Patents by Inventor Gerald F. Sigler

Gerald F. Sigler 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: 7906629
    Abstract: Activated haptens useful for generating immunogens to HIV protease inhibitors, immunogens useful for producing antibodies to HIV protease inhibitors, and antibodies and labeled conjugates useful in immunoassays for the HIV protease inhibitor saquinavir. The novel haptens feature an activated functionality at the central, non-terminal hydroxyl group. Also described are monoclonal antibodies specific for saquinavir having less than 10% cross-reactivity with lopinavir, nelfinavir, amprenavir, ritonavir, and indinavir, and a murine hybridoma producing said antibodies.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: March 15, 2011
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Erasmus Huber, Herbert W. Von Der Eltz
  • Patent number: 7649085
    Abstract: Activated haptens useful for generating immunogens to HIV protease inhibitors, immunogens useful for producing antibodies to HIV protease inhibitors, and antibodies and labeled conjugates useful in immunoassays for the HIV protease inhibitor saquinavir. The novel haptens feature an activated functionality at the central, non-terminal hydroxyl group. Also described are monoclonal antibodies specific for saquinavir having less than 10% cross-reactivity with lopinavir, nelfinavir, amprenavir, ritonavir, and indinavir, and a murine hybridoma producing said antibodies.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: January 19, 2010
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Richard Terry Root, Erasmus Huber, Herbert W. Von Der Eltz
  • Patent number: 7569678
    Abstract: Activated haptens useful for generating immunogens to HIV protease inhibitors, immunogens useful for producing antibodies to HIV protease inhibitors, and antibodies and labeled conjugates useful in immunoassays for the HIV protease inhibitor saquinavir. The novel haptens feature an activated functionality at the central, non-terminal hydroxyl group. Also described are monoclonal antibodies specific for saquinavir having less than 10% cross-reactivity with lopinavir, nelfinavir, amprenavir, ritonavir, and indinavir, and a murine hybridoma producing said antibodies.
    Type: Grant
    Filed: January 31, 2007
    Date of Patent: August 4, 2009
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Erasmus Huber, Herbert W. Von Der Eltz, Sigrun Metz, Peter Kern
  • Patent number: 7569676
    Abstract: The present invention comprises novel analogs of ecstasy-class compounds and novel ecstasy-class immunogens leashed out of, i.e., derived from, the methylenedioxy position. The invention also comprises unique monoclonal antibodies generated using MDO-leashed MDMA immunogens as well as unique conjugates and tracers. These antibodies, conjugates, and tracers are useful in immunoassays for the detection of ecstasy-class compounds in biological fluids.
    Type: Grant
    Filed: March 9, 2005
    Date of Patent: August 4, 2009
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Mitali Ghoshal, Gerald F. Sigler, Richard Terry Root, Anlonga Ouyang, Salvatore J. Salamone
  • Patent number: 7566549
    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 14, 2006
    Date of Patent: July 28, 2009
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Mitali Ghoshal, Gerald F. Sigler, Alan J. McNally
  • Patent number: 7482437
    Abstract: Activated haptens useful for generating immunogens to HIV protease inhibitors, immunogens useful for producing antibodies to HIV protease inhibitors, and antibodies and labeled conjugates useful in immunoassays for the HIV protease inhibitor saquinavir. The novel haptens feature an activated functionality at the central, non-terminal hydroxyl group. Also described are monoclonal antibodies specific for saquinavir having less than 10% cross-reactivity with lopinavir, nelfinavir, amprenavir, ritonavir, and indinavir, and a murine hybridoma producing said antibodies.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: January 27, 2009
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Richard Terry Root, Mitali Ghoshal, Erasmus Huber, Herbert W. Von Der Eltz, Sigrun Metz, Peter Kern
  • Patent number: 7465797
    Abstract: Analogs of 6-monoacetyl morphine (6-MAM) are described. These include analogs derivatized at either the C-3 position, the C-6 position, or the nor position of the molecule. These analogs allow for elaboration with linkers terminated by a functional group such as an activated ester, the functional groups being useful for attaching the molecule to other entities such as proteins, polysaccharides, and reporter groups.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: December 16, 2008
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Mitali Ghoshal, Gerald F. Sigler, Richard Terry Root
  • Publication number: 20080081379
    Abstract: A homogeneous, non-competitive, double receptor agglutination assay for measuring immunosuppressant drugs is described. The assay employs at least two receptors wherein each receptor is specific for a separate binding site on the drug and wherein each receptor is bound to a detection particle. The immunosuppressant drug binds to the receptors and causes particle agglutination, which can be measured and correlated with the presence or amount of immunosuppressant drug in a sample.
    Type: Application
    Filed: July 3, 2007
    Publication date: April 3, 2008
    Inventors: Gerald F. Sigler, Mitali Ghoshal, Shaker Rashid, Yifei Wu, Allan R. Dorn, Jane S.C. Tsai
  • Patent number: 7271252
    Abstract: The invention provides derivatives of efavirenz and methods of making derivatives of efavirenz. The derivatives include immunogenic compounds for producing antibodies to efavirenz and labeled efavirenz tracers. These compounds are useful in immunoassay methods for determining efavirenz.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: September 18, 2007
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Gerald F. Sigler, Mitali Ghoshal, Lili Arabshahi
  • Patent number: 7238791
    Abstract: Analogs of 6-monoacetyl morphine (6-MAM) are described. These include analogs derivatized at either the C-3 position, the C-6 position, or the nor position of the molecule. These analogs allow for elaboration with linkers terminated by a functional group such as an activated ester, the functional groups being useful for attaching the molecule to other entities such as proteins, polysaccharides, and reporter groups.
    Type: Grant
    Filed: December 16, 2005
    Date of Patent: July 3, 2007
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Mitali Ghoshal, Gerald F. Sigler
  • Patent number: 7193065
    Abstract: Activated haptens useful for generating immunogens to HIV protease inhibitors, immunogens useful for producing antibodies to HIV protease inhibitors, and antibodies and labeled conjugates useful in immunoassays for HIV protease inhibitors. The novel haptens feature an activated functionality at the central, non-terminal hydroxyl group common to all HIV protease inhibitors, e.g., saquinavir, nelfinavir, indinavir, amprenavir, ritonavir, lopinavir, and atazanavir.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: March 20, 2007
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Richard Terry Root, Mitali Ghoshal, Erasmus Huber, Herbert W. Von Der Eltz, Sigrun Metz, Peter Kern
  • 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: 7060847
    Abstract: The present invention comprises novel analogs of ecstasy-class compounds and novel ecstasy-class immunogens leashed out of, i.e., derived from, the methylenedioxy position. The invention also comprises unique monoclonal antibodies generated using MDO-leashed MDMA immunogens as well as unique conjugates and tracers. These antibodies, conjugates, and tracers are useful in immunoassays for the detection of ecstasy-class compounds in biological fluids.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: June 13, 2006
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Mitali Ghoshal, Gerald F. Sigler, Richard Terry Root, Anlonga Ouyang, Salvatore J. Salamone
  • Patent number: 6992177
    Abstract: Analogs of saquinavir functionalized at the quinoline portion of the molecule are described. These include pyridyl analogs (replacing the quinoline ring) with a functional handle out of the ring allowing for elaboration with linkers terminated by a functional group such as an activated ester which are useful for attaching the molecule to other entities such as proteins, polysaccharides, and the like. Analogs of saquinavir derivatized out of the quinoline ring are also described.
    Type: Grant
    Filed: December 10, 2004
    Date of Patent: January 31, 2006
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Raymond A. Hui, Gerald F. Sigler, Richard T. Root, Wei Yuan
  • Publication number: 20040214251
    Abstract: The invention provides derivatives of efavirenz and methods of making derivatives of efavirenz. The derivatives include immunogenic compounds for producing antibodies to efavirenz and labeled efavirenz tracers. These compounds are useful in immunoassay methods for determining efavirenz.
    Type: Application
    Filed: April 22, 2003
    Publication date: October 28, 2004
    Inventors: Gerald F. Sigler, Mitali Ghoshal, Lili Arabshahi
  • 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: 20040127689
    Abstract: Activated haptens useful for generating immunogens to HIV protease inhibitors, immunogens useful for producing antibodies to HIV protease inhibitors, and antibodies and labeled conjugates useful in immunoassays for HIV protease inhibitors. The novel haptens feature an activated functionality at the central, non-terminal hydroxyl group common to all HIV protease inhibitors, e.g., saquinavir, nelfinavir, indinavir, amprenavir, ritonavir, lopinavir, and atazanavir.
    Type: Application
    Filed: September 24, 2003
    Publication date: July 1, 2004
    Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Richard Terry Root, Mitali Ghoshal, Erasmus Huber, Herbert W. Von Der Eltz, Sigrun Metz, Peter Kern
  • Publication number: 20030100088
    Abstract: Activated haptens useful for generating immunogens to HIV protease inhibitors, immunogens useful for producing antibodies to HIV protease inhibitors, and antibodies and labeled conjugates useful in immunoassays for HIV protease inhibitors. The novel haptens feature an activated functionality at the central, non-terminal hydroxyl group common to all HIV protease inhibitors, e.g., saquinavir, nelfinavir, indinavir, amprenavir, ritonavir and lopinavir.
    Type: Application
    Filed: July 10, 2002
    Publication date: May 29, 2003
    Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Richard Terry Root, Mitali Ghoshal, Erasmus J. Huber, Herbert W. Von Der Eltz, Sigrun Metz
  • 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
  • Publication number: 20020192703
    Abstract: To detect LSD in biological samples, antibodies are raised to LSD conjugated to a protein carrier, preferably through the indole ring. Selected antibodies are matched with an immunoassay reagent in which the LSD is conjugated in the same position to a labeling or separation means. The set of reagents can be used in immunoassays with remarkably little cross-reactivity with potential interfering substances such a chlorpromazine and ergotamine, and a low false-positive rate in a panel of clinical test samples. Also provided is a set of reagents for measuring glucuronide metabolites of LSD by immunoassay, which permits exposure to LSD to be determined over a longer diagnostic window.
    Type: Application
    Filed: March 2, 2001
    Publication date: December 19, 2002
    Applicant: Microgenics Corporation
    Inventors: Gerald F. Sigler, Riaz Rouhani, David Davoudzadeh, William Coty, Jeffrey E. Shindelman, Paul R. Morrill