Patents by Inventor Stephen Vitone

Stephen Vitone 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: 20080050843
    Abstract: Compounds of methamphetamine derivatives having a meta-substituted alkyl linker on the benzene ring and a protective group on the nitrogen of the methamphetamine hapten. Such compounds have the structure. wherein R1 is an alkyl linker comprising 2-15 carbon atoms and 0-6 heteroatoms, R2 is a leaving group, and R3 is a protecting group.
    Type: Application
    Filed: October 1, 2007
    Publication date: February 28, 2008
    Inventors: Raymond Hui, Stephen Vitone
  • Publication number: 20070122859
    Abstract: The present invention provides hapten derivatives useful for the preparation of antigens, antibodies and reagents for use in immunoassays for the detection of LSD and 2-oxo-3-hydroxy LSD. In the present invention, the 2-oxy LSD nucleus is derivatized out of the indole nitrogen to form an aminoalkyl derivative. The resulting haptens can then be further modified at this functionalized position for linking to appropriate immunogenic or labeling groups to provide reagents for immunoassays having substantially equal specificity for both LSD and 2-oxo-3-hydroxy-LSD.
    Type: Application
    Filed: December 14, 2006
    Publication date: May 31, 2007
    Inventors: Mitali Ghoshal, Stephen Vitone, Gerald Sigler, Alan McNally
  • Patent number: 7157560
    Abstract: The present invention provides hapten derivatives useful for the preparation of antigens, antibodies and reagents for use in immunoassays for the detection of LSD and 2-oxo-3-hydroxy LSD. In the present invention, the 2-oxy LSD nucleus is derivatized out of the indole nitrogen to form an aminoalkyl derivative. The resulting haptens can then be further modified at this functionalized position for linking to appropriate immunogenic or labeling groups to provide reagents for immunoassays having substantially equal specificity for both LSD and 2-oxo-3-hydroxy-LSD.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: January 2, 2007
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Mitali Ghoshal, Stephen Vitone, Gerald F. Sigler, Alan J. McNally
  • Patent number: 7101980
    Abstract: Compounds including haptens, intermediates, and immunogens that are useful in the production of antibodies specific for the methylenedioxy class of amphetamine derivatives are described. Antibodies specific for the methylenedioxy class of amphetamine derivatives, reagent kits containing antibodies specific for the methylenedioxy class of amphetamine derivatives, methods of producing antibodies specific for the methylenedioxy class of amphetamine derivatives, and methods of detecting analytes including members of the methylenedioxy class of amphetamine derivatives are also described.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: September 5, 2006
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Raymond A. Hui, Stephen Vitone, Richard Terry Root, Irina Baburina, Sheri Jordan
  • Publication number: 20060134711
    Abstract: Compounds of methamphetamine derivatives having a meta-substituted alkyl linker on the benzene ring and a protective group on the nitrogen of the methamphetamine hapten. Such compounds have the structure wherein R1 is an alkyl linker comprising 2-15 carbon atoms and 0-6 heteroatoms, R2 is a leaving group, and R3 is a protecting group.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 22, 2006
    Inventors: Raymond Hui, Stephen Vitone
  • Patent number: 6794496
    Abstract: The present invention provides hapten derivatives useful for the preparation of antigens, antibodies and reagents for use in immunoassays for the detection of LSD and 2-oxo-3-hydroxy LSD. In the present invention, the 2-oxy LSD nucleus is derivatized out of the indole nitrogen to form an aminoalkyl derivative. The resulting haptens can then be further modified at this functionalized position for linking to appropriate immunogenic or labeling groups to provide reagents for immunoassays having substantially equal specificity for both LSD and 2-oxo-3-hydroxy-LSD.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: September 21, 2004
    Assignee: Roche Diagnostics Corporation
    Inventors: Mitali Ghoshal, Stephen Vitone, Gerald F. Sigler, Alan J. McNally
  • Publication number: 20040077021
    Abstract: Compounds including haptens, intermediates, and immunogens that are useful in the production of antibodies specific for the methylenedioxy class of amphetamine derivatives are described. Antibodies specific for the methylenedioxy class of amphetamine derivatives, reagent kits containing antibodies specific for the methylenedioxy class of amphetamine derivatives, methods of producing antibodies specific for the methylenedioxy class of amphetamine derivatives, and methods of detecting analytes including members of the methylenedioxy class of amphetamine derivatives are also described.
    Type: Application
    Filed: July 18, 2003
    Publication date: April 22, 2004
    Applicant: Roche Diagnostics Corporation
    Inventors: Raymond A. Hui, Stephen Vitone, Richard Terry Root, Irina Baburina, Sheri Jordan
  • Publication number: 20030013131
    Abstract: The present invention provides hapten derivatives useful for the preparation of antigens, antibodies and reagents for use in immunoassays for the detection of LSD and 2-oxo-3-hydroxy LSD. In the present invention, the 2-oxy LSD nucleus is derivatized out of the indole nitrogen to form an aminoalkyl derivative. The resulting haptens can then be further modified at this functionalized position for linking to appropriate immunogenic or labeling groups to provide reagents for immunoassays having substantially equal specificity for both LSD and 2-oxo-3-hydroxy-LSD.
    Type: Application
    Filed: July 18, 2002
    Publication date: January 16, 2003
    Inventors: Mitali Ghoshal, Stephen Vitone, Gerald F. Sigler, Alan J. McNally
  • Patent number: 6368814
    Abstract: The present invention is directed to novel tricyclic antidepressant drug derivatives synthesized for covalent attachment to proteins or polypeptide antigens for use in the preparation of antibodies or receptors to tricyclic antidepressant drugs and tricyclic antidepressant metabolites. The new derivatives are characterized by a saturated double bond on the amitriptyline portion of the molecule and are represented by the structure where R1 is a saturated or unsaturated, substituted or unsubstituted, straight or branched chain of 0-10 carbon or heteroatoms, X is a linker group consisting of 0-2 substituted or unsubstituted aromatic rings, and Y is an activated ester or NH—Z, where Z is a poly(amino acid).
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: April 9, 2002
    Assignee: Roche Diagnostics Corporation
    Inventors: Mitali Ghoshal, Jane S. C. Tsai, Stephen Vitone
  • Publication number: 20010044118
    Abstract: The present invention provides hapten derivatives useful for the preparation of antigens, antibodies and reagents for use in immunoassays for the detection of LSD and 2-oxo-3-hydroxy LSD. In the present invention, the 2-oxy LSD nucleus is derivatized out of the indole nitrogen to form an aminoalkyl derivative. The resulting haptens can then be further modified at this functionalized position for linking to appropriate immunogenic or labeling groups to provide reagents for immunoassays having substantially equal specificity for both LSD and 2-oxo-3-hydroxy-LSD.
    Type: Application
    Filed: December 8, 2000
    Publication date: November 22, 2001
    Inventors: Mitali Ghoshal, Stephen Vitone, Gerald F. Sigler, Alan J. McNally
  • Patent number: 5618926
    Abstract: Novel reagents for the detection by immunoassay of drugs in body fluids, their preparation and use are disclosed. The reagents of the present invention correspond to the formulaP--[A--D].sub.nwhere:D is a drug derivative suitably selective for the determination of the presence of the target drug or drug metabolite,A is an activating linker-spacer group having an N-hydroxysuccinimide or isothiocyanate derived linking moiety,P is a poly(amino acid) or polymer capable of covalently bonding with A, andn is less than l.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: April 8, 1997
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Salvatore J. Salamone, Stephen Vitone