Patents by Inventor Roger J. Repasi

Roger J. Repasi 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).

  • Process for histological tissue specimen treatment that includes variable sensitivity level control
    Patent number: 5049510
    Abstract: A histological tissue specimen treatment process includes the steps of placing a plurality of histological tissue specimens to be processed in chamber structure, closing the chamber structure, monitoring the level of a first tissue processing material flowed into the chamber structure with a sensor system that responds to a characteristic of the first tissue processing material, terminating the flow of the first tissue processing material when the histological tissue specimens are immersed in the first tissue processing material, flowing the first tissue processing material from the chamber structure after the histological tissue specimens have been immersed in the first tissue processing material for a predetermined time interval, monitoring the level of a second tissue processing material flowed into the chamber structure with the sensor system in a changed sensitivity condition, terminating the flow of the second tissue processing material when the plurality of histological tissue specimens are immersed in
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: September 17, 1991
    Assignee: Fisher Scientific Company
    Inventors: Roger J. Repasi, David G. Abichaker, Jerry C. Premus