Patents by Inventor Sheila H. H. DeWitt

Sheila H. H. DeWitt 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).

  • Patent number: 5714127
    Abstract: A system for the multiple, simultaneous synthesis of compounds preferably uses a reaction apparatus comprising a reservoir rack having a plurality of reaction wells, a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower ends, a holder block, having a plurality of apertures, and a manifold, which has ports to allow introduction/maintenance of a controlled environment. The manifold top wall has a plurality of apertures in axial alignment with the reaction tubes and a gasket which allows penetration by a needle in order to dispense and aspirate materials from the reaction tubes. Sealing members, such as gaskets, are placed between the holder block, manifold and reservoir rack and the components are releasably fastened together. A robotic sample processor is used to automate the synthesis process using the reaction apparatus.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 3, 1998
    Assignee: Warner-Lambert Company
    Inventors: Sheila H. H. DeWitt, John S. Kiely, Michael R. Pavia, Mel C. Schroeder, Charles J. Stankovic
  • Patent number: 5702672
    Abstract: An apparatus for multiple, simultaneous synthesis of compounds which consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower ends; a holder block, having a plurality of apertures; and a manifold, which may have ports to allow introduction/maintenance of a controlled environment. The manifold top wall has apertures and a detachable plate with identical apertures. The apparatus is constructed from materials which will accommodate heating, cooling, agitation, or corrosive reagents. Gaskets are placed between the components. Rods or clamps are provided for fastening the components together. Apparatus operation involves placing the filters on the lower ends of the reaction tubes in the reservoir block wells, and the upper ends passing through the holder block apertures and into the manifold.
    Type: Grant
    Filed: October 10, 1995
    Date of Patent: December 30, 1997
    Assignee: Warner-Lambert Company
    Inventors: Sheila H. H. DeWitt, Michael Kell, Michael R. Pavia, John S. Kiely, Mel C. Schroeder, Charles J. Stankovic, Steven Ware
  • Patent number: 5612002
    Abstract: A method for the multiple, simultaneous synthesis of compounds comprising the steps of: 1) providing an apparatus comprising a plurality of reaction tubes having filter members on their lower ends, a reservoir member for receiving the filter member, a holder member having a plurality of apertures for supporting the reaction tubes, and a manifold member adjacent to the holder member and enclosing the upper ends of the reaction tubes; 2) charging the apparatus with reactants required for synthesis; 3) synthesizing the compounds in solution; or optionally 4) cleaving the compounds from a solid support within the apparatus.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: March 18, 1997
    Assignee: Warner-Lambert Company
    Inventors: Donna R. Cody, Sheila H. H. DeWitt, John C. Hodges, John S. Kiely, Walter H. Moos, Michael R. Pavia, Bruce D. Roth, Mel C. Schroeder, Charles J. Stankovic
  • Patent number: 5593642
    Abstract: An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower ends; a holder block, having a plurality of apertures; and a manifold, which my have ports to allow introduction/maintenance of a controlled environment. The manifold top wall has apertures and a detachable plate with identical apertures. The apparatus is constructed from materials which will accommodate heating, cooling, agitation, or corrosive reagents. Gaskets are placed between the components. Rods or clamps are provided for fastening the components together. Apparatus operation involves placing the filters on the lower ends of the reaction tubes in the reservoir block wells, and the upper ends passing through the holder block apertures and into the manifold.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: January 14, 1997
    Assignee: Warner-Lambert Company
    Inventors: Sheila H. H. DeWitt, John S. Kiely, Michael R. Pavia, Mel C. Schroeder, Charles J. Stankovic
  • Patent number: 5582801
    Abstract: An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower ends; a holder block, having a plurality of apertures; and a manifold, which may have ports to allow introduction/maintenance of a controlled environment. The manifold top wall has apertures and a detachable plate with identical apertures. The apparatus is constructed from materials which will accommodate heating, cooling, agitation, or corrosive reagents. Gaskets are placed between the components. Rods or clamps are provided for fastening the components together. Apparatus operation involves placing the filters on the lower ends of the reaction tubes in the reservoir block wells, and the upper ends passing through the holder block apertures and into the manifold.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 10, 1996
    Assignee: Warner-Lambert Company
    Inventors: Sheila H. H. DeWitt, John S. Kiely, Michael R. Pavia, Mel C. Schroeder, Charles J. Stankovic
  • Patent number: 5567391
    Abstract: An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower ends; a holder block, having a plurality of apertures; and a manifold, which may have ports to allow introduction/maintenance of a controlled environment. The manifold top wall has apertures and a detachable plate with identical apertures. The apparatus is constructed from materials which will accommodate heating, cooling, agitation, or corrosive reagents. Gaskets are placed between the components. Rods or clamps are provided for fastening the components together. Apparatus operation involves placing the filters on the lower ends of the reaction tubes in the reservoir block wells, and the upper ends passing through the holder block apertures and into the manifold.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 22, 1996
    Assignee: Warner-Lambert Company
    Inventors: Sheila H. H. DeWitt, John S. Kiely, Michael R. Pavia, Mel C. Schroeder, Charles J. Stankovic
  • Patent number: 5565173
    Abstract: An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction cubes, usually gas dispersion tubes, having filters on their lower ends; a holder block, having a plurality of apertures; and a manifold, which may have ports to allow introduction/maintenance of a controlled environment. The manifold top wall has apertures and a detachable place with identical apertures. The apparatus is constructed from materials which will accommodate heating, cooling, agitation, or corrosive reagents. Gaskets are placed between the components. Rods or clamps are provided for fastening the components together. Apparatus operation involves placing the filters on the lower ends of the reaction tubes in the reservoir block wells, and the upper ends passing through the holder block apertures and into the manifold.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 15, 1996
    Assignee: Warner-Lambert Company
    Inventors: Sheila H. H. DeWitt, John S. Kiely, Michael R. Pavia, Mel C. Schroeder, Charles J. Stankovic
  • Patent number: 5324483
    Abstract: An apparatus and method which provides a suitable location for multiple, simultaneous synthesis of compounds. The apparatus consists of: a reservoir block having a plurality of wells; a plurality of reaction tubes, usually gas dispersion tubes, having filters on their lower ends; a holder block, having a plurality of apertures; and a manifold, which may have ports to allow introduction/maintenance of a controlled environment. The manifold top wall has apertures and a detachable plate with identical apertures. The apparatus is constructed from materials which will accommodate heating, cooling, agitation, or corrosive reagents. Gaskets are placed between the components. Rods or clamps are provided for fastening the components together. Apparatus operation involves placing the filters on the lower ends of the reaction tubes in the reservoir block wells, and the upper ends passing through the holder block apertures and into the manifold.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: June 28, 1994
    Assignee: Warner-Lambert Company
    Inventors: Donna R. Cody, Sheila H. H. DeWitt, John C. Hodges, John S. Kiely, Walter H. Moos, Michael R. Pavia, Bruce D. Roth, Mel C. Schroeder, Charles J. Stankovic