Patents by Inventor Colin R. Heppenstall

Colin R. Heppenstall 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).

  • Pharmaceutical compositions containing furan derivatives
    Patent number: 5456925
    Abstract: The invention relates to a pharmaceutical composition in solid unit dosage form adapted for oral administration, comprising a salt formed between ranitidine and a complex of bismuth with a carboxylic acid selected from tartaric acid and citric acid together with an alkaline salt. For example the composition is in tablet form and comprises ranitidine bismuth citrate and sodium carbonate.The composition shows improved disintegration and/or dissolution.
    Type: Grant
    Filed: March 22, 1994
    Date of Patent: October 10, 1995
    Assignee: Glaxo Group Limited
    Inventors: Norman R. Smith, Colin R. Heppenstall, Stephen J. Douglas
  • Depression for a tablet
    Patent number: D377977
    Type: Grant
    Filed: July 9, 1994
    Date of Patent: February 11, 1997
    Assignee: Glaxo Group Limited
    Inventors: Philip T. Price, Michael B. Davies, Paul K. Rand, Yogendra Dandiker, Colin R. Heppenstall, Paul D. Huckle