Patents by Inventor Douglas John Smith

Douglas John Smith 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).

  • Process for the preparation of 8-azabicyclo(3.2.1)octane derivatives
    Patent number: 6323343
    Abstract: A process for preparing a compound of formula (IV), wherein R1 is C1-4alkyl, CH2(C1-3haloalkyl), benzyl, CH2(C2-5akenyl or CH2(C2-5alkynyl), which comprises reducing a compound of formula (III). Compounds of formula (IV) are agrochemical intermediates.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: November 27, 2001
    Assignee: Syngenta Limited
    Inventors: Martin Charles Bowden, Stephen Martin Brown, Douglas John Smith, Trevor Robert Perrior
  • Fungicide intermediates
    Patent number: 5750778
    Abstract: Certain fluoroalkanoic acids and derivatives, including 2-fluoroisobutyric acid and 2-fluoroisobutyryl chloride, useful as intermediates for fungicides, and methods of preparing them.
    Type: Grant
    Filed: August 10, 1993
    Date of Patent: May 12, 1998
    Assignee: Zeneca Limited
    Inventors: Patrick Jelf Crowley, Kevin Robert Lawson, Douglas John Smith, Donn Warwick Moseley