Patents by Inventor Michael C. Allwood

Michael C. Allwood 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).

  • Delayed release formulations
    Patent number: 5294448
    Abstract: Delayed release compositions comprising an active compound and amorphous amylose and having an outer coating comprising a film forming cellulose or acrylic polymer material, for example glassy amylose are of particular value for the selective release of medicaments and diagnostic agents into the colon.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: March 15, 1994
    Assignee: British Technology Group Limited
    Inventors: Stephen G. Ring, David B. Archer, Michael C. Allwood, Johh M. Newton
  • Delayed release formulations
    Patent number: 5108758
    Abstract: Delayed release compositions comprising an active compound and glassy amylose. A variety of different types of active compound may be employed in the compositions. The compositions are particularly adapted for achieving the selective release of medicaments into the colon.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: April 28, 1992
    Assignee: National Research Development Corporation
    Inventors: Michael C. Allwood, David B. Archer, Stephen G. Ring