Patents Assigned to Amco Standards International
  • Styrene-divinylbenzene copolymer and method of manufacture
    Patent number: 4291980
    Abstract: A unique styrene-divinylbenzene copolymer is taught together with its method of manufacture. The novel copolymer has been accepted as a definitive standard in the measurement of turbidity in water.
    Type: Grant
    Filed: August 14, 1978
    Date of Patent: September 29, 1981
    Assignee: Amco Standards International
    Inventor: James A. Patterson
  • Optical characterization of a suspension
    Patent number: 4283143
    Abstract: A method of determining the percent solids and particle size distribution of a liquid suspension is taught. A purely optical method of making these determinations is disclosed which is independent of the physical nature of the particles in suspension.
    Type: Grant
    Filed: November 19, 1979
    Date of Patent: August 11, 1981
    Assignee: Amco Standards International
    Inventor: James A. Patterson