Patents by Inventor John Calvin Schmidt

John Calvin Schmidt 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: 8062846
    Abstract: An apparatus for preparing a nucleic acid component of a sample for amplification includes a porous support having an agent that deactivates a nucleic acid amplification inhibitor component of the sample. The apparatus further includes a housing with an opening and defining an interior. The interior of the housing is in fluid communication with the porous support, and at least a portion of a fluid directed through the opening is directed through at least a portion of the porous support. The apparatus also includes a magnetic substrate for separating nucleic acid from a sample.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: November 22, 2011
    Assignees: Massachusetts Institute of Technology, Smiths Detection-Edgewood, Inc.
    Inventors: Laura T. Bortolin, Lalitha Parameswaran, James Harper, Johanna Bobrow, Mark A. Hollis, Drew Chapman Brown, Eric Scott Clasen, John Calvin Schmidt
  • Publication number: 20080131949
    Abstract: A method for preparing a nucleic acid component of a sample for amplification includes contacting the sample with a porous support that deactivates a nucleic acid amplification inhibitor component of the sample and directing a fluid through the porous support, whereby the nucleic acid component of the sample is directed through at least a portion of the porous support and is separated from the support, thereby preparing the nucleic acid component for amplification. The sample is separated from raw sample components through means that include a magnetic substrate. An apparatus suitable for conducting the method of the invention also is described.
    Type: Application
    Filed: May 18, 2007
    Publication date: June 5, 2008
    Inventors: Laura T. Bortolin, Lalitha Parameswaran, James Harper, Johanna Bobrow, Mark A. Hollis, Drew Chapman Brown, Eric Scott Clasen, John Calvin Schmidt
  • Publication number: 20040126783
    Abstract: A method for preparing a nucleic acid component of a sample for amplification includes contacting the sample with a porous support that deactivates a nucleic acid amplification inhibitor component of the sample and directing a fluid through the porous support, whereby the nucleic acid component of the sample is directed through at least a portion of the porous support and is separated from the support, thereby preparing the nucleic acid component for amplification. The sample is separated from raw sample components through means that include a magnetic substrate. An apparatus suitable for conducting the method of the invention also is described.
    Type: Application
    Filed: July 10, 2003
    Publication date: July 1, 2004
    Applicants: Massachusetts Institute of Technology, Smiths Detection-Edgewood, Inc.,
    Inventors: Laura T. Bortolin, Lalitha Parameswaran, James Harper, Johanna Bobrow, Mark A. Hollis, Drew Chapman Brown, Eric Scott Clasen, John Calvin Schmidt
  • Patent number: 5830344
    Abstract: A disposable sensor for metal analysis comprises a housing including a first section, a second section, and a flexible intermediate section therebetween. An ampoule containing a reagent is disposed in the intermediate section. A liquid seal is formed between the first and second sections. The intermediate section of the housing of the disposable sensor may be flexed to break the ampoule. When the seal is broken between the first and second sections, and the water (or any other liquid) sample mixes with the reagent, the mixture flows into the second section containing an electrode assembly. The electrode assembly may be disposed in engagement with the monitoring device to determine the concentration of the at least one metal in the water (or any other liquid) sample.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: November 3, 1998
    Assignee: Environmental Technologies Group, Inc.
    Inventors: Richard Vernon Priddy, John Calvin Schmidt, John Eugene Studer, Jr.