Patents Assigned to DRD Diluter Corp.
  • Pipette
    Patent number: 5383372
    Abstract: A pipette has a first and second piston to provide for a precise dose measurement and delivery, and a second dose which can be an air blowout to fully expel the precise measured first dose. Preferably, two pistons used are of different diameter with a difference in diameters permitting precise measurement of small doses of, for example, 10 microliters or less.
    Type: Grant
    Filed: June 22, 1993
    Date of Patent: January 24, 1995
    Assignee: DRD Diluter Corp.
    Inventors: Humayun Qureshi, Donald Schwartz