Patents Assigned to Drythanol Limited
  • Dithranol compositions for topical applications
    Patent number: 4203969
    Abstract: Composition for topical application in the treatment of psoriasis comprises specified amounts of dithranol, an acid and anti-oxidant, petroleum jelly, which may be mixed with a spreadable synthetic rubber, water, and an emulsifier. These compositions show little tendency to spread after application to a psoriatic area and show a reduced tendency to stain.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: May 20, 1980
    Assignee: Drythanol Limited
    Inventors: Hyman Yarrow, Martin Whitefield