Patents by Inventor Philip Keith Roach

Philip Keith Roach 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).

  • Publication number: 20040083826
    Abstract: A gas borne substance sampling device (10) includes a housing (12) through which gas can be passed, and a holder (14) for gas borne substance capturing material. The holder (14) is located or locatable inside the housing (12) to contact the capturing material with gas passing through the housing (12). The device (10) has a sampling condition in which at least a major portion of the holder (14) is protected inside or covered by the housing (12) and an analysis condition in which at least a portion of the holder (14) is exposed or outside the housing (12).
    Type: Application
    Filed: August 13, 2003
    Publication date: May 6, 2004
    Applicant: CSIR
    Inventors: Coenraad Frederik Botha, Pieter Francois Smith, Philip Keith Roach, Dennis Kappetijn, Marthinus Christoffel Barnard, Paul Fritz Fuls