Patents by Inventor Michael C. Flickinger

Michael C. Flickinger 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).

  • NON-SHEDDING HYBRID NONWOVENS AND METHOD OF PRODUCING SAME
    Publication number: 20210262130
    Abstract: A non-shedding hybrid nonwoven web comprised of 99% by mass of functional material(s) co-mingled with the filaments. High level of particle retention within the fabric is provided without the aid of adhesives, binders, adhesive polymers, or post processes. This composite web has a multi-layered structure with a uniform distribution of sorptive particles and desired opposed color contrast on each side. The process includes providing two converging streams of blown polymeric filaments, passive feed of functional material(s) in between the filament streams, and collecting the hybrid webs.
    Type: Application
    Filed: July 17, 2019
    Publication date: August 26, 2021
    Inventors: Behnam Pourdeyhimi, Hooman Amid, Benoit Maze, Michael C. Flickinger
  • Structured material for the production of hydrogen
    Patent number: 7745023
    Abstract: The present invention provides composite biological devices that include biological material as an integral component thereof. The devices can be used for producing hydrogen gas, for example.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: June 29, 2010
    Assignee: Regents of the University of Minnesota
    Inventors: Michael C. Flickinger, Caroline S. Harwood, Federico Rey
  • Composite devices incorporating biological material and methods
    Patent number: 7132247
    Abstract: The present invention provides composite biological devices that include biological material as an integral component thereof. The devices can be used for measuring metals, for example, particularly toxic metals such as mercury.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: November 7, 2006
    Assignee: Regents of the University of Minnesota
    Inventors: Olav K. Lyngberg, Michael C. Flickinger, L. Edward Scriven, II, Ron Anderson
  • Assays to detect or quantify bacterial or viral pathogens and contaminants
    Publication number: 20040137430
    Abstract: The present invention provides methods for detecting or quantifying bacterial and viral pathogens or contaminants in a sample.
    Type: Application
    Filed: October 15, 2003
    Publication date: July 15, 2004
    Applicant: Regents of the University of Minnesota
    Inventors: Dwight L. Anderson, Julio E. Sotillo Rodriguez, Ron Anderson, Daniel W. Karl, Michael C. Flickinger
  • Genes encoding resistance to DNA alkylating agents
    Patent number: 6524812
    Abstract: The invention provides genes encoding resistance to DNA bioreductive alkylating or cleaving agents and methods of identifying and using those genes.
    Type: Grant
    Filed: August 19, 1996
    Date of Patent: February 25, 2003
    Assignee: Regents of the University of Minnesota
    Inventors: David H. Sherman, Paul R. August, Michael C. Flickinger
  • Production of amino acids using auxotrophic mutants of methylotrophic bacillus
    Patent number: 6261825
    Abstract: A method of producing amino acids by culturing an amino acid auxotroph of a biologically pure strain of a type I methylotrophic bacterium of the genus Bacillus which exhibits sustained growth at 50° C. using methanol as a carbon and energy source and requiring vitamin B12 and biotin is provided.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: July 17, 2001
    Assignee: Regents of the University of Minnesota
    Inventors: Richard S. Hanson, Michael C. Flickinger, Frederick J. Schendel, Michael V. Guettler
  • Production of glutamic acid and lysine using auxotrophic mutants of Bacillus methanolicus
    Patent number: 6110713
    Abstract: A method of producing glutamic acid by culturing an amino acid auxotroph of a biologically pure strain of Bacillus methanolicus which exhibits sustained growth at 50.degree. C. using methanol as a carbon and energy source and requiring vitamin B.sub.12 and biotin is provided.
    Type: Grant
    Filed: January 22, 1997
    Date of Patent: August 29, 2000
    Assignee: Regents of the University of Minnesota
    Inventors: Richard S. Hanson, Michael C. Flickinger, Patricia Olson, Won Hur, Nuhza Al-Tahoo, Craig Bremmon
  • Protein adsorption by very dense porous zirconium oxide particles in expanded beds
    Patent number: 6036861
    Abstract: Porous Zirconia particles of specific gravity of 2.5-3.5 g/cm.sup.3 and mean particle sizes of 30-400 .mu.m can be synthesized using oil emulsion methods from colloids and used for protein adsorption in stable expanded beds. Expanded beds of less than 1.0 settled bed height to diameter (approximately 10 ml bed volume) are stable at linear fluid velocities of at least about 100 cm/hour.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: March 14, 2000
    Assignee: Regents of the University of Minnesota
    Inventors: Michael C. Flickinger, Michael J. Robichaud, John E. Morris, Colleen M. Griffith, Michael J. Annen, Peter W. Carr, Christopher Dunlap
  • Protein adsorption by very dense porous zirconium oxide particles in expanded beds
    Patent number: 5837826
    Abstract: Porous zirconia particles of specific gravity of 2.5-3.5 g/cm.sup.3 and mean particle sizes of 30-400 .mu.m can be synthesized using oil emulsion methods from colloids and used for protein adsorption in stable expanded beds. Expanded beds of less than 1.0 settled bed height to diameter (approximately 10 ml bed volume) are stable at linear fluid velocities of at least about 100 cm/hour.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: November 17, 1998
    Assignee: Regents of The University of Minnesota
    Inventors: Michael C. Flickinger, Michael J. Robichaud, John E. Morris, Colleen M. Griffith, Michael J. Annen, Peter W. Carr, Christopher Dunlap
  • Bacillus MGA3 diaminopimelate decarboxylase gene
    Patent number: 5426052
    Abstract: The present invention provides the isolated DNA sequence encloding the dimer subunit of the lysine-sensitive diaminopimelate decarboxylase from the thermophilic methylotrophic Bacillus sp. MGA3.
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: June 20, 1995
    Assignee: Regents of the University of Minnesota
    Inventors: Michael C. Flickinger, David A. Mills
  • Direct calcium magnesium acetate production
    Patent number: 5316928
    Abstract: The invention provides a method for the direct biological production of calcium magnesium acetate using a novel combination of an aerobic thermophilic bacterium of the genus Bacillus, capable of supporting the sustained production of substantial quantities of acetic acid at low pH, high temperatures, and high salt concentrations. Strains of bacterium of the genus Bacillus selected and isolated for use in the present invention produce acetic acid in the presence of a neutralizing source of calcium and magnesium ions, such as dolomitic lime, to produce substantial quantities of calcium magnesium acetate.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: May 31, 1994
    Assignee: Regents of the University of Minnesota
    Inventors: Michael C. Flickinger, Richard S. Hanson, Frederick J. Schendel, Charles R. Anderson, Paul R. August
  • Bacillus MGA3 aspartokinase II gene
    Patent number: 5243039
    Abstract: The present invention provides the isolated DNA sequence encoding the .alpha.B dimer subunit of the lysine-sensitive aspartokinase II isozyme from the thermophilic methylotrophic Bacillus sp. MGA3.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: September 7, 1993
    Assignee: Regents of the University of Minnesota
    Inventors: Frederick J. Schendel, Michael C. Flickinger
  • Production of ethanol by yeast using xylulose
    Patent number: 4490468
    Abstract: Ethanol is produced by the fermentation of xylulose using yeast under fermentative conditions.
    Type: Grant
    Filed: April 23, 1980
    Date of Patent: December 25, 1984
    Assignee: Purdue Research Foundation
    Inventors: Cheng Shung Gong, Li Fu Chen, Michael C. Flickinger, George T. Tsao