Patents by Inventor Felix Frank

Felix Frank has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Storage of materials
    Patent number: 5098893
    Abstract: A material or mixture of materials which is not itself storage stable is rendered storage stable by incorporation into a water-soluble or swellable glassy or rubbery composition which can then be stored at ambient temperature. Recovery is by adding aqueous solution to the composition.
    Type: Grant
    Filed: February 12, 1990
    Date of Patent: March 24, 1992
    Assignee: Pafra Limited
    Inventors: Felix Franks, Ross H. M. Hatley
  • Preservation by cold storage
    Patent number: 4863865
    Abstract: Material which contains water, or is accompanied by an aqueous phase, notably biological cells, cell components or cell aggregates, or differentiated biological tissue is preserved by dispersion in an oil medium and under-cooling the dispersion, preferably to a temperature in the range -20.degree. C. to -40.degree. C. The oil medium is characterized by the absence of surfactant which can catalyze ice formation and is an immobile gel at the storage temperature. The preferred oil 10 medium is paraffin oil, or oil plus paraffin wax.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: September 5, 1989
    Inventor: Felix Franks