Patents by Inventor Roy M. Daniel

Roy M. Daniel 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).

  • Proteolytic enzyme
    Patent number: 4480036
    Abstract: The invention relates to an extremely thermophilic bacterium, Thermus T-351, and a thermophilic protease, Caldolysin, derived therefrom. The bacterium cells are Gram negative, non-sporulating rods. Its natural environment is a hot pool at 79.degree..+-.4.degree. C. The protease is stable at temperatures up to 75.degree. C. at a pH range of 4 to 12. It is most active at temperatures of 65.degree. C. to 85.degree. C. but retains at least some activity at lower temperatures.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: October 30, 1984
    Assignee: Development Finance Corporation
    Inventors: Hugh W. Morgan, Roy M. Daniel, Donald A. Cowan, Christopher W. Hickey
  • Stereospecific asparaginases
    Patent number: 4473646
    Abstract: There is described a method of separating an asparaginase rich fraction from a thermophilic microoganism and then to divide this fraction into its D- and L-asparaginases. Substantially pure crystals of the D-asparaginase were obtained.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: September 25, 1984
    Assignee: Development Finance Corp. of New Zealand
    Inventors: Graeme R. Guy, Hugh W. Morgan, Roy M. Daniel
  • Thermo-stable micro-organism
    Patent number: 4442214
    Abstract: The invention relates to an extremely thermophilic bacterium, THERMUS T-351, and a thermophilic protease, CALDOLYSIN, derived therefrom. The bacterium cells are Gram negative, non-sporulating rods. Its natural environment is a hot pool at 79.degree..+-.4.degree. C. The protease is stable at temperatures up to 75.degree. C. at a pH range of 4 to 12. It is most active at temperatures of 65.degree. C. to 85.degree. C. but retains at least some activity at lower temperatures.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: April 10, 1984
    Assignee: Development Finance Corporation of New Zealand
    Inventors: Hugh W. Morgan, Roy M. Daniel