Patents by Inventor George K. E. Gregory

George K. E. Gregory 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).

  • Solid shaped articles
    Patent number: 4758598
    Abstract: Solid shaped articles, particularly pharmaceutical dosage forms, are prepared by freezing in a mould a composition comprising a predetermined amount of chemical (e.g. pharmaceutical) and a solution of carrier material and then subliming solvent from the frozen composition. The side wall or walls of the mould make an angle with the vertical of at least 5.degree. at the surface of the composition. This enables shaped articles of constant thickness to be produced with minimum sublimation times.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: July 19, 1988
    Assignee: John Wyeth & Brother Ltd.
    Inventor: George K. E. Gregory
  • Articles for carrying chemicals
    Patent number: 4371516
    Abstract: The invention relates to shaped articles carrying chemicals, particular to pharmaceutical dosage forms carrying pharmaceuticals, which disintegrate rapidly in water. The shaped articles comprise an open matrix network of carrier material carrying the chemical. The articles may be prepared by subliming solvent from a composition comprising the chemical and a solution of the carrier material in a solvent, the composition being in the solid state in a mould.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: February 1, 1983
    Assignee: John Wyeth & Brother Limited
    Inventors: George K. E. Gregory, James M. Peach, James D. Du Mayne
  • Pharmaceutical dosage form packges
    Patent number: 4305502
    Abstract: The invention relates to packages containing shaped articles carrying chemicals, particularly to pharmaceutical dosage forms carrying pharmaceuticals. The shaped articles, which disintegrate rapidly in water are contained in depressions in sheets of filmic material and are enclosed by a covering sheet adhering to the filmic material. The shaped articles may be formed in the depressions by a sublimation process.
    Type: Grant
    Filed: July 14, 1978
    Date of Patent: December 15, 1981
    Assignee: John Wyeth & Brother Limited
    Inventors: George K. E. Gregory, David S. S. Ho
  • Slow release pharmaceutical compositions containing 3-[2-(4-benzamido-1-piperidyl)ethyl]indole, embonate
    Patent number: 4223008
    Abstract: The invention provides a pharmaceutical composition in tablet form having an enteric coating and comprising 3-[2-(4-benzamido-1-piperidyl)ethyl]indole, embonate and a pharmaceutically acceptable carrier useful as a prolonged release antihypertensive formulation.
    Type: Grant
    Filed: May 14, 1979
    Date of Patent: September 16, 1980
    Assignee: John Wyeth & Brother Limited
    Inventor: George K. E. Gregory