Patents by Inventor Paul Christopher Marcus Hedger

Paul Christopher Marcus Hedger 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).

  • Preparation of cabergoline
    Patent number: 7238810
    Abstract: A method of preparing cabergoline Form I, comprising forming a solvate including cabergoline and 4-fluorotoluene or 1,3,5-trimethylbenzene and obtaining cabergoline Form I from the solvate. Another aspect of the present invention provides a method for preparing cabergoline Form I comprising dissolving cabergoline in 4-fluorotoluene or 1,3,5-trimethylbenzene and recovering the cabergoline Form 1 polymorph. Cabergoline Form I can then be obtained from the solution, suitably by direct crystallization of Form I or by recovery of a solvate which can be converted to Form I.
    Type: Grant
    Filed: April 7, 2005
    Date of Patent: July 3, 2007
    Inventors: Parveen Bhatarah, Derek McHattie, Alan Greenwood, Paul Christopher Marcus Hedger