Patents by Inventor William L. Fitch

William L. Fitch 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).

  • Apparatus and methods for evaluating the quality of a combinatorial library of compounds
    Patent number: 6706244
    Abstract: Devices and methods are provided to facilitate the evaluation of the quality of a combinatorial library of compounds. One exemplary device comprises a holding plate having an array of apertures. A plurality of vials are removably held within the apertures. Each of the vials has an open top end. A seal member is disposed over the top ends of the vials, and a top plate is removably coupled to the holding plate to force the seal member against the top ends of the vials.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: March 16, 2004
    Assignee: Glaxo Wellcome Inc.
    Inventors: Frank R. Holden, William L. Fitch, Kenneth C. Lewis
  • Apparatus and methods for evaluating the quality of a combinatorial library of compounds
    Publication number: 20020001541
    Abstract: Devices and methods are provided to facilitate the evaluation of the quality of a combinatorial library of compounds. One exemplary device comprises a holding plate having an array of apertures. A plurality of vials are removably held within the apertures. Each of the vials has an open top end. A seal member is disposed over the top ends of the vials, and a top plate is removably coupled to the holding plate to force the seal member against the top ends of the vials.
    Type: Application
    Filed: May 16, 2001
    Publication date: January 3, 2002
    Inventors: Frank R. Holden, William L. Fitch, Kenneth C. Lewis
  • Microcapsules
    Patent number: 5674519
    Abstract: Microcapsules formed from urea-, thiourea- and/or melamine-formaldehyde prepolymers which are particularly useful in formulating agrochemicals.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: October 7, 1997
    Assignee: Novartis AG
    Inventors: Ralston Curtis, Rakesh Jain, David C. Creech, William L. Fitch
  • Process for producing microcapsules
    Patent number: 5462915
    Abstract: Microcapsules formed from urea-, thiourea- and/or melamine-formaldehyde prepolymers which are particularly useful in formulating agrochemicals.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: October 31, 1995
    Assignee: Sandoz Ltd.
    Inventors: Ralston Curtis, Rakesh Jain, David C. Creech, William L. Fitch