Patents by Inventor Daphne R. Johnson

Daphne R. Johnson 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).

  • Method to determine responsiveness of cancer to epidermal growth factor receptor targeting treatments
    Patent number: 12006555
    Abstract: Disclosed herein are methods and reagents for determining the responsiveness of cancer to an epidermal growth factor receptor (EGFR) targeting treatment. The detection of these mutations will allow for the administration of gefitinib, erlotinib and other tyrosine kinase inhibitors to those patients most likely to respond to the drug.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: June 11, 2024
    Inventors: Daphne Winifred Bell, Daniel A. Haber, Pasi Antero Janne, Bruce E. Johnson, Thomas J. Lynch, Matthew Meyerson, Juan Guillermo Paez, William R. Sellers, Jeffrey E. Settleman, Raffaella Sordella
  • Process for the preparation of dispersible quinacridones
    Patent number: 5383966
    Abstract: The present invention relates to a process for conditioning quinacridone pigments by(a) preparing an aqueous slurry of a crude quinacridone;(b) thoroughly mixing the aqueous slurry with about 0.3 to about 2.9 parts by weight, relative to the quinacridone, of at least one C.sub.1 -C.sub.12 alkyl ester of a C.sub.7 -C.sub.12 aromatic carboxylic acid at a temperature of between about 70.degree. C. and about 200.degree. C.;(c) hydrolyzing the alkyl ester used in step (b); and(d) collecting the quinacridone pigment.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: January 24, 1995
    Assignee: Miles Inc.
    Inventor: Daphne R. Johnson