Patents by Inventor Ewan McQueen

Ewan McQueen 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).

  • Preparation of dialkyl tellurium and dialkyl selenium
    Patent number: 5442112
    Abstract: Dialkyl SE and TE compounds are prepared by reacting a Na chalcogenide with a alkyl halide in a two-phase system of solvents.
    Type: Grant
    Filed: June 13, 1994
    Date of Patent: August 15, 1995
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: David J. Cole-Hamilton, Ewan McQueen