Patents by Inventor Stephen E. Walker

Stephen E. Walker 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).

  • Particulate materials
    Patent number: 7354601
    Abstract: A particulate coformulation, each particle comprising a core of an active substance surrounded by an excipient coating, the particles having a volume mean diameter of 10 ?m or less, which on oral administration releases the active substance at a rate such that the time (Tmax) taken to attain the maximum active concentration in the bloodstream is one hour or less. The coformulation may be made using a Nektar™ SCF particle formation process.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: April 8, 2008
    Inventors: Stephen E. Walker, Linda S. Daintree, Caroline S. German
  • Pharmaceutical preparations in solid unit dosage form
    Patent number: 4450877
    Abstract: A process for the manufacture of pharmaceutical preparations in hard capsule form and a capsule filling machine equipped with a detector system and a filling head suitable for dosing a liquid.
    Type: Grant
    Filed: September 8, 1982
    Date of Patent: May 29, 1984
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Stephen E. Walker, Keith Bedford, Terence Eaves