Patents Assigned to Payfer Laboratories Inc.
  • Patent number: 4229544
    Abstract: A method of packaging, and the package so produced, for maintaining living organisms viable for a long period of time. The living organisms, such as bacteria, fungi, algae, etc., are mixed with a carrier, such as peat. The organism-carrier mixture is then disposed in a package, such as a heat-sealable plastic envelope, and a gaseous atmosphere is provided in the package effective to induce and maintain substantial nonvegatative state formation of the organisms. Some organisms will form cysts, others spores, but whatever nonvegetative state is assumed, the organisms will be much less susceptible to heat, cold, starvation, and other adverse environmental factors. Suitable gaseous atmospheres include nitrogen, helium, and argon gases. The package is then sealed to prevent contamination of the atmosphere therein.
    Type: Grant
    Filed: August 8, 1978
    Date of Patent: October 21, 1980
    Assignee: Payfer Laboratories Inc.
    Inventors: Robert W. Haynes, William H. Rasmussen