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).
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Patent number: 7906629Abstract: 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: GrantFiled: January 31, 2007Date of Patent: March 15, 2011Assignee: Roche Diagnostics Operations, Inc.Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Erasmus Huber, Herbert W. Von Der Eltz
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Patent number: 7649085Abstract: 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: GrantFiled: May 26, 2006Date of Patent: January 19, 2010Assignee: Roche Diagnostics Operations, Inc.Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Richard Terry Root, Erasmus Huber, Herbert W. Von Der Eltz
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Ecstasy-class derivatives, immunogens, and antibodies and their use in detecting ecstasy-class drugs
Patent number: 7569676Abstract: 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: GrantFiled: March 9, 2005Date of Patent: August 4, 2009Assignee: Roche Diagnostics Operations, Inc.Inventors: Mitali Ghoshal, Gerald F. Sigler, Richard Terry Root, Anlonga Ouyang, Salvatore J. Salamone -
Patent number: 7569678Abstract: 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: GrantFiled: January 31, 2007Date of Patent: August 4, 2009Assignee: Roche Diagnostics Operations, Inc.Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Erasmus Huber, Herbert W. Von Der Eltz, Sigrun Metz, Peter Kern
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Patent number: 7566549Abstract: 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: GrantFiled: December 14, 2006Date of Patent: July 28, 2009Assignee: Roche Diagnostics Operations, Inc.Inventors: Mitali Ghoshal, Gerald F. Sigler, Alan J. McNally
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Patent number: 7482437Abstract: 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: GrantFiled: February 2, 2007Date of Patent: January 27, 2009Assignee: 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
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Patent number: 7465797Abstract: 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: GrantFiled: March 8, 2007Date of Patent: December 16, 2008Assignee: Roche Diagnostics Operations, Inc.Inventors: Mitali Ghoshal, Gerald F. Sigler, Richard Terry Root
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Publication number: 20080081379Abstract: 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: ApplicationFiled: July 3, 2007Publication date: April 3, 2008Inventors: Gerald F. Sigler, Mitali Ghoshal, Shaker Rashid, Yifei Wu, Allan R. Dorn, Jane S.C. Tsai
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Patent number: 7271252Abstract: 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: GrantFiled: April 22, 2003Date of Patent: September 18, 2007Assignee: Roche Diagnostics Operations, Inc.Inventors: Gerald F. Sigler, Mitali Ghoshal, Lili Arabshahi
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Patent number: 7238791Abstract: 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: GrantFiled: December 16, 2005Date of Patent: July 3, 2007Assignee: Roche Diagnostics Operations, Inc.Inventors: Mitali Ghoshal, Gerald F. Sigler
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Patent number: 7193065Abstract: 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: GrantFiled: September 24, 2003Date of Patent: March 20, 2007Assignee: 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
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Patent number: 7157560Abstract: 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: GrantFiled: July 18, 2002Date of Patent: January 2, 2007Assignee: Roche Diagnostics Operations, Inc.Inventors: Mitali Ghoshal, Stephen Vitone, Gerald F. Sigler, Alan J. McNally
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Ecstasy-class derivatives, immunogens, and antibodies and their use in detecting ecstasy-class drugs
Patent number: 7060847Abstract: 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: GrantFiled: July 18, 2003Date of Patent: June 13, 2006Assignee: Roche Diagnostics Operations, Inc.Inventors: Mitali Ghoshal, Gerald F. Sigler, Richard Terry Root, Anlonga Ouyang, Salvatore J. Salamone -
Patent number: 6992177Abstract: 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: GrantFiled: December 10, 2004Date of Patent: January 31, 2006Assignee: Roche Diagnostics Operations, Inc.Inventors: Raymond A. Hui, Gerald F. Sigler, Richard T. Root, Wei Yuan
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Publication number: 20040214251Abstract: 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: ApplicationFiled: April 22, 2003Publication date: October 28, 2004Inventors: Gerald F. Sigler, Mitali Ghoshal, Lili Arabshahi
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Patent number: 6794496Abstract: 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: GrantFiled: December 8, 2000Date of Patent: September 21, 2004Assignee: Roche Diagnostics CorporationInventors: Mitali Ghoshal, Stephen Vitone, Gerald F. Sigler, Alan J. McNally
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Publication number: 20040127689Abstract: 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: ApplicationFiled: September 24, 2003Publication date: July 1, 2004Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Richard Terry Root, Mitali Ghoshal, Erasmus Huber, Herbert W. Von Der Eltz, Sigrun Metz, Peter Kern
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Publication number: 20030100088Abstract: 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: ApplicationFiled: July 10, 2002Publication date: May 29, 2003Inventors: Gerald F. Sigler, Raymond A. Hui, Ina Deras, Richard Terry Root, Mitali Ghoshal, Erasmus J. Huber, Herbert W. Von Der Eltz, Sigrun Metz
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Publication number: 20030013131Abstract: 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: ApplicationFiled: July 18, 2002Publication date: January 16, 2003Inventors: Mitali Ghoshal, Stephen Vitone, Gerald F. Sigler, Alan J. McNally
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Publication number: 20020192703Abstract: 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: ApplicationFiled: March 2, 2001Publication date: December 19, 2002Applicant: Microgenics CorporationInventors: Gerald F. Sigler, Riaz Rouhani, David Davoudzadeh, William Coty, Jeffrey E. Shindelman, Paul R. Morrill