Patents by Inventor Dena E. Rosenberger

Dena E. Rosenberger 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).

  • Bioluminescent bioassay system
    Patent number: 5840572
    Abstract: A system for measuring toxicity levels of a solution includes a water proof sample container transparent to visible light which holds an aqueous test solution containing bioluminescent organisms. A light tight chamber has a cavity which holds the sample container and includes a light port. A stress generating system positioned in the sample container generates pressure pulses which stimulate the organisms to generate light emissions. A light detector system mounted to the light tight chamber in a light tight manner detects light emissions generated in the sample container which propagate through the light port and are received by the light detector system. The light detector system generates an electric pulse in response to detecting each detected light emission. A controller enables the stress generating system and the light detector system, and then counts the electric pulses within a predetermined period of time.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: November 24, 1998
    Assignee: United States of America as represented by the Secretary of the Navy
    Inventors: Hugh D. Copeland, David Lapota, Dena E. Rosenberger, Gary F. Mastny
  • Bioluminescent bioassay system
    Patent number: 5565360
    Abstract: A system for measuring toxicity levels of a solution includes a water proof sample container transparent to visible light which holds an aqueous test solution containing bioluminescent organisms. A light tight chamber has a cavity which holds the sample container and includes a light port. A stress generating system positioned in the sample container generates pressure pulses which stimulate the organisms to generate light emissions. A light detector system mounted to the light tight chamber in a light tight manner detects light emissions generated in the sample container which propagate through the light port and are received by the light detector system. The light detector system generates an electric pulse in response to detecting each detected light emission. A controller enables the stress generating system and the light detector system, and then counts the electric pulses within a predetermined period of time.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: October 15, 1996
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: David Lapota, Gary F. Mastny, Hugh D. Copeland, Dena E. Rosenberger