Patents by Inventor John M. Padfield

John M. Padfield 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).

  • Micronised beclomethasone dipropionate monohydrate compositions and methods of use
    Patent number: 4866051
    Abstract: Beclomethasone dipropionate in the form of its micronised monohydrate substantially free from water other than water of crystallisation. Pharmaceutical compositions containing the compound are also described. The compositions may be in the form of powder inhalation cartridges especially suitable for the treatment and/or prophylaxis of asthma.
    Type: Grant
    Filed: January 30, 1985
    Date of Patent: September 12, 1989
    Assignee: Glaxo Group Limited
    Inventors: John H. Hunt, John M. Padfield
  • Pharmaceutical compositions
    Patent number: 4594359
    Abstract: A pharmaceutical composition is described which contains as active ingredient the .beta.-stimulant salbutamol or one or more of its physiologically acceptable salts. The stability of aqueous formulations of the composition is improved by including a cellulose derivative which provide an optically transparent or opalescent colloidal dispersion. Preferred compositions are liquid formulations suitable for oral administration in which the cellulose derivative also serves as a thickening agent.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: June 10, 1986
    Assignee: Glaxo Group Limited
    Inventors: John M. Padfield, Cheryl V. Groom
  • Pharmaceutical compositions
    Patent number: 4585790
    Abstract: Aqueous formulations of raniditine have been found to have enhanced shelf life provided that they are formulated with a pH in the range 6.5--7.5. Suitable aqueous formulations include injections for intravenous and intramuscular administration, continuous infusions and oral preparations such as syrups.
    Type: Grant
    Filed: May 11, 1984
    Date of Patent: April 29, 1986
    Assignee: Glaxo Group Limited
    Inventors: John M. Padfield, Ian K. Winterborn
  • Cap for an inhalation device
    Patent number: D370726
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: June 11, 1996
    Assignee: Glaxo Group Limited
    Inventor: John M. Padfield