Patents Assigned to Micro Tracers, Inc.
  • Microingredient containing tracer
    Patent number: 4654165
    Abstract: A tracer particle for determining the concentration of a microingredient in a bulk material is disclosed. The tracer particle comprises a finely divided ferromagnetic particulate material approximately 90% of which is approximately 325 mesh or smaller, a microingredient and a binder wherein the microingredient and ferromagnetic material are entrapped in the binder and wherein the tracer particle is approximately 35 to 80 mesh in size.
    Type: Grant
    Filed: April 16, 1985
    Date of Patent: March 31, 1987
    Assignee: Micro Tracers, Inc.
    Inventor: Sylvan Eisenberg
  • Tracer-containing composition
    Patent number: 4152271
    Abstract: A dry homogeneous admixture including a bulk material, a micro-ingredient, and a solid particulate tracer in a preselected ratio to the micro-ingredient, comprising a vehicle of ground iron or other ferromagnetic material that will become magnetized by a magnetic field, but loses its magnetism in the absence of such a field. The vehicle itself serves as the tracer when used with magnetic detection techniques. Additional tracers are provided by coating the vehicle with detectable coatings such as dyes.
    Type: Grant
    Filed: January 28, 1974
    Date of Patent: May 1, 1979
    Assignee: Micro Tracers, Inc.
    Inventor: Sylvan Eisenberg
  • Tracers
    Patent number: 4029820
    Abstract: Tracer material formed of a finely powdered reduced iron carrier having adsorbed thereon sodium selenite or sodium selenate.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: June 14, 1977
    Assignee: Micro Tracers, Inc.
    Inventor: Sylvan Eisenberg