Patents by Inventor James M. Tiedje

James M. Tiedje 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: 10645886
    Abstract: The disclosure relates to a plant growth apparatus and related system to grow and maintain plants under controlled biotic conditions, for example to grow axenic (microbe-free) plants, gnotobiotic (defined microbiota) plants, and holoxenic (complex, or undefined microbiota) plants. This system allows aseptic bottom irrigation with water, soluble nutrients, chemicals, and/or microbiota. Plants can be inverted for dipping and/or vacuum infiltration. The system also allows for passive (gravity) drainage, thereby allowing for gas exchange and preventing root anoxia. A variety of plant growth substrates can be used within the plant growth apparatus as a plant growth medium. The plant growth apparatus, containing the growth substrate medium, can be completely flushed via the drainage port to remove potential toxic byproducts of the sterilization processes. The entire system is suitably constructed using autoclavable material.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: May 12, 2020
    Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY
    Inventors: James Kremer, James M. Tiedje, Sheng-Yang He
  • Publication number: 20170215351
    Abstract: The disclosure relates to a plant growth apparatus and related system to grow and maintain plants under controlled biotic conditions, for example to grow axenic (microbe-free) plants, gnotobiotic (defined microbiota) plants, and holoxenic (complex, or undefined microbiota) plants. This system allows aseptic bottom irrigation with water, soluble nutrients, chemicals, and/or microbiota. Plants can be inverted for dipping and/or vacuum infiltration. The system also allows for passive (gravity) drainage, thereby allowing for gas exchange and preventing root anoxia. A variety of plant growth substrates can be used within the plant growth apparatus as a plant growth medium. The plant growth apparatus, containing the growth substrate medium, can be completely flushed via the drainage port to remove potential toxic byproducts of the sterilization processes. The entire system is suitably constructed using autoclavable material.
    Type: Application
    Filed: January 27, 2017
    Publication date: August 3, 2017
    Inventors: James Kremer, James M. Tiedje, Sheng-Yang He
  • Publication number: 20100105035
    Abstract: The present invention provides compositions providing and methods using fluorescence detection device, comprising an electroluminescent light (EL) source, for measuring fluorescence in biological samples. In particularly preferred embodiments, the present invention provides an economical, battery powered and Hand-held device for detecting fluorescent light emitted from reporter molecules incorporated into DNA, RNA, proteins or other biological samples, such as a fluorescence emitting biological sample on a microarray chip. Further, a real-time hand-held PCR Analyzer device comprising an EL light source for measuring fluorescence emissions from amplified DNA is provided.
    Type: Application
    Filed: November 21, 2007
    Publication date: April 29, 2010
    Inventors: Syed Anwar Hashsham, James M. Tiedje, Erdogan Gulari, Dieter Tourlousse, Robert Stedtfeld, Farhan Ahmad, Gregoire Seyrig, Onnop Srivannavit
  • Patent number: 6107079
    Abstract: Substantial degradation of polychlorinated biphenyl (PCB) mixtures is carried out using the white rot fungus Phanerochaete chrysosporium, under nutrient, carbon and nitrogen source rich, non-ligninolytic conditions. The PCBs with various numbers of ortho, meta, and para chlorines were extensively degraded, indicating relative nonspecificity for the position of chlorine substitutions on the biphenyl ring. Maximal degradation of PCBs in a mixture was observed in malt extract medium (18.4% on a molar basis), in which most of the individual PCBs were degraded.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: August 22, 2000
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Jagjit S. Yadav, Chilekampalli A. Reddy, John F. Quensen, James M. Tiedje
  • Patent number: 5834264
    Abstract: A process for producing hydrogen anaerobically in a culture medium or in the environment using a proteobacteria is described. Preferably the proteobacteria is Desulfovibrio sp. ATCC 55738 (FOX1). The hydrogen can be used as a fuel and for other purposes and is a staple chemical.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: November 10, 1998
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Robert A. Sanford, James M. Tiedje, John A. Breznak, John W. Urbance
  • Patent number: 5705374
    Abstract: A process for producing hydrogen anaerobically in a culture medium or in the environment using a proteobacteria is described. Preferably the proteobacteria is Desulfovibrio sp. ATCC 55738 (FOX1). The hydrogen can be used as a fuel and for other purposes and is a staple chemical.
    Type: Grant
    Filed: April 9, 1996
    Date of Patent: January 6, 1998
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Robert A. Sanford, James M. Tiedje, John A. Breznak, John W. Urbance
  • Patent number: 5200343
    Abstract: An improved method for the degradation of haloaliphatic compounds using induced cells of sulfate reducing anaerobic bacterium, particularly Desulfomonile tiedjei, is described. The cells are induced using 1,3-substituted phenyl compounds, particularly 3-halobenzoates, such as 3-fluorobenzoate which are gratuitous inducers and thus are not dehalogenated. The result is a much more rapid dehalogenation of the haloaliphatic compounds than was achieved by prior art methods using uninduced cells.
    Type: Grant
    Filed: May 3, 1991
    Date of Patent: April 6, 1993
    Assignee: Board of Trustees operating Michigan State University
    Inventors: James R. Cole, Babu Z. Fathepure, James M. Tiedje