Patents by Inventor Joseph E. Bugaj
Joseph E. Bugaj 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: 20030036538Abstract: The present invention discloses dye-sulfenate derivatives and their bioconjugates for dual phototherapy of tumors and other lesions. The compounds of the present invention may contain either a mixture of Type 1 and Type 2 agents or a single entity that integrates both units in the same molecules. The compounds are designed to produce both Type 1 and Type 2 phototherapeutic effect at once using dual wavelength light source that will produce singlet oxygen and free radicals at the lesion of interest.Type: ApplicationFiled: July 3, 2001Publication date: February 20, 2003Applicant: MALLINCKRODT INC.Inventors: Raghavan Rajagopalan, Samuel I. Achilefu, Joseph E. Bugaj, Richard B. Dorshow
-
Publication number: 20030031627Abstract: Compositions and methods using internal image antibodies for photodiagnosis and/or phototherapy. The internal image antibodies are conjugated with a photoactive molecule such as a dye or photosensitizer, to target specific regions, such as biological receptors. The photoactive molecules are then activated for diagnosis or therapy. Advantageously, the internal image antibody is specific for a biological receptor, but does not require isolation of the receptor to prepare the antibody, and provides the desired specificity and selectivity for targeted diagnosis for therapy.Type: ApplicationFiled: July 31, 2001Publication date: February 13, 2003Applicant: MALLINCKRODT INC.Inventors: Raghavan Rajagopalan, Joseph E. Bugaj, Samuel I. Achilefu, Richard B. Dorshow
-
Publication number: 20030017164Abstract: The present invention discloses dye-azide derivatives and their bioconjugates for dual phototherapy of tumors and other lesions. The compounds of the present invention may contain either a mixture of Type 1 and Type 2 agents or a single entity that integrates both units in the same molecules. The compounds are designed to produce both Type 1 and Type 2 phototherapeutic effect at once using dual wavelength light source that will produce singlet oxygen and nitrene at the lesion of interest.Type: ApplicationFiled: July 3, 2001Publication date: January 23, 2003Applicant: MALLINCKRODT INC.Inventors: Raghavan Rajagopalan, Samuel I. Achilefu, Joseph E. Bugaj, Richard B. Dorshow
-
Patent number: 6485704Abstract: Novel azo compounds and their bioconjugates for phototherapy and/or photodiagnosis of tumors and other lesions. The azo derivatives of the present invention are designed to absorb at the low-energy ultraviolet, visible, or near-infrared (NIR) region of the electromagnetic spectrum. The phototherapeutic effect is caused by direct interaction of free radicals, the reactive intermediate produced upon photoexcitation of the azo compound, with the tissue of interest.Type: GrantFiled: May 4, 2001Date of Patent: November 26, 2002Assignee: Mallinckrodt Inc.Inventors: Raghavan Rajagopalan, Gary L. Cantrell, Joseph E. Bugaj, Samuel I. Achilefu, Richard B. Dorshow
-
Publication number: 20020169107Abstract: The present invention discloses novel aromatic azide derivatives and their bioconjugates for phototherapy of tumors and other lesions. The organic azides of the present invention are designed to absorb low-energy ultraviolet, visible, or near-infrared (NIR) region of the electromagnetic spectrum. The phototherapeutic effect is caused by direct interaction of nitrene, the reactive intermediate produced upon photoexcitation of the aromatic azide, with the tissue of interest. The compounds of the present invention are administered to a patient, allowed to accumulate at the site of the tumor or other lesion, and are exposed to light in order to perform a phototherapeutic procedure.Type: ApplicationFiled: January 19, 2001Publication date: November 14, 2002Applicant: Mallinckrodt Inc.Inventors: Raghavan Rajagopalan, Gary Cantrell, Samuel I. Achilefu, Joseph E. Bugaj, Richard B. Dorshow
-
Publication number: 20020164287Abstract: Novel azo compounds and their bioconjugates for phototherapy and/or photodiagnosis of tumors and other lesions. The azo derivatives of the present invention are designed to absorb at the low-energy ultraviolet, visible, or near-infrared (NIR) region of the electromagnetic spectrum. The phototherapeutic effect is caused by direct interaction of free radicals, the reactive intermediate produced upon photoexcitation of the azo compound, with the tissue of interest.Type: ApplicationFiled: May 4, 2001Publication date: November 7, 2002Applicant: MALLINCKRODT INC.Inventors: Raghavan Rajagopalan, Gary L. Cantrell, Joseph E. Bugaj, Samuel I. Achilefu, Richard B. Dorshow
-
Publication number: 20020156117Abstract: Cyanine dye bioconjugates useful for diagnostic imaging and therapy are disclosed. The conjugates include several cyanine dyes with a variety of bis- and tetrakis (carboxylic acid) homologes. The compounds may be conjugated to bioactive peptides, carbohydrates, hormones, drugs, or other bioactive agents. The small size of the compounds allows more favorable delivery to tumor cells as compared to larger molecular weight imaging agents. The various dyes are useful over the range of 350 to 1,300 nm, the exact range being dependent upon the particular dye. The use of dimethylsulfoxide helps to maintain the fluorescence of the compounds. The inventive compounds are useful for diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: ApplicationFiled: May 23, 2001Publication date: October 24, 2002Applicant: MALLINCKRODT INC.Inventors: Samuel I. Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 6423547Abstract: A composition comprising non-covalent carrier-hapten bioconjugates having the formula: HM-CM wherein HM is a hapten molecule whose molecular weight is generally, but not always, less than 1000 Daltons and is capable of performing specific functions; CM is a carrier molecule, whose molecular weight is generally, but not always, more than 1000 Daltons and is capable of transporting the hapten to a specific site; and the dashed line is a non-covalent bond between the carrier molecule and the hapten molecule. Preferably, the bioconjugates are formed from fluorescent dye haptens such as cyanine, indocyanine, squaraine, porphyrrins, Rose Bengal, and methylene blue dye and carrier molecules such as methylated serum albumin, polyarginine, polyaspartic acid, polyglutamic acid, cyclodextrin, and inulin. The bioconjugates are useful in diagnostic and therapeutic medical procedures because they are stable in vitro before being used and stable in vivo during and after use.Type: GrantFiled: September 21, 2000Date of Patent: July 23, 2002Assignee: Mallinckrodt Inc.Inventors: Raghavan Rajagopalan, Joseph E. Bugaj, Richard Bradley Dorshow, Samuel I. Achilefu
-
Patent number: 6395257Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing dyes as contrast agents. Novel cyanine dyes that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These dyes are useful for imaging, diagnosis and therapy of various diseased states. Particularly, the molecules of the invention are useful for optical diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: GrantFiled: January 18, 2000Date of Patent: May 28, 2002Assignee: Mallinckrodt Inc.Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Publication number: 20020044909Abstract: Cyanine dye bioconjugates useful for diagnostic imaging and therapy are disclosed. The conjugates include several cyanine dyes with a variety of bis- and tetrakis (carboxylic acid) homologes. The compounds may be conjugated to bioactive peptides, carbohydrates, hormones, drugs, or other bioactive agents. The small size of the compounds allows more favorable delivery to tumor cells as compared to larger molecular weight imaging agents. The various dyes are useful over the range of 350 to 1,300 nm, the exact range being dependent upon the particular dye. The use of dimethylsulfoxide helps to maintain the fluorescence of the compounds. The inventive compounds are useful for diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: ApplicationFiled: May 23, 2001Publication date: April 18, 2002Applicant: MALLINCKRODT INC.Inventors: Samuel I. Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 6280703Abstract: A method of measuring physiological function of a group of body cells, includes the step of selecting a detectable agent capable of absorbing or emitting a measurable electromagnetic emission. The agent is introduced into body fluid which contacts the group of body cells. The absorbance or emission is measured, and physiological function is determined based on measurement of the absorbance or emission. Measurements may be made noninvasively or with the use of a modified pulmonary artery catheter. Multiple agents which can be distinguished from each other can be utilized simultaneously to measure multiple physiological functions at the same time.Type: GrantFiled: March 6, 2000Date of Patent: August 28, 2001Assignee: Mallinckrodt Inc.Inventors: Arthur H. Combs, Richard B. Dorshow, Joseph E. Bugaj, Raghavan Rajagopalan, Samuel I. Achilefu
-
Patent number: 6277841Abstract: The present invention relates to novel ligands for forming metal complexes that absorb or fluoresce in the visible or near-infrared (NIR) region of the electromagnetic spectrum, new complexes incorporating such ligands, process for preparing such complexes, and methods of imaging or therapy using such agents. More particularly, the present invention specifically pertains to novel metal complexes derived from quinoline based heterocyclic N2O3, N3O3, N3O4, N3O5 and N2OS ligands, and are useful as general imaging, diagnostic, or therapeutic agents employing optical, nuclear medicine, or magnetic resonance procedures.Type: GrantFiled: March 2, 2000Date of Patent: August 21, 2001Assignee: Mallinckrodt Inc.Inventors: Raghavan Rajagopalan, Samuel I. Achilefu, Joseph E. Bugaj, Richard B. Dorshow
-
Patent number: 6264919Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing dyes as contrast agents. Novel indocyanine dyes that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These dyes are useful for imaging, diagnosis and therapy of various diseased states. Particularly, the molecules of the invention are useful for optical diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: GrantFiled: August 10, 2000Date of Patent: July 24, 2001Assignee: Mallinckrodt Inc.Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 6264920Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing dyes as contrast agents. Novel indocyanine dyes that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These dyes are useful for imaging, diagnosis and therapy of various diseased states. Particularly, the molecules of the invention are useful for optical diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: GrantFiled: August 10, 2000Date of Patent: July 24, 2001Assignee: Mallinckrodt Inc.Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 6190641Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing dyes as contrast agents. Novel indocyanine dyes that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These dyes are useful for imaging, diagnosis and therapy of various diseased states. Particularly, the molecules of the invention are useful for optical diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: GrantFiled: January 18, 2000Date of Patent: February 20, 2001Assignee: Mallinckrodt Inc.Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 6183726Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing dyes as contrast agents. Novel cyanine dyes that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These dyes are useful for imaging, diagnosis and therapy of various diseased states. Particularly, the molecules of the invention are useful for optical diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: GrantFiled: January 18, 2000Date of Patent: February 6, 2001Assignee: Mallinckrodt Inc.Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 6180087Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing dyes as contrast agents. Novel indocyanine dyes that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These dyes are useful for imaging, diagnosis and therapy of various diseased states. Particularly, the molecules of the invention are useful for optical diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: GrantFiled: January 18, 2000Date of Patent: January 30, 2001Assignee: Mallinckrodt Inc.Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 6180085Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing dyes as contrast agents. Novel cyanine dyes that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These dyes are useful for imaging, diagnosis and therapy of various diseased states. Particularly, the molecules of the invention are useful for optical diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: GrantFiled: January 18, 2000Date of Patent: January 30, 2001Assignee: Mallinckrodt Inc.Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 6180086Abstract: The sensitivity and specificity of the optical modality can be enhanced by the use of highly absorbing dyes as contrast agents. Novel cyanine dyes that absorb and emit light in the near infrared region of electromagnetic spectrum are disclosed. These dyes are useful for imaging, diagnosis and therapy of various diseased states. Particularly, the molecules of the invention are useful for optical diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities, for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.Type: GrantFiled: January 18, 2000Date of Patent: January 30, 2001Assignee: Mallinckrodt Inc.Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
-
Patent number: 5928625Abstract: A method of measuring physiological function of a group of body cells, includes the step of selecting a detectable agent capable of emitting a measurable electromagnetic emission. The agent is introduced into body fluid which contacts the group of body cells. The emission is measured, and physiological function is determined based on measurement of the emission.Type: GrantFiled: March 13, 1997Date of Patent: July 27, 1999Assignees: Mallinckrodt Inc., Washington UniversityInventors: Richard B. Dorshow, Joseph E. Bugaj, B. Daniel Burleigh, James R. Duncan, Michael Anthony Johnson, William B. Jones