Patents by Inventor Mathew Merrill Hayward

Mathew Merrill Hayward 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).

  • Hygromycin A derivatives
    Patent number: 6245745
    Abstract: This invention relates to compounds of the formula and to pharmaceutically acceptable salts and solvates thereof, wherein R1, R2, R3, X1 and X2 are as defined herein. The compounds of formula 1 are antibacterial and antiprotozoal agents that may be used to treat various bacterial and protozoal infections and disorders related to such infections. The invention also relates to pharmaceutical compositions containing the compounds of formula 1, methods of treating bacterial and protozoal infections by administering the compounds of formula 1, and methods of preparing certain compounds of formula 1.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: June 12, 2001
    Assignee: Pfizer Inc
    Inventor: Mathew Merrill Hayward