Patents by Inventor Zafaruzzaman I. Shaikh

Zafaruzzaman I. Shaikh 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).

  • Propylene carbonate ointment vehicle
    Patent number: 4017615
    Abstract: An ointment vehicle containing from 0.5 to 30 percent propylene carbonate, from 30 to 99.5 weight percent petrolatum and/or polysiloxane, compatible cosolvent, the concentration of which in combination with propylene carbonate is from 0.5 to 70 percent, and, optionally, surfactants, thickeners, preservatives, and penetrants. This ointment is a suitable vehicle for all types of therapeutic agents for topical application including antibiotics, steroids, antihistamines, antiseptics, anesthetics, antibacterials, fungicides and the like, and has shown particular advantages with anti-inflammatory topical corticoids.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: April 12, 1977
    Assignee: Syntex Corporation
    Inventors: Subramaniam Shastri, Zafaruzzaman I. Shaikh