Patents by Inventor Peter M. Greenhalgh

Peter M. Greenhalgh 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 sodium chromoglycate and .beta.2 selective bronchodilators
    Patent number: 4409237
    Abstract: There are described salts of 1,3-bis(2-carboxychromon-5-yloxy)propan-2-ol with certain long acting or .beta.2 selective bronchodilators.There are also described certain pharmaceutical mixtures comprising(a) one or more of 1,3-bis(2-carboxychromon-5-yloxy)-propan-2-ol, or a pharmaceutically acceptable salt thereof, in combination with(b) one or more .beta.2 selective or long acting bronchodilators, or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: April 21, 1981
    Date of Patent: October 11, 1983
    Assignee: Fisons Limited
    Inventors: Hugh Cairns, Peter M. Greenhalgh, Brian Howlett