Patents by Inventor Franics P. Buxton

Franics P. Buxton 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).

  • Aspergillus niger transformation system
    Patent number: 4885249
    Abstract: Transformants of Aspergillus niger and related Aspergilli, containing foreign DNA conferring modified properties of expression thereon, are prepared by use of a DNA vector which contains a selectable marker which is capable of incorporation into the DNA of the host A. niger cells, but which is not to be found in the A. niger cells prior to this transformation. The vector also contains other foreign DNA to be incorporated into the A. niger, for modified expression. The process suitably uses mutants of A. niger as hosts, the mutants lacking the selectable marker as compared with wild type A. niger, and conducts the transformation on spheroplasts of A. niger.
    Type: Grant
    Filed: December 5, 1984
    Date of Patent: December 5, 1989
    Assignee: Allelix, Inc.
    Inventors: Franics P. Buxton, David I. Gwynne, Roger W. Davies