Patents by Inventor Deborah Challis

Deborah Challis 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).

  • Sustained release compositions and a method of preparing pharmaceutical compositions
    Publication number: 20010019725
    Abstract: A process for the manufacture of particles comprises mechanically working a mixture of a drug and a hydrophobic and/or hydrophilic fusible carrier in a high speed mixture so as to form agglomerates, breaking the agglomerates to give controlled release particles and optionally continuing the mechanical working with the optional addition of a low percentage of the carrier or diluent.
    Type: Application
    Filed: December 19, 2000
    Publication date: September 6, 2001
    Inventors: Ronald Brown Miller, Stewart Thomas Leslie, Sandra Therese Antoinette Malkowska, Derek Allan Prater, Trevor John Knott, Joanne Heafield, Deborah Challis
  • Sustained release compositions and a method of preparing pharmaceutical compositions
    Patent number: 6162467
    Abstract: A process for the manufacture of particles comprises mechanically working a mixture of a drug and a hydrophobic and/or hydrophilic fusible carrier in a high speed mixture so as to form agglomerates, breaking the agglomerates to give controlled release particles and optionally continuing the mechanical working with the optional addition of a low percentage of the carrier or diluent.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: December 19, 2000
    Assignee: Euro-Celtique, S.A.
    Inventors: Ronald Brown Miller, Stewart Thomas Leslie, Sandra Therese Antoinette Malkowska, Derek Allan Prater, Trevor John Knott, Joanne Heafield, Deborah Challis
  • Substained release compositions and a method of preparing pharmaceutical compositions
    Patent number: 5965163
    Abstract: A process for the manufacture of particles comprises mechanically working a mixture of a drug and a hydrophobic and/or hydrophilic fusible carrier in a high speed mixture so as to form agglomerates, breaking the agglomerates to give controlled release particles and optionally continuing the mechanical working with the optional addition of a low percentage of the carrier or diluent.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: October 12, 1999
    Assignee: Euro-Celtique, S.A.
    Inventors: Ronald Brown Miller, Stewart Thomas Leslie, Sandra Therese Antoinette Malkowska, Derek Allan Prater, Trevor John Knott, Joanne Heafield, Deborah Challis
  • Pharmaceutical multiparticulates
    Patent number: 5891471
    Abstract: A process for the manufacture of particles comprises mechanically working a mixture of a drug and a hydrophobic and/or hydrophilic fusible carrier in a high speed mixture so as to form agglomerates, breaking the agglomerates to give controlled release particles and optionally continuing the mechanical working with the optional addition of a low percentage of the carrier or diluent.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: April 6, 1999
    Assignee: Euro-Celtique, S.A.
    Inventors: Ronald Brown Miller, Stewart Thomas Leslie, Sandra Therese Antoinette Malkowska, Treavor John Knott, Deborah Challis, Derek Allan Prater, Joanne Heafield
  • Method of preparing sustained release pharmaceutical compositions
    Patent number: 5849240
    Abstract: A process for the manufacture of particles comprises mechanically working a mixture of a drug and a hydrophobic and/or hydrophilic fusible carrier in a high speed mixture so as to form agglomerates, breaking the agglomerates to give controlled release particles and optionally continuing the mechanical working with the optional addition of a low percentage of the carrier or diluent.
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: December 15, 1998
    Assignee: Euro-Celtique, S.A.
    Inventors: Ronald Brown Miller, Stewart Thomas Leslie, Sandra Therese Antoinette Malkowska, Derek Allan Prater, Treavor John Knott, Joanne Heafield, Deborah Challis