Patents by Inventor Graham C. Smith

Graham C. 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).

  • Position-sensitive radiation detector
    Patent number: 4392057
    Abstract: Apparatus for sensing the position by received radiation in which a multiplicity of discrete sensors are spaced in at least one sensing direction and are connected in at least two groups, the density of sensors in each group ranging along the sensing direction, each group having a different variation and at least one sensor in each group being affected by received radiation. The ratio of the sum of the influence of radiation on one group to the sum of the influence on all groups gives a measure of the position of received radiation.
    Type: Grant
    Filed: February 19, 1981
    Date of Patent: July 5, 1983
    Assignee: National Research Development Corporation
    Inventors: Ernest Mathieson, Graham C. Smith, Philip J. Gilvin
  • Derivatives of certain phenyliminomethylpyridines
    Patent number: 4281134
    Abstract: Derivatives of certain phenyliminomethylpyridines, useful as fungicides and/or plant growth regulators.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: July 28, 1981
    Assignee: Shell Oil Company
    Inventors: Pieter Ten Haken, Shirley B. Webb, Graham C. Smith
  • Compositions and methods of combatting weeds in crops with 2,6-dihalobenzyl ether
    Patent number: 4042369
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is alkyl; R.sub.2 is alkyl, aryl or aralkyl; R.sub.3 is hydrogen or alkyl or R.sub.2 and R.sub.3 together is polymethylene; and R.sub.4 is 2,6-dihalobenzyl are useful as herbicides.
    Type: Grant
    Filed: April 28, 1975
    Date of Patent: August 16, 1977
    Assignee: Shell Oil Company
    Inventors: Michael D. Barker, Eirlys R. Isaac, Peter Kirby, Graham C. Smith