Patents by Inventor Andrew Nicholas Trethewey

Andrew Nicholas Trethewey 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).

  • Detection of sulphur containing compounds
    Patent number: 5759861
    Abstract: A method is taught for the detection of organosulfur compounds relating to bis-(2-chloroethyl)- sulphide. The detection can be achieved at trace levels or above and is particularly important in the field of environmental, biological and medical analysis.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: June 2, 1998
    Assignee: Secretary of State for Defence in her Britannic Majesty's Government of the U.K. of Gt. Britain & Northern Ireland of Defence Evaluation & Research Agency
    Inventors: Tony John Christie, Alan Townshend, Andrew Nicholas Trethewey