Patents by Inventor Nicholas I. Payne

Nicholas I. Payne 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).

  • Patent number: 4883792
    Abstract: A steroid cream formulation which has enhanced physical and chemical stability is formed of (11.beta.,17.alpha.)-17-(ethylthio)-9.alpha.-fluoro-11.beta.-hydroxy-17-(m ethylthio)androsta-1,4-dien-3-one (tipredane), and a vehicle containing as major ingredients propylene glycol and water together with a sodium citrate or potassium citrate buffer to impart an acid value to the cream formulation of greater than 3, a high melting point wax, such as white wax, to impart proper consistency without adversely affecting stability of the tipredane, benzyl alcohol as a preservative, together with one or more emulsifiers, which include glyceryl stearate, one or more emollients which include isopropyl isostearate or isopropyl palmitate, lubricants and other conventional cream formulation ingredients.
    Type: Grant
    Filed: January 17, 1989
    Date of Patent: November 28, 1989
    Inventors: Peter Timmins, Nicholas I. Payne
  • Patent number: 4830858
    Abstract: A method is provided for preparing a stable liposome precursor in the form of a mixture of spray-dried liposomal components including one or more biologically active compounds which may be stored dry and reconstituted with water to form a liposomal preparation immediately prior to use. The dry liposome precursor is also provided.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: May 16, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Nicholas I. Payne, J. Roger Salmon
  • Patent number: 4744989
    Abstract: A method is provided for preparing stable liposome precursors in the form of a water-soluble carrier material coated with a predetermined amount of a thin film of liposome components, which method includes the steps of dissolving at least one liposome-forming amphipathic lipid, optionally, at least one biologically active compound, and, optionally, at least one adjuvant in a suitable organic solvent and employing the resulting organic solution to coat a suitable water-soluble carrier material to form thin film of predetermined amount of liposome components thereon. Upon exposing the coated carrier material to water, the thin films of liposome components hydrate and the carrier material dissolves to give liposome preparations.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: May 17, 1988
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Nicholas I. Payne, Peter Timmins, Cheryl V. Ambrose