents a substituted or unsubstituted C1–C6 alkyl, cycloalkyl(C1–C6 alkyl)- or aryl(C1–C6 alkyl)-group; and A represents a group of formula (IIA), or (IIB) wherein R4 represents the side chain of a natural or non-natural alpha amino acid, and R5 and R6 when taken together with the nitrogen atom to which they are attached form a saturated heterocyclic first ring of 5 to 7 atoms as specified in the description.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: March 6, 2007
    Assignee: British Biotech Pharmaceuticals
    Inventors: Lisa Marie Pratt, Kenneth Noel Keavey, Gilles Denis Pain, Laurent Mounier
  • Antibacterial agents
    Patent number: 6846825
    Abstract: Compounds of formula (II) are antibacterial agents wherein Q represents a radical of the formula: —N(OH)CH(?O) or the formula: —C(?O)NH(OH); R1 represents hydrogen, C1-C6 alkyl or C1-C6 alkyl substituted by one or more halogen atoms, or, except when Q is a radical of the formula: —N(OH)CH(?O), a hydroxy, C1-C6 alkoxy, C1-C4 alkenyloxy, amino, C1-C4 alkylamino, or di-(C1-C6 alkyl)amino group; R2 represents a substituted or unsubstituted C1-C6 alkyl, cycloalkyl(C1-C6 alkyl)- or aryl(C1-C6 alkyl)-group; and A represents a group of formula (IIA), or (IIB) wherein R4 represents the side chain of a natural or non-natural alpha amino acid, and R5 and R6 when taken together with the nitrogen atom to which they are attached form a saturated heterocyclic first ring of 5 to 7 atoms as specified in the description.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: January 25, 2005
    Assignee: British Biotech Pharmaceuticals Limited
    Inventors: Lisa Marie Pratt, Kenneth Noel Keavey, Gilles Denis Pain, Laurent Mounier