Patents by Inventor Steven E. Cwirla
Steven E. Cwirla 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: 7553617Abstract: Peptides which bind to selected receptor molecules are identified by screening libraries which encode a random or controlled collection of amino acids. Peptides encoded by the libraries are expressed as fusion proteins of bacteriophage coat proteins, and bacteriophage particles are then screened against the receptors of interest. Peptides having a wide variety of uses, such as therapeutic or diagnostic reagents, may thus be identified without any prior information on the structure of the expected ligand or receptor molecule.Type: GrantFiled: August 28, 2000Date of Patent: June 30, 2009Assignee: Affymax, Inc.Inventors: William J. Dower, Steven E. Cwirla
-
Patent number: 7534574Abstract: Reagents and methods for detecting target proteins in a sample are provided. The reagents include a replicable genetic package, a protein displayed on an exterior surface of the package that is expressed from a heterologous nucleic acid borne by the package, and one or more antibodies complexed with the expressed protein and which have an open binding site for a target protein. Thus, a segment of the nucleic acid encodes for an epitope that is shared by the expressed polypeptide and the target protein. The reagents can be utilized individually or as part of a library or an array to bind target proteins within protein samples to form one or more complexes. By determining the sequence of the segment of the heterologous nucleic acid of a package within a complex, one can identify the target protein since the segment encodes for an epitope that is shared by the expressed and target proteins.Type: GrantFiled: January 8, 2007Date of Patent: May 19, 2009Assignee: XenoPort, Inc.Inventors: William J. Dower, Steven E. Cwirla
-
Patent number: 7517643Abstract: Replicable genetic packages and collections thereof that display various compounds are provided. In some instances, the replicable genetic packages include nucleic acid tags that serve to record a characteristic of the compound or compounds that are attached to the replicable genetic package. The invention further provides a number of different methods for using the replicable genetic packages to screen a library of compounds for a desired biological activity.Type: GrantFiled: July 22, 2005Date of Patent: April 14, 2009Assignee: XenoPort, Inc.Inventors: Ronald W. Barrett, William J. Dower, Mark Gallop, Thomas F. Woiwode, Steven E. Cwirla
-
Patent number: 7229757Abstract: Icosahedral phage and collections thereof that display various compounds are provided. In some instances, the icosahedral phage include nucleic acid tags that serve to record a characteristic of the compound or compounds that are attached to the phage. A number of different methods for using the icosahedral phage to screen a library of compounds for a desired biological activity are also provided, especially assays for compounds that are substrates for receptor-mediated transport processes such as endocytosis and transcytosis.Type: GrantFiled: March 21, 2002Date of Patent: June 12, 2007Assignee: Xenoport, Inc.Inventors: Ronald W. Barrett, William J. Dower, Mark Gallop, Thomas F. Woiwode, Steven E. Cwirla
-
Patent number: 7192720Abstract: Reagents and methods for detecting target proteins in a sample are provided. The reagents include a replicable genetic package, a protein displayed on an exterior surface of the package that is expressed from a heterologous nucleic acid borne by the package, and one or more antibodies complexed with the expressed protein and which have an open binding site for a target protein. Thus, a segment of the nucleic acid encodes for an epitope that is shared by the expressed polypeptide and the target protein. The reagents can be utilized individually or as part of a library or an array to bind target proteins within protein samples to form one or more complexes. By determining the sequence of the segment of the heterologous nucleic acid of a package within a complex, one can identify the target protein since the segment encodes for an epitope that is shared by the expressed and target proteins.Type: GrantFiled: July 27, 2004Date of Patent: March 20, 2007Assignee: XenoPort, Inc.Inventors: William J. Dower, Steven E. Cwirla
-
Patent number: 7091311Abstract: Described are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: GrantFiled: February 27, 2002Date of Patent: August 15, 2006Assignee: SmithKline Beecham CorporationInventors: William J. Dower, Ronald W. Barrett, Steven E. Cwirla, David J. Duffin, Christian M. Gates, Sherril S. Haselden, Larry C. Mattheakis, Peter J. Schatz, Christopher R. Wagstrom, Nicholas C. Wrighton
-
Patent number: 7037706Abstract: Replicable genetic packages and collections thereof that display various compounds are provided. In some instances, the replicable genetic packages include nucleic acid tags that serve to record a characteristic of the compound or compounds that are attached to the replicable genetic package. The invention further provides a number of different methods for using the replicable genetic packages to screen a library of compounds for a desired biological activity.Type: GrantFiled: September 29, 2000Date of Patent: May 2, 2006Assignee: Xenoport, Inc.Inventors: Ronald W. Barrett, William J. Dower, Mark Gallop, Thomas F. Woiwode, Steven E. Cwirla
-
Patent number: 6777239Abstract: Reagents and methods for detecting target proteins in a sample are provided. The reagents include a replicable genetic package, a protein displayed on an exterior surface of the package that is expressed from a heterologous nucleic acid borne by the package, and one or more antibodies complexed with the expressed protein and which have an open binding site for a target protein. Thus, a segment of the nucleic acid encodes for an epitope that is shared by the expressed polypeptide and the target protein. The reagents can be utilized individually or as part of a library or an array to bind target proteins within protein samples to form one or more complexes. By determining the sequence of the segment of the heterologous nucleic acid of a package within a complex, one can identify the target protein since the segment encodes for an epitope that is shared by the expressed and target proteins.Type: GrantFiled: April 17, 2002Date of Patent: August 17, 2004Assignee: XenoPort, Inc.Inventors: William J. Dower, Steven E. Cwirla
-
Patent number: 6716811Abstract: Novel compounds are provided that bind to G-CSFR. The novel compounds have a peptide chain approximately 6 to 40 amino acids in length that binds to G-CSFR. The compounds are useful as probes for affinity screening. In addition, the compounds have demonstrated agonist or antagonist activity for the G-CSFR, and are therefore useful in treatment of diseases including patients who suffer from a low white blood cell titer. Pharmaceutical compositions and methods of use are provided as well.Type: GrantFiled: July 20, 2000Date of Patent: April 6, 2004Assignee: Affymax, Inc.Inventors: Steven E. Cwirla, Palani Balu, David J. Duffin, Sunila Piplani, Barbara McEowen Merrill, Peter J. Schatz
-
Publication number: 20030158116Abstract: Described are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: ApplicationFiled: February 27, 2002Publication date: August 21, 2003Inventors: William J. Dower, Ronald W. Barrett, Steven E. Cwirla, David J. Duffin, Christian M. Gates, Sherril S. Haselden, Larry C. Mattheakis, Peter J. Schatz, Christopher R. Wagstrom, Nicholas C. Wrighton
-
Patent number: 6506362Abstract: Described are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: GrantFiled: April 10, 2001Date of Patent: January 14, 2003Assignee: Glaxo Group LimitedInventors: William J. Dower, Ronald W. Barrett, Steven E. Cwirla, Christian M. Gates, Peter J. Schatz, Palaniappan Balasubramanian, Christopher R. Wagstrom, Richard Wayne Hendren, Randolph B. Deprince, Surekha Podduturi, Qun Yin
-
Publication number: 20020192690Abstract: Reagents and methods for detecting target proteins in a sample are provided. The reagents include a replicable genetic package, a protein displayed on an exterior surface of the package that is expressed from a heterologous nucleic acid borne by the package, and one or more antibodies complexed with the expressed protein and which have an open binding site for a target protein. Thus, a segment of the nucleic acid encodes for an epitope that is shared by the expressed polypeptide and the target protein. The reagents can be utilized individually or as part of a library or an array to bind target proteins within protein samples to form one or more complexes. By determining the sequence of the segment of the heterologous nucleic acid of a package within a complex, one can identify the target protein since the segment encodes for an epitope that is shared by the expressed and target proteins.Type: ApplicationFiled: April 17, 2002Publication date: December 19, 2002Applicant: XenoPortInventors: William J. Dower, Steven E. Cwirla
-
Patent number: 6465430Abstract: Receptors are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: GrantFiled: April 13, 2000Date of Patent: October 15, 2002Assignee: SmithKline Beecham CorporationInventors: William J. Dower, Ronald W. Barrett, Steven E. Cwirla, David J. Duffin, Christian M. Gates, Sherril S. Haselden, Larry C. Mattheakis, Peter J. Schatz, Christopher R. Wagstrom, Nicholas C. Wrighton
-
Patent number: 6251864Abstract: Described are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: GrantFiled: March 1, 2000Date of Patent: June 26, 2001Assignee: Glaxo Group LimitedInventors: William J. Dower, Ronald W. Barrett, Steven E. Cwirla, Christian M. Gates, Peter J. Schatz, Palaniappan Balasubramanian, Christopher R. Wagstrom, Richard Wayne Hendren, Randolph B. Deprince, Surekha Podduturi, Qun Yin
-
Patent number: 6121238Abstract: Described are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: GrantFiled: February 3, 1999Date of Patent: September 19, 2000Assignee: Glaxo Wellcome Inc.Inventors: William J. Dower, Ronald W. Barrett, Steven E. Cwirla, Christian M. Gates, Peter J. Schatz, Palaniappan Balasubramanian, Christopher R. Wagstrom, Richard Wayne Hendren, Randolph B. Deprince, Surekha Podduturi, Qun Yin
-
Patent number: 6083913Abstract: Receptors are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: GrantFiled: December 4, 1997Date of Patent: July 4, 2000Assignee: Glaxo Wellcome Inc.Inventors: William J. Dower, Ronald W. Barrett, Steven E. Cwirla, David J. Duffin, Christian M. Gates, Sherril S. Haselden, Larry C. Mattheakis, Peter J. Schatz, Christopher R. Wagstrom, Nicholas C. Wrighton
-
Patent number: 5932546Abstract: Described are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: GrantFiled: October 4, 1996Date of Patent: August 3, 1999Assignee: Glaxo Wellcome Inc.Inventors: Ronald W. Barrett, William J. Dower, Steven E. Cwirla, Sherril S. Johnson, Nicholas C. Wrighton, David J. Duffin, Christopher R. Wagstrom
-
Patent number: 5869451Abstract: Described are peptides and peptide mimetics that bind to and activate the thrombopoietin receptor. Such peptides and peptide mimetics are useful in methods for treating hematological disorders and particularly, thrombocytopenia resulting from chemotherapy, radiation therapy, or bone marrow transfusions as well as in diagnostic methods employing labeled peptides and peptide mimetics.Type: GrantFiled: December 11, 1996Date of Patent: February 9, 1999Assignee: Glaxo Group LimitedInventors: William J. Dower, Ronald W. Barrett, Steven E. Cwirla, Christian M. Gates, Peter J. Schatz, Palaniappan Balasubramanian, Christopher R. Wagstrom, Richard Wayne Hendren, Randoph B. DePrince, Surekha Podduturi, Qun Yin
-
Patent number: 5786322Abstract: Disclosed are peptides and peptide mimetics that bind selectins, including endothelial leukocyte adhesion molecule 1 (ELAM-1). Such peptides and peptide mimetics are useful in methods for blocking adhesion of leukocytes to the selectins for the purpose of inhibiting inflammation as well as in diagnostic methods employing labeled peptides and peptide mimetics that bind selectins for the purpose of determining the site of inflammation in mammals which inflammation is mediated by the presence of one or more selectins.Type: GrantFiled: June 7, 1995Date of Patent: July 28, 1998Assignee: Affymax Technologies N.V.Inventors: Ronald W. Barrett, Steven E. Cwirla, William J. Dower, Kerry J. Koller, Jung Lee, Christine L. Martens, Beatrice Ruhland-Fritsch
-
Patent number: 5728802Abstract: Disclosed are peptides and peptide mimetics that bind selectins, including endothelial leukocyte adhesion molecule 1 (ELAM-1). Such peptides and peptide mimetics are useful in methods for blocking adhesion of leukocytes to the selectins for the purpose of inhibiting inflammation as well as in diagnostic methods employing labeled peptides and peptide mimetics that bind selectins for the purpose of determining the site of inflammation in mammals which inflammation is mediated by the presence of one or more selectins.Type: GrantFiled: May 12, 1995Date of Patent: March 17, 1998Assignee: Affymax Technologies N.V.Inventors: Ronald W. Barrett, Steven E. Cwirla, William J. Dower, Kerry J. Koller, Jung Lee, Christine L. Martens, Beatrice Ruhland