Patents Assigned to Dirigo Corporation
  • Composition and method for safely extending storage life of foods
    Patent number: 4076850
    Abstract: A buffered aqueous solution of a small amount of bacterial inhibitor, such as methyl parabenzoic acid or a mixture of sorbic acid and sodium propionate extends the storage life under refrigeration of such products as shelled, hard-cooked eggs, cooked peeled shrimp, cooked and uncooked scallops, and cooked mushrooms.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: February 28, 1978
    Assignee: Dirigo Corporation
    Inventors: John T. R. Nickerson, John R. Darack
  • Compositions for safe extension of storage life of foods
    Patent number: 3937814
    Abstract: A spoilage control composition containing an inoculum of Pediococcus cerevisiae or Lactobacillus viridescens and a combination of a sorbic acid compound and a propionic acid compound which permits the benign organism to grow but suppresses the common food-borne disease organisms and spoilage organisms.
    Type: Grant
    Filed: March 29, 1974
    Date of Patent: February 10, 1976
    Assignee: Dirigo Corporation
    Inventors: John T. R. Nickerson, John R. Darack