Patents by Inventor Joseph F. Krebs

Joseph F. Krebs 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: 11801489
    Abstract: A separation medium for removing small molecules from biomacromolecule in aqueous mixtures comprises gel filtration chromatography beads having a nominal protein fractional range of about 1000 Da to about 5000 Da and having an internal adsorbent matrix derived from a hydrophobicized scaffold. The gel filtration chromatography beads remove small molecules that are less than 1500 Da and have log Pow values greater than about ?0.5 from biomacromolecules in aqueous mixtures. Devices containing the separation medium are also provided.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: October 31, 2023
    Inventor: Joseph F. Krebs
  • Publication number: 20220305461
    Abstract: A separation medium for removing small molecules from biomacromolecule in aqueous mixtures comprises gel filtration chromatography beads having a nominal protein fractional range of about 1000 Da to about 5000 Da and having an internal adsorbent matrix derived from a hydrophobicized scaffold. The gel filtration chromatography beads remove small molecules that are less than 1500 Da and have log Pow values greater than about ?0.5 from biomacromolecules in aqueous mixtures. Devices containing the separation medium are also provided.
    Type: Application
    Filed: March 29, 2021
    Publication date: September 29, 2022
    Inventor: Joseph F. Krebs
  • Patent number: 10871484
    Abstract: Polyaromatic hydrocarbons (PAH) from industrial waste and oil spills are a recurrent threat to food safety due to their stability and toxicity. Existing methods to establish the concentrations of PAH in environmental and food samples rely on expensive and laborious methodology. The teachings herein provide methods and kits for detecting the presence or absence of PAH. In certain embodiments, the quantity of PAH in a sample can be determined.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: December 22, 2020
    Assignee: BIOO Scientific Corporation
    Inventors: Nicolas M. Kosa, Joseph F. Krebs, Darshan N. Kasal
  • Publication number: 20160054230
    Abstract: Polyaromatic hydrocarbons (PAH) from industrial waste and oil spills are a recurrent threat to food safety due to their stability and toxicity. Existing methods to establish the concentrations of PAH in environmental and food samples rely on expensive and laborious methodology. The teachings herein provide methods and kits for detecting the presence or absence of PAH. In certain embodiments, the quantity of PAH in a sample can be determined.
    Type: Application
    Filed: August 24, 2015
    Publication date: February 25, 2016
    Inventors: NICOLAS M. KOSA, JOSEPH F. KREBS, DARSHAN N. KASAL
  • Patent number: 9127301
    Abstract: Described herein is a rapid coupled enzymatic assay to detect polycyclic aromatic hydrocarbon (PAH) compounds in samples. The method uses a detection composition that includes: a buffered solution comprising NADH; naphthalene dioxygenase, naphthalene 1,2-dihydroxy-1,2-dihydronaphthalene dehydrogenase, and 1,2-dihydroxynaphthalene dioxygenase. The presence of PAH is determined by noting a color change of the detection composition, either visually or spectrophotometrically.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: September 8, 2015
    Assignee: BIOO SCIENTIFIC CORPORATION
    Inventors: Joseph F. Krebs, John Duvall-Jisha, Sol Resnick
  • Publication number: 20140170649
    Abstract: Provided is a sensitive method to specifically detect nucleic acid sequences using a combination of DNA replication based signal amplification (e.g., PCR) and lateral flow analyte detection. The disclosed method uses a dual-labeled DNA probe complementary to a region of the target DNA sequence. Cleavage of the probe, caused by the presence of the amplified DNA target, is detected using lateral flow methods.
    Type: Application
    Filed: September 27, 2013
    Publication date: June 19, 2014
    Applicant: BIOO SCIENTIFIC CORPORATION
    Inventors: Joseph F. Krebs, Paul Morrison, Marianna Goldrick
  • Publication number: 20140154723
    Abstract: Described herein is a rapid coupled enzymatic assay to detect polycyclic aromatic hydrocarbon (PAH) compounds in samples. The method uses a detection composition that includes: a buffered solution comprising NADH; naphthalene dioxygenase, naphthalene 1,2-dihydroxy-1,2-dihydronaphthalene dehydrogenase, and 1,2-dihydroxynaphthalene dioxygenase. The presence of PAH is determined by noting a color change of the detection composition, either visually or spectrophotometrically.
    Type: Application
    Filed: November 21, 2013
    Publication date: June 5, 2014
    Inventors: Joseph F. Krebs, John Duvall-Jisha, Sol Resnick
  • Publication number: 20140099656
    Abstract: Described herein is a rapid, semi-quantitative sampling device which may rapidly detect histamine in food, beverage and feed samples. The device uses an enzyme (impregnated in a sampling pad) to specifically convert histamine present in samples to a visual colorimetric signal. The color change of the pad is proportional to the amount of histamine present in the sample.
    Type: Application
    Filed: October 1, 2013
    Publication date: April 10, 2014
    Applicant: BIOO SCIENTIFIC CORPORATION
    Inventor: Joseph F. Krebs
  • Patent number: 7595173
    Abstract: The subject invention relates to a low cost method of producing peptides, including antimicrobial peptides (AMPs), by using microbes. The subject methods enable greatly improved yields of the peptide/AMP as compared to those heretofore known in the art. The subject methods also surprisingly enable the use of Pseudomonas fluorescens to produce AMPs and other peptides. There are several components of the subject invention, which can be used alone or in combination. The subject invention provides for the production of peptides/AMPs in concatemeric precursors. The subject invention also provides novel methods of assembling monomers into multimers, and of cleaving the multimers to yield active monomers. The subject invention also relates to the use of these multimers fused to carrier peptides to produce fusion proteins. Preferably, both the multimers and the fusion proteins (multimers with the carrier polypeptides) lack charge balancing.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: September 29, 2009
    Assignee: Dow Global Technologies Inc.
    Inventors: Joseph F. Krebs, Paul S. Zorner, Ian A. Tomlinson
  • Patent number: 6762045
    Abstract: Provided are isolated nucleic acids encoding a novel membrane derived caspase-3 and polypeptides expressed therefrom. In one embodiment, the nucleic acid expression vectors that produce membrane derived caspase-3 polypeptide may be introduced into host cells as a gene delivery vehicle. In other embodiments, methods are provided for treating pathological disorders caused by altered apoptosis, such as autoimmune disease, cancer, viral infections, and bacterial infections. Another aspect of the invention is the use of the isolated nucleic acid encoding membrane derived caspase-3 and polypeptides expressed therefrom as a means for promoting or inhibiting programmed cell death.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: July 13, 2004
    Assignee: Idun Pharmaceuticals, Inc.
    Inventors: Joseph F. Krebs, Anupama Srinivasan, Lawrence C. Fritz, Joe C. Wu
  • Publication number: 20020197702
    Abstract: Provided are isolated nucleic acids encoding a novel membrane derived caspase-3 and polypeptides expressed therefrom. In one embodiment, the nucleic acid expression vectors that produce membrane derived caspase-3 polypeptide may be introduced into host cells as a gene delivery vehicle. In other embodiments, methods are provided for treating pathological disorders caused by altered apoptosis, such as autoimmune disease, cancer, viral infections, and bacterial infections. Another aspect of the invention is the use of the isolated nucleic acid encoding membrane derived caspase-3 and polypeptides expressed therefrom as a means for promoting or inhibiting programmed cell death.
    Type: Application
    Filed: March 26, 2002
    Publication date: December 26, 2002
    Applicant: IDUN Pharmaceuticals, Inc.
    Inventors: Joseph F. Krebs, Anupama Srinivasan, Lawrence C. Fritz, Joe C. Wu
  • Publication number: 20020155579
    Abstract: Provided are isolated nucleic acids encoding a novel membrane derived caspase-3 and polypeptides expressed therefrom. In one embodiment, the nucleic acid expression vectors that produce membrane derived caspase-3 polypeptide may be introduced into host cells as a gene delivery vehicle. In other embodiments, methods are provided for treating pathological disorders caused by altered apoptosis, such as autoimmune disease, cancer, viral infections, and bacterial infections. Another aspect of the invention is the use of the isolated nucleic acid encoding membrane derived caspase-3 and polypeptides expressed therefrom as a means for promoting or inhibiting programmed cell death.
    Type: Application
    Filed: March 20, 2002
    Publication date: October 24, 2002
    Applicant: IDUN Pharmaceuticals, Inc.
    Inventors: Joseph F. Krebs, Anupama Srinivasan, Lawrence C. Fritz, Joe C. Wu
  • Publication number: 20020090666
    Abstract: Provided are methods for detecting membrane derived apoptotic activity. In one embodiment, the present invention provides methods for identifying membrane derived caspase activity. In other embodiments, drug discovery methods are provided for screening compounds that inhibit or enhance membrane derived caspase activity. In the various embodiments, heavy membrane fractions are utilized for the screening methodologies described herein.
    Type: Application
    Filed: January 8, 2002
    Publication date: July 11, 2002
    Applicant: Idun Pharmaceuticals, Inc.
    Inventors: Lawrence C. Fritz, Joseph F. Krebs
  • Patent number: 6391575
    Abstract: Provided are methods for detecting membrane derived apoptotic activity. In one embodiment, the present invention provides methods for identifying membrane derived caspase activity. In other embodiments, drug discovery methods are provided for screening compounds that inhibit or enhance membrane derived caspase activity. In the various embodiments, heavy membrane fractions are utilized for the screening methodologies described herein.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: May 21, 2002
    Assignee: IDUN Pharmaceuticals, Inc.
    Inventors: Lawrence C. Fritz, Joseph F. Krebs