Patents by Inventor Mark Steinert

Mark Steinert 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).

  • Method of calibration using analytical apparatus for measurement of low concentration constituent
    Patent number: 6679093
    Abstract: An analytical apparatus for measuring a low concentration of a constituent in a stream at a parts per billion level is provided. The apparatus comprises a sample loop having a predetermined volume for receiving a sample from the stream, a purifier for producing substantially pure carrier liquid from a sample of the stream, a first and a second multi-path valve, a preconcentrator column for absorbing and increasing the concentration of the low concentration constituent, an eluent, and a detector. In one embodiment, the apparatus is an ion chromatograph and may be used to analyze ions at concentrations as low as about 1 to about 500 parts per trillion. A method for analyzing a stream for a low concentration constituent present in a stream at a parts per billion level is also provided. The invention also includes methods for single- and multi-point calibration of a detector in an analytical apparatus for measuring a low concentration of a constituent in a stream at a parts per billion level.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: January 20, 2004
    Assignee: JMIC, Inc.
    Inventors: John E. Johnson, Mark Steinert
  • Analytical apparatus for measurement of low concentration constituent, method of measurement and calibration using the same
    Patent number: 6526811
    Abstract: An analytical apparatus for measuring a low concentration of a constituent in a stream at a parts per billion level is provided. The apparatus comprises a sample loop having a predetermined volume for receiving a sample from the stream, a purifier for producing substantially pure carrier liquid from a sample of the stream, a first and a second multi-path valve, a preconcentrator column for absorbing and increasing the concentration of the low concentration constituent, an eluent, and a detector. In one embodiment, the apparatus is an ion chromatograph and may be used to analyze ions at concentrations as low as about 10 to about 1 part per billion. A method for analyzing a stream for a low concentration constituent present in a stream at a parts per billion level is also provided. The invention also includes methods for single- and multi-point calibration of a detector in an analytical apparatus for measuring a low concentration of a constituent in a stream at a parts per billion level.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: March 4, 2003
    Assignee: JMIC, Inc.
    Inventors: John E. Johnson, Mark Steinert
  • Method of calibration using analytical apparatus for measurement of low concentration constituent
    Publication number: 20030037589
    Abstract: An analytical apparatus for measuring a low concentration of a constituent in a stream at a parts per billion level is provided. The apparatus comprises a sample loop having a predetermined volume for receiving a sample from the stream, a purifier for producing substantially pure carrier liquid from a sample of the stream, a first and a second multi-path valve, a preconcentrator column for absorbing and increasing the concentration of the low concentration constituent, an eluent, and a detector. In one embodiment, the apparatus is an ion chromatograph and may be used to analyze ions at concentrations as low as about 1 to about 500 parts per trillion. A method for analyzing a stream for a low concentration constituent present in a stream at a parts per billion level is also provided. The invention also includes methods for single- and multi-point calibration of a detector in an analytical apparatus for measuring a low concentration of a constituent in a stream at a parts per billion level.
    Type: Application
    Filed: October 17, 2002
    Publication date: February 27, 2003
    Applicant: JMIC, Inc.
    Inventors: John E. Johnson, Mark Steinert
  • Analytical apparatus for measurement of low concentration constituent, method of measurement and calibration using the same
    Publication number: 20020011096
    Abstract: An analytical apparatus for measuring a low concentration of a constituent in a stream at a parts per billion level is provided. The apparatus comprises a sample loop having a predetermined volume for receiving a sample from the stream, a purifier for producing substantially pure carrier liquid from a sample of the stream, a first and a second multi-path valve, a preconcentrator column for absorbing and increasing the concentration of the low concentration constituent, an eluent, and a detector. In one embodiment, the apparatus is an ion chromatograph and may be used to analyze ions at concentrations as low as about 10 to about 1 part per billion. A method for analyzing a stream for a low concentration constituent present in a stream at a parts per billion level is also provided. The invention also includes methods for single- and multi-point calibration of a detector in an analytical apparatus for measuring a low concentration of a constituent in a stream at a parts per billion level.
    Type: Application
    Filed: February 23, 2001
    Publication date: January 31, 2002
    Applicant: JMIC, Inc.
    Inventors: John E. Johnson, Mark Steinert