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: 20040141920
    Abstract: 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) homologs. 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 1300 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 sonofluoresence tumor imaging, detection and therapy.
    Type: Application
    Filed: September 3, 2003
    Publication date: July 22, 2004
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel I. Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy
  • Patent number: 6761878
    Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: July 13, 2004
    Assignee: Mallinckrodt, Inc.
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph E. Bugaj
  • Patent number: 6747151
    Abstract: 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: Grant
    Filed: October 15, 2002
    Date of Patent: June 8, 2004
    Assignee: Mallinckrodt, Inc.
    Inventors: Raghavan Rajagopalan, Gary L. Cantrell, Joseph E. Bugaj, Samuel I. Achilefu, Richard B. Dorshow
  • Patent number: 6733744
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: May 11, 2004
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Publication number: 20040081622
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Application
    Filed: September 2, 2003
    Publication date: April 29, 2004
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj, Muthunadar P. Periasamy
  • Patent number: 6716413
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: April 6, 2004
    Assignee: Mallinckrodt, Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Patent number: 6706254
    Abstract: 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: Grant
    Filed: May 23, 2001
    Date of Patent: March 16, 2004
    Assignee: Mallinckrodt, Inc.
    Inventors: Samuel I. Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Patent number: 6673334
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: January 6, 2004
    Assignee: Mallinkcrodt, Inc.
    Inventors: Samuel Achilefu, Hermo N. Jimenez, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Patent number: 6669926
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: December 30, 2003
    Assignee: Mallinckrodt, Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Patent number: 6663847
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: December 16, 2003
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel Achilefu, Hermo N. Jimenez, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Patent number: 6656451
    Abstract: Highly hydrophilic indole and benzoindole derivatives that absorb and fluoresce in the visible region of light are disclosed. These compounds are useful for physiological and organ function monitoring. Particularly, the molecules of the invention are useful for optical diagnosis of renal and cardiac diseases and for estimation of blood volume in vivo.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: December 2, 2003
    Assignee: Mallinckrodt, Inc.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Patent number: 6641798
    Abstract: 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: Grant
    Filed: May 23, 2001
    Date of Patent: November 4, 2003
    Assignee: Mallinckrodt Inc.
    Inventors: Samuel I. Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Publication number: 20030185756
    Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
    Type: Application
    Filed: October 17, 2001
    Publication date: October 2, 2003
    Applicant: MALLINCKRODT INC
    Inventors: Samuel Achilefu, Richard B. Dorshow, Raghavan Rajagopalan, Joseph E. Bugaj
  • Publication number: 20030165432
    Abstract: Dye-peptide conjugates useful for diagnostic imaging and therapy are disclosed. The dye-peptide conjugates include several cyanine dyes with a variety of bis- and tetrakis(carboxylic acid) homologues. 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 350-1300 nm, the exact range being dependent upon the particular dye. Use of dimethylsulfoxide helps to maintain the fluorescence of the compounds. The molecules of the invention are useful for diagnostic imaging and therapy, in endoscopic applications for the detection of tumors and other abnormalities and for localized therapy, for photoacoustic tumor imaging, detection and therapy, and for sonofluorescence tumor imaging, detection and therapy.
    Type: Application
    Filed: January 9, 2001
    Publication date: September 4, 2003
    Inventors: Samuel I. Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Publication number: 20030158127
    Abstract: The present invention discloses novel sulfenate derivatives and their bioconjugates for phototherapy of tumors and other lesions. The sulfenates 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 free radicals, the reactive intermediate produced upon photofragmentation of the sulfenate moiety, with the tissue of interest.
    Type: Application
    Filed: July 3, 2001
    Publication date: August 21, 2003
    Applicant: MALLINCKRODT INC.
    Inventors: Raghavan Rajagopalan, Gary L. Cantrell, Samuel I. Achilefu, Joseph E. Bugaj, Richard B. Dorshow
  • Publication number: 20030152577
    Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues. A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
    Type: Application
    Filed: February 7, 2002
    Publication date: August 14, 2003
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Publication number: 20030143159
    Abstract: 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) homologues. 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 350-1300 nm, the exact range being dependent upon the particular dye. 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: Application
    Filed: January 9, 2001
    Publication date: July 31, 2003
    Applicant: Mallinckrodt Inc.
    Inventors: Samuel I. Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Publication number: 20030105299
    Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues. A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
    Type: Application
    Filed: October 17, 2001
    Publication date: June 5, 2003
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Raghavan Rajagopalan, Richard B. Dorshow, Joseph E. Bugaj
  • Publication number: 20030105300
    Abstract: Novel tumor specific phototherapeutic and photodiagnostic agents are disclosed. The compounds consist of a carbocyanine dye for visualization, photosensitizer for photodynamic treatment, and tumor receptor-avid peptide for site-specific delivery of the probe and phototoxic agent to diseased tissues. A combination of these elements takes full advantage of the unique and efficient properties of each component for an effective patient care management.
    Type: Application
    Filed: October 17, 2001
    Publication date: June 5, 2003
    Applicant: MALLINCKRODT INC.
    Inventors: Samuel Achilefu, Joseph E. Bugaj, Richard B. Dorshow, Raghavan Rajagopalan
  • Publication number: 20030072763
    Abstract: 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: Application
    Filed: October 15, 2002
    Publication date: April 17, 2003
    Applicant: Mallinckrodt Inc.
    Inventors: Raghavan Rajagopalan, Gary L. Cantrell, Joseph E. Bugaj, Samuel I. Achilefu, Richard B. Dorshow