Patents by Inventor David L. Haavig

David L. Haavig 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 and apparatus for rapid particle identification utilizing scattered light histograms
    Patent number: 6639672
    Abstract: Unique methods and apparatus are provided for rapidly identifying microscopic particles, such as protozoa and other microbes suspended in a fluid or gas.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: October 28, 2003
    Assignee: Micro Imaging Technology
    Inventors: David L. Haavig, Gary Lorden
  • Method and apparatus for rapid particle identification utilizing scattered light histograms
    Publication number: 20020186372
    Abstract: Unique methods and apparatus are provided for rapidly identifying microscopic particles, such as protozoa and other microbes suspended in a fluid or gas.
    Type: Application
    Filed: July 15, 2002
    Publication date: December 12, 2002
    Applicant: Electropure Inc.
    Inventors: David L. Haavig, Gary Lorden
  • Method and apparatus for rapid particle identification utilizing scattered light histograms
    Patent number: 6421121
    Abstract: Unique methods and apparatus are provided for rapidly identifying microscopic particles, such as protozoa and other microbes suspended in a fluid or gas. In one embodied form, the method comprises illuminating the particles to be detected with an intense light source such as a laser, detecting scattered light by means of an array of optical sensors surrounding a detection zone, converting the detected light to an electrical signal, and comparing the derived signal with at least one frequency-of-occurrence/probability histogram curve to qualitatively and/or quantitatively identify the microscopic particles present.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: July 16, 2002
    Assignee: Micro Imaging Technology
    Inventors: David L. Haavig, Gary Lorden