Patents by Inventor Douglas M. Bissonnette

Douglas M. Bissonnette 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).

  • Method and apparatus for filtering and drying a product
    Patent number: 7089681
    Abstract: The present invention relates to a method and apparatus for filtering and drying a product. In a preferred embodiment, the apparatus comprises a container having a plurality of porous walls and a plurality of solid walls that divide the container into a plurality of product chambers, a plurality of vacuum chambers, and, preferably, a plurality of heat transfer chambers. Each product chamber shares at least one porous wall with an adjacent vacuum chamber. Each product chamber preferably shares at least one solid wall with an adjacent heat transfer chamber. According to the method of the present invention, a product is introduced into the product chambers, where the product is held while a substance is filtered from the product through the porous walls and the product is dried by reducing the pressure in the vacuum chambers and the product chambers.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: August 15, 2006
    Assignee: Alkermes Controlled Therapeutics, Inc.
    Inventors: Paul F. Herbert, Douglas M. Bissonnette, Gregory C. Troiano
  • Method and apparatus for filtering and drying a product
    Publication number: 20040099612
    Abstract: The present invention relates to a method and apparatus for filtering and drying a product. In a preferred embodiment, the apparatus comprises a container having a plurality of porous walls and a plurality of solid walls that divide the container into a plurality of product chambers, a plurality of vacuum chambers, and, preferably, a plurality of heat transfer chambers. Each product chamber shares at least one porous wall with an adjacent vacuum chamber. Each product chamber preferably shares at least one solid wall with an adjacent heat transfer chamber. According to the method of the present invention, a product is introduced into the product chambers, where the product is held while a substance is filtered from the product through the porous walls and the product is dried by reducing the pressure in the vacuum chambers and the product chambers.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 27, 2004
    Applicant: Alkermes Controlled Therapeutics, Inc.
    Inventors: Paul F. Herbert, Douglas M. Bissonnette, Gregory C. Troiano