Patents by Inventor Adrian F. Davis

Adrian F. Davis 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: 5631248
    Abstract: Two-component pharmaceutical compositions for topical application to the human or animal body comprising two miscible liquid phases having different lipophilicities and a drug dissolved in at least one liquid phase, each phase comprising at least one topically acceptable non-aqueous and non-volatile solvent.
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: May 20, 1997
    Assignee: SmithKline Beecham plc
    Inventors: Adrian F. Davis, Jennifer J. Gordon
  • Patent number: 5629026
    Abstract: Compositions for oral administration for the treatment of gastric disorders comprising histamine H.sub.2 -receptor antagonist and antacid, optionally buffered to promote local absorption of the H.sub.2 -receptor antagonist, wherein the quantity of H.sub.2 -receptor antagonist per unit dosage form is less than 25 mg.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: May 13, 1997
    Assignee: SmithKline Beecham plc
    Inventor: Adrian F. Davis
  • Patent number: 5174995
    Abstract: A topical composition containing a dissolved drug or the like (e.g. hydrocortisone acetate) preferably in saturated solution, and a solubilizer (e.g. propylene glycol), and preferably water and an antinucleant, is applied to a water-wetted area of the body, such as the hair or scalp, such that, on mixing with the body water, the resultant drug concentration exceeds the saturated drug solubility in the initially formed resultant mixture, thus giving a supersaturated drug composition.
    Type: Grant
    Filed: December 10, 1987
    Date of Patent: December 29, 1992
    Assignee: Beecham Group p.l.c.
    Inventor: Adrian F. Davis
  • Patent number: 4940701
    Abstract: A pharmaceutical composition for topical administration consisting of two liquid phases designed to be admixed in situ or prior to use. The first phase contains a dissolved drug, and is preferably saturated in the drug, while the second phase is a chemically or physically different liquid from that in the first phase and contains no drug, but is miscible with the first phase. The two liquids are selected so that, on admixture of suitable volumes of the phases, the resultant drug concentration exceeds the saturated drug solubility in the resultant mixture. This produces a liquid mixture supersaturated in drug, which has been found to increase the rate of drug penetration into the skin. The two liquid phases may be gels, and the drug may be hydrocortisone.At least one phase contains an antinucleant to improve stability of the resulting supersaturated solution.
    Type: Grant
    Filed: December 10, 1987
    Date of Patent: July 10, 1990
    Assignee: Beecham Group p.l.c.
    Inventor: Adrian F. Davis
  • Patent number: 4842164
    Abstract: A nozzle insert for a nozzle of a striped paste dispenser has a hollow cylindrical body through which a first pasty material may be dispensed, the external surface of the hollow body having circumferentially spaced apart plateaus separated by grooves through which a second pasty material may be dispensed, the body preventing contact between the two pasty materials downstream of the discharge end of the insert.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: June 27, 1989
    Assignee: Beecham Group p.l.c.
    Inventors: Adrian F. Davis, Peter R. Watt
  • Patent number: 4767751
    Abstract: A pharmaceutical composition for topical administration consisting of two liquid phases designed to be admixed in situ or prior to use. The first phase contains a dissolved drug, and is preferably saturated in the drug, while the second phase is a chemically or physically different liquid from that in the first phase and contains no drug, but is miscible with the first phase. The two liquids are selected so that, on admixture of suitable volumes of the phases, the resultant drug concentration exceeds the saturated drug solubility in the resultant mixture. This produces a liquid mixture supersaturated in drug, which has been found to increase the rate of drug penetration into the skin. The two liquid phases may be gels, and the drug may be hydrocortisone.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: August 30, 1988
    Assignee: Beecham Group p.l.c.
    Inventor: Adrian F. Davis
  • Patent number: 4324778
    Abstract: The acute liver toxicity effects of paracetamol are reduced by co-formulating with ascorbic acid derivatives (ascorbate anion bioprecursors) which produce high liver concentrations of ascorbate anion after oral administration of the co-formulation. A suitable ascorbate anion bioprecursor is ascorbyl 6-palmitate.
    Type: Grant
    Filed: January 29, 1980
    Date of Patent: April 13, 1982
    Assignee: Beecham Group Limited
    Inventor: Adrian F. Davis
  • Patent number: 4292298
    Abstract: The acute liver toxicity effects of paracetamol are reduced by co-formulating with sustained release ascorbic acid which produces high liver concentrations of ascorbate anion after oral administration of the co-formulation. A suitable form of sustained release ascorbic acid is prepared by microencapsulation of particles of ascorbic acid in membranes which act as microdialysis cells.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: September 29, 1981
    Assignee: Beecham Group Limited
    Inventor: Adrian F. Davis
  • Patent number: 4153691
    Abstract: A pharmaceutical composition having analgesic, anti-pyretic and anti-inflammatory activity and administration thereof in oral dosage form, comprising 2-(carbamoyl)phenyl-2-acetoxybenzoate as active ingredient and procedure for preparing such active ingredient. One or more pharmaceutically acceptable oral carriers are mixed with the active ingredient for oral administration in various dosage forms. The disadvantages of acetyl salicyclic acid and salicylamide are avoided.
    Type: Grant
    Filed: February 17, 1977
    Date of Patent: May 8, 1979
    Assignee: Beecham Group Limited
    Inventors: Adrian F. Davis, Gordon J. A. Dixon